component
IN-S63BT5UW
Public Unreviewedby AravK
Inolux Corporation · Top View SMD LED · 0603 (1.6 × 0.8mm) · InGaN + phosphor
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<title>IN-S63BT5UW — Component Characterization</title>
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<span style="color:var(--text-muted);font-size:12px;margin-right:8px">Full page:</span>
<code style="color:var(--accent);font-size:11px;background:var(--elevated);padding:4px 8px;border-radius:4px;user-select:all">https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/in-s63bt5uw/IN-S63BT5UW.html</code>
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<div class="header">
<div class="header-top">
<div class="brand">Adom</div>
<div class="vsep"></div>
<div class="crumb">Components › LEDs › 0603</div>
</div>
<h1>IN-S63BT5UW — <span class="val">White</span></h1>
<div class="subtitle">Inolux Corporation · Top View SMD LED · 0603 (1.6 × 0.8mm) · InGaN + phosphor</div>
<div class="tags">
<span class="tag pkg">0603</span>
<span class="tag mfr">Inolux</span>
<span class="tag series">IN-S63BT</span>
<span class="tag rohs">RoHS</span>
<span class="tag app">White LED</span>
</div>
</div>
<div class="container">
<!-- Key Specs -->
<div class="section">
<div class="spec-cards">
<div class="spec-card highlight">
<div class="sc-label">Color Temp</div>
<div class="sc-value" style="color:#F5F5F5">White</div>
<div class="sc-detail">CIE x=0.29, y=0.29</div>
</div>
<div class="spec-card">
<div class="sc-label">Luminous Intensity</div>
<div class="sc-value">450mcd</div>
<div class="sc-detail">@ 5mA</div>
</div>
<div class="spec-card">
<div class="sc-label">Forward Voltage</div>
<div class="sc-value">3.0V</div>
<div class="sc-detail">typical @ 5mA</div>
</div>
<div class="spec-card">
<div class="sc-label">Forward Current</div>
<div class="sc-value">25mA</div>
<div class="sc-detail">5mA typical</div>
</div>
<div class="spec-card">
<div class="sc-label">Viewing Angle</div>
<div class="sc-value">120°</div>
<div class="sc-detail">2θ½</div>
</div>
<div class="spec-card">
<div class="sc-label">Package</div>
<div class="sc-value">0603</div>
<div class="sc-detail">1.6×0.8×0.3mm</div>
</div>
</div>
</div>
<div class="grid-2">
<!-- Left column -->
<div>
<!-- Electrical Characteristics -->
<div class="section">
<h2 class="section-title">Electrical Characteristics</h2>
<div class="card">
<table class="detail-table">
<tr><td>Forward Voltage (typ)</td><td>3.0V @ 5mA</td></tr>
<tr><td>Forward Voltage (max)</td><td>3.1V</td></tr>
<tr><td>Reverse Voltage (max)</td><td>5V</td></tr>
<tr><td>Forward Current (max)</td><td>25mA</td></tr>
<tr><td>Peak Forward Current</td><td>100mA (1/10, 0.1ms)</td></tr>
<tr><td>Power Dissipation</td><td>75mW</td></tr>
<tr><td>CIE Chromaticity</td><td>x=0.29, y=0.29</td></tr>
<tr><td>Luminous Intensity</td><td>450 mcd @ 5mA</td></tr>
<tr><td>Viewing Angle (2θ½)</td><td>120°</td></tr>
<tr><td>Material</td><td>InGaN + phosphor</td></tr>
<tr><td>Lens Type</td><td>Clear</td></tr>
</table>
</div>
</div>
<!-- Operating Conditions -->
<div class="section">
<h2 class="section-title">Operating Conditions</h2>
<div class="card">
<table class="detail-table">
<tr><td>Operating Temp</td><td>−30°C to +85°C</td></tr>
<tr><td>Storage Temp</td><td>−40°C to +90°C</td></tr>
<tr><td>ESD Sensitivity</td><td>InGaN — handle with care</td></tr>
<tr><td>Polarity</td><td>Cathode marked on package</td></tr>
</table>
<div style="margin-top:10px;padding:8px 12px;background:rgba(248,81,73,0.08);border:1px solid rgba(248,81,73,0.2);border-radius:6px;font-size:11px;color:var(--red)">
⚠ ESD Sensitive Device — InGaN LEDs require proper ESD precautions during handling and assembly. Use grounded wrist straps and ESD-safe workstations.
</div>
</div>
</div>
</div>
<!-- Right column -->
<div>
<!-- Package Drawing -->
<div class="section">
<h2 class="section-title">Package & Dimensions</h2>
<div class="card">
<div class="pkg-drawing">
<svg width="100%" height="200" viewBox="0 0 500 200">
<!-- Top view -->
<text x="120" y="14" fill="#8b949e" font-size="10" text-anchor="middle">Top View</text>
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<line x1="155" y1="28" x2="155" y2="85" stroke="#F5F5F5" stroke-width="1.5" stroke-dasharray="3,2"/>
<rect x="92" y="38" width="36" height="37" rx="1" fill="#F5F5F540" stroke="#F5F5F580" stroke-width="0.8"/>
<path d="M110,47 Q125,35 135,47" stroke="#F5F5F599" stroke-width="0.6" fill="none"/>
<text x="168" y="18" fill="#F5F5F5" font-size="9" text-anchor="middle">K (cathode)</text>
<text x="68" y="18" fill="#8b949e" font-size="9" text-anchor="middle">A</text>
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<line x1="55" y1="98" x2="55" y2="106" stroke="#484f58" stroke-width="0.5"/>
<line x1="185" y1="98" x2="185" y2="106" stroke="#484f58" stroke-width="0.5"/>
<text x="120" y="118" fill="#e6edf3" font-size="10" text-anchor="middle">1.6 ± 0.1</text>
<line x1="195" y1="24" x2="195" y2="89" stroke="#484f58" stroke-width="0.5"/>
<line x1="191" y1="24" x2="199" y2="24" stroke="#484f58" stroke-width="0.5"/>
<line x1="191" y1="89" x2="199" y2="89" stroke="#484f58" stroke-width="0.5"/>
<text x="215" y="60" fill="#e6edf3" font-size="10">0.8 ± 0.1</text>
<!-- Side view -->
<text x="380" y="14" fill="#8b949e" font-size="10" text-anchor="middle">Side View</text>
<rect x="315" y="48" width="130" height="30" rx="2" fill="#1c2128" stroke="#30363d" stroke-width="1.5"/>
<path d="M320,48 Q380,40 445,48" stroke="#F5F5F580" stroke-width="1.5" fill="#F5F5F514"/>
<rect x="315" y="48" width="20" height="30" rx="1" fill="#F5F5F522" stroke="#F5F5F5" stroke-width="1"/>
<rect x="425" y="48" width="20" height="30" rx="1" fill="#F5F5F522" stroke="#F5F5F5" stroke-width="1"/>
<line x1="455" y1="38" x2="455" y2="78" stroke="#484f58" stroke-width="0.5"/>
<line x1="451" y1="38" x2="459" y2="38" stroke="#484f58" stroke-width="0.5"/>
<line x1="451" y1="78" x2="459" y2="78" stroke="#484f58" stroke-width="0.5"/>
<text x="465" y="62" fill="#e6edf3" font-size="10">0.3 ± 0.05</text>
<text x="120" y="145" fill="#8b949e" font-size="10" text-anchor="middle">0603 (1608 metric)</text>
<text x="380" y="100" fill="#8b949e" font-size="10" text-anchor="middle">Clear lens · InGaN + phosphor</text>
<rect x="55" y="158" width="390" height="28" rx="4" fill="#F5F5F50f" stroke="#F5F5F533" stroke-width="0.5"/>
<text x="250" y="176" fill="#F5F5F5" font-size="10" text-anchor="middle">⚠ Polarized — cathode mark on package indicates negative terminal</text>
</svg>
</div>
</div>
</div>
<!-- Land Pattern -->
<div class="section">
<h2 class="section-title">Recommended Land Pattern</h2>
<div class="card">
<table class="detail-table">
<tr><td>Pad Width</td><td>0.7 ± 0.1mm</td></tr>
<tr><td>Pad Height</td><td>0.7 ± 0.1mm</td></tr>
<tr><td>Pad Spacing (center-to-center)</td><td>0.7 ± 0.1mm</td></tr>
<tr><td>Polarity</td><td>Cathode marked on PCB</td></tr>
</table>
</div>
</div>
</div>
</div>
<!-- Color Swatch -->
<div class="section">
<h2 class="section-title">Emission Color</h2>
<div class="card color-swatch">
<div class="swatch-block" style="background: linear-gradient(135deg, #F5F5F5, #D0D0D0); box-shadow: 0 4px 24px rgba(200,200,200,0.3); display:flex; align-items:center; justify-content:center;">
<span style="font-size:28px;font-weight:700;font-family:'Familjen Grotesk',sans-serif;color:#222;text-shadow:0 2px 8px rgba(0,0,0,0.3)">White</span>
</div>
<div class="swatch-label" style="color:#F5F5F5">CIE x=0.29, y=0.29</div>
<div class="swatch-detail">InGaN + phosphor · CSS approximation: #F5F5F5</div>
</div>
</div>
<!-- Spectral Distribution -->
<div class="section">
<h2 class="section-title">Spectral Distribution</h2>
<div class="chart-wrap">
<h3>Broad-spectrum White Emission (InGaN + Phosphor)</h3>
<svg id="spectral-chart" width="100%" height="280" viewBox="0 0 700 280">
<rect x="60" y="20" width="600" height="200" fill="#0d1117" rx="4"/>
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<line x1="60" y1="20" x2="60" y2="220" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="170" x2="660" y2="170" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="120" x2="660" y2="120" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="70" x2="660" y2="70" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="20" x2="660" y2="20" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="180" y1="20" x2="180" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="300" y1="20" x2="300" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="420" y1="20" x2="420" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="540" y1="20" x2="540" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<!-- Blue peak from InGaN die ~450nm -->
<defs>
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<stop offset="0%" stop-color="#F5F5F5" stop-opacity="0.5"/>
<stop offset="100%" stop-color="#F5F5F5" stop-opacity="0.05"/>
</linearGradient>
</defs>
<!-- Phosphor-converted white: blue peak + broad yellow-green -->
<path d="M60,220 L100,218 L140,210 L160,180 L170,100 L180,40 L190,30 L200,40 L210,80 L230,130 L260,120 L300,100 L340,85 L380,80 L420,78 L460,82 L500,95 L540,130 L580,170 L620,200 L660,218 L660,220 Z"
fill="url(#whiteGrad)" opacity="0.3"/>
<path d="M60,220 L100,218 L140,210 L160,180 L170,100 L180,40 L190,30 L200,40 L210,80 L230,130 L260,120 L300,100 L340,85 L380,80 L420,78 L460,82 L500,95 L540,130 L580,170 L620,200 L660,218"
stroke="#F5F5F5" stroke-width="2.5" fill="none"/>
<!-- Blue peak annotation -->
<circle cx="190" cy="30" r="4" fill="#4169E1" opacity="0.9"/>
<text x="190" y="238" fill="#4169E1" font-size="10" text-anchor="middle">~450nm</text>
<text x="200" y="22" fill="#4169E1" font-size="9">Blue peak</text>
<!-- Phosphor peak annotation -->
<circle cx="420" cy="78" r="4" fill="#FFD700" opacity="0.9"/>
<text x="420" y="238" fill="#FFD700" font-size="10" text-anchor="middle">~560nm</text>
<text x="440" y="70" fill="#FFD700" font-size="9">Phosphor</text>
<!-- Y axis labels -->
<text x="55" y="224" fill="#484f58" font-size="9" text-anchor="end">0%</text>
<text x="55" y="174" fill="#484f58" font-size="9" text-anchor="end">25%</text>
<text x="55" y="124" fill="#484f58" font-size="9" text-anchor="end">50%</text>
<text x="55" y="74" fill="#484f58" font-size="9" text-anchor="end">75%</text>
<text x="55" y="24" fill="#484f58" font-size="9" text-anchor="end">100%</text>
<text x="12" y="124" fill="#484f58" font-size="9" text-anchor="middle" transform="rotate(-90,12,124)">Relative Intensity</text>
<!-- X axis labels -->
<text x="60" y="255" fill="#484f58" font-size="9" text-anchor="middle">400</text>
<text x="180" y="255" fill="#484f58" font-size="9" text-anchor="middle">440</text>
<text x="300" y="255" fill="#484f58" font-size="9" text-anchor="middle">480</text>
<text x="420" y="255" fill="#484f58" font-size="9" text-anchor="middle">560</text>
<text x="540" y="255" fill="#484f58" font-size="9" text-anchor="middle">640</text>
<text x="660" y="255" fill="#484f58" font-size="9" text-anchor="middle">700</text>
<text x="360" y="272" fill="#484f58" font-size="9" text-anchor="middle">Wavelength (nm)</text>
</svg>
<div class="chart-note">White LED spectrum shows two peaks: a narrow blue emission from the InGaN die (~450nm) and a broad phosphor-converted yellow-green peak (~560nm). The combination produces white light with CIE coordinates x=0.29, y=0.29.</div>
</div>
</div>
<!-- IV Curve -->
<div class="section">
<h2 class="section-title">Forward Current vs. Forward Voltage</h2>
<div class="chart-wrap">
<h3>IV Characteristic — the essential curve for circuit design</h3>
<svg id="iv-chart" width="100%" height="280" viewBox="0 0 700 280">
<rect x="60" y="20" width="600" height="200" fill="#0d1117" rx="4"/>
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<line x1="60" y1="20" x2="60" y2="220" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="170" x2="660" y2="170" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="120" x2="660" y2="120" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="70" x2="660" y2="70" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="20" x2="660" y2="20" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="231" y1="20" x2="231" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="403" y1="20" x2="403" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="574" y1="20" x2="574" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<defs>
<linearGradient id="ivGrad" x1="0" y1="0" x2="0" y2="1">
<stop offset="0%" stop-color="#F5F5F5" stop-opacity="0.6"/>
<stop offset="100%" stop-color="#F5F5F5" stop-opacity="0.05"/>
</linearGradient>
</defs>
<path d="M60,220 L435,220 L442,220 L450,219 L458,218 L465,214 L480,200 L495,164 L510,128 L532,74 L555,20 L555,220 L60,220 Z" fill="url(#ivGrad)" opacity="0.15"/>
<path d="M60,220 L435,220 L442,220 L450,219 L458,218 L465,214 L480,200 L495,164 L510,128 L532,74 L555,20" stroke="#F5F5F5" stroke-width="2.5" fill="none"/>
<!-- Operating point -->
<circle cx="480" cy="200" r="5" fill="#F5F5F5" opacity="0.9"/>
<line x1="480" y1="200" x2="480" y2="220" stroke="#F5F5F5" stroke-width="0.5" stroke-dasharray="3,3" opacity="0.5"/>
<line x1="60" y1="200" x2="480" y2="200" stroke="#F5F5F5" stroke-width="0.5" stroke-dasharray="3,3" opacity="0.5"/>
<rect x="485" y="186" width="110" height="28" rx="4" fill="#F5F5F51e"/>
<text x="540" y="199" fill="#F5F5F5" font-size="10" text-anchor="middle">Typ: 3.0V, 5mA</text>
<text x="540" y="210" fill="#8b949e" font-size="8" text-anchor="middle">Operating point</text>
<!-- Max If line -->
<line x1="60" y1="120" x2="660" y2="120" stroke="#f85149" stroke-width="0.5" stroke-dasharray="3,3" opacity="0.3"/>
<text x="100" y="114" fill="#f85149" font-size="9">25mA max</text>
<!-- Y axis labels -->
<text x="55" y="224" fill="#484f58" font-size="9" text-anchor="end">0</text>
<text x="55" y="174" fill="#484f58" font-size="9" text-anchor="end">12.5</text>
<text x="55" y="124" fill="#484f58" font-size="9" text-anchor="end">25</text>
<text x="55" y="74" fill="#484f58" font-size="9" text-anchor="end">37.5</text>
<text x="55" y="24" fill="#484f58" font-size="9" text-anchor="end">50</text>
<text x="12" y="124" fill="#484f58" font-size="9" text-anchor="middle" transform="rotate(-90,12,124)">Forward Current (mA)</text>
<text x="60" y="255" fill="#484f58" font-size="9" text-anchor="middle">0</text>
<text x="231" y="255" fill="#484f58" font-size="9" text-anchor="middle">1.0</text>
<text x="403" y="255" fill="#484f58" font-size="9" text-anchor="middle">2.0</text>
<text x="574" y="255" fill="#484f58" font-size="9" text-anchor="middle">3.0</text>
<text x="360" y="272" fill="#484f58" font-size="9" text-anchor="middle">Forward Voltage (V)</text>
</svg>
<div class="chart-note">Characteristic exponential IV curve for a InGaN + phosphor white LED. Design point: 3.0V typical at 5mA. Never exceed 25mA continuous forward current.</div>
</div>
</div>
<!-- Derating -->
<div class="section">
<h2 class="section-title">Forward Current Derating</h2>
<div class="chart-wrap">
<h3>Maximum Forward Current vs. Ambient Temperature</h3>
<svg id="derating-chart" width="100%" height="280" viewBox="0 0 700 280">
<rect x="60" y="20" width="600" height="200" fill="#0d1117" rx="4"/>
<line x1="60" y1="220" x2="660" y2="220" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="20" x2="60" y2="220" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="170" x2="660" y2="170" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="120" x2="660" y2="120" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="70" x2="660" y2="70" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="180" y1="20" x2="180" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="300" y1="20" x2="300" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="420" y1="20" x2="420" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="540" y1="20" x2="540" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<defs>
<linearGradient id="derateGrad" x1="0" y1="0" x2="0" y2="1">
<stop offset="0%" stop-color="#F5F5F5" stop-opacity="0.6"/>
<stop offset="100%" stop-color="#F5F5F5" stop-opacity="0.05"/>
</linearGradient>
</defs>
<!-- Derating: flat at 25mA until 25C, linear down to 0mA at ~89C -->
<path d="M60,20 L210,20 L540,187 L565,220 L60,220 Z" fill="url(#derateGrad)" opacity="0.12"/>
<path d="M60,20 L210,20" stroke="#F5F5F5" stroke-width="2.5" fill="none"/>
<path d="M210,20 L540,187" stroke="#F5F5F5" stroke-width="2.5" fill="none"/>
<path d="M540,187 L565,220" stroke="#F5F5F5" stroke-width="2.5" fill="none" stroke-dasharray="4,3"/>
<circle cx="210" cy="20" r="4" fill="#F5F5F5" opacity="0.9"/>
<text x="210" y="40" fill="#F5F5F5" font-size="10" text-anchor="middle">25mA @ 25°C</text>
<circle cx="540" cy="187" r="4" fill="#F5F5F5" opacity="0.9"/>
<text x="540" y="178" fill="#F5F5F5" font-size="10" text-anchor="middle">5mA @ 80°C</text>
<rect x="200" y="100" width="110" height="20" rx="4" fill="rgba(63,185,80,0.12)"/>
<text x="255" y="114" fill="#3fb950" font-size="10" text-anchor="middle">Safe operating</text>
<text x="55" y="224" fill="#484f58" font-size="9" text-anchor="end">0</text>
<text x="55" y="174" fill="#484f58" font-size="9" text-anchor="end">7.5</text>
<text x="55" y="124" fill="#484f58" font-size="9" text-anchor="end">15</text>
<text x="55" y="74" fill="#484f58" font-size="9" text-anchor="end">22.5</text>
<text x="55" y="24" fill="#484f58" font-size="9" text-anchor="end">30</text>
<text x="12" y="124" fill="#484f58" font-size="9" text-anchor="middle" transform="rotate(-90,12,124)">Max If (mA)</text>
<text x="60" y="255" fill="#484f58" font-size="9" text-anchor="middle">0</text>
<text x="210" y="255" fill="#484f58" font-size="9" text-anchor="middle">25</text>
<text x="360" y="255" fill="#484f58" font-size="9" text-anchor="middle">50</text>
<text x="540" y="255" fill="#484f58" font-size="9" text-anchor="middle">80</text>
<text x="660" y="255" fill="#484f58" font-size="9" text-anchor="middle">100</text>
<text x="360" y="272" fill="#484f58" font-size="9" text-anchor="middle">Ambient Temperature (°C)</text>
</svg>
<div class="chart-note">Maximum forward current decreases linearly with temperature above 25°C. At 85°C, significant derating is required. Design margin is critical in enclosed or high-temperature applications.</div>
</div>
</div>
<!-- Brightness vs Current -->
<div class="section">
<h2 class="section-title">Luminous Intensity vs. Forward Current</h2>
<div class="chart-wrap">
<h3>Relative Brightness (normalized at 5mA)</h3>
<svg id="brightness-current-chart" width="100%" height="280" viewBox="0 0 700 280">
<rect x="60" y="20" width="600" height="200" fill="#0d1117" rx="4"/>
<line x1="60" y1="220" x2="660" y2="220" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="20" x2="60" y2="220" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="170" x2="660" y2="170" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="120" x2="660" y2="120" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="70" x2="660" y2="70" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="180" y1="20" x2="180" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="300" y1="20" x2="300" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="420" y1="20" x2="420" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="540" y1="20" x2="540" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<path d="M60,220 Q120,168 180,155 Q240,135 300,120 Q360,106 420,95 Q480,78 540,64 Q600,52 660,40"
stroke="#F5F5F5" stroke-width="2.5" fill="none"/>
<path d="M60,220 L660,20" stroke="#484f58" stroke-width="1" stroke-dasharray="5,4" opacity="0.4"/>
<text x="600" y="50" fill="#484f58" font-size="9">Linear</text>
<circle cx="300" cy="120" r="5" fill="#F5F5F5" opacity="0.9"/>
<line x1="60" y1="120" x2="300" y2="120" stroke="#F5F5F5" stroke-width="0.5" stroke-dasharray="3,3" opacity="0.4"/>
<line x1="300" y1="120" x2="300" y2="220" stroke="#F5F5F5" stroke-width="0.5" stroke-dasharray="3,3" opacity="0.4"/>
<text x="310" y="114" fill="#F5F5F5" font-size="10">1.0 @ 5mA</text>
<text x="55" y="224" fill="#484f58" font-size="9" text-anchor="end">0</text>
<text x="55" y="174" fill="#484f58" font-size="9" text-anchor="end">0.5</text>
<text x="55" y="124" fill="#484f58" font-size="9" text-anchor="end">1.0</text>
<text x="55" y="74" fill="#484f58" font-size="9" text-anchor="end">1.5</text>
<text x="55" y="24" fill="#484f58" font-size="9" text-anchor="end">2.0</text>
<text x="12" y="124" fill="#484f58" font-size="9" text-anchor="middle" transform="rotate(-90,12,124)">Relative Brightness</text>
<text x="60" y="255" fill="#484f58" font-size="9" text-anchor="middle">0</text>
<text x="180" y="255" fill="#484f58" font-size="9" text-anchor="middle">10</text>
<text x="300" y="255" fill="#484f58" font-size="9" text-anchor="middle">20</text>
<text x="420" y="255" fill="#484f58" font-size="9" text-anchor="middle">30</text>
<text x="540" y="255" fill="#484f58" font-size="9" text-anchor="middle">40</text>
<text x="660" y="255" fill="#484f58" font-size="9" text-anchor="middle">50</text>
<text x="360" y="272" fill="#484f58" font-size="9" text-anchor="middle">Forward Current (mA)</text>
</svg>
<div class="chart-note">Brightness increases sublinearly with current. Diminishing returns at higher drive currents — optimize for efficiency at or below 5mA.</div>
</div>
</div>
<!-- Brightness vs Temperature -->
<div class="section">
<h2 class="section-title">Luminous Intensity vs. Temperature</h2>
<div class="chart-wrap">
<h3>Relative Brightness vs. Ambient Temperature (normalized at 25°C)</h3>
<svg id="brightness-temp-chart" width="100%" height="280" viewBox="0 0 700 280">
<rect x="60" y="20" width="600" height="200" fill="#0d1117" rx="4"/>
<line x1="60" y1="220" x2="660" y2="220" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="20" x2="60" y2="220" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="170" x2="660" y2="170" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="120" x2="660" y2="120" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="70" x2="660" y2="70" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="180" y1="20" x2="180" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="300" y1="20" x2="300" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="420" y1="20" x2="420" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="540" y1="20" x2="540" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<path d="M60,70 L180,95 L240,105 L300,112 L390,120 L480,134 L540,142 L600,148 L660,150"
stroke="#F5F5F5" stroke-width="2.5" fill="none"/>
<circle cx="390" cy="120" r="5" fill="#F5F5F5" opacity="0.9"/>
<line x1="60" y1="120" x2="390" y2="120" stroke="#F5F5F5" stroke-width="0.5" stroke-dasharray="3,3" opacity="0.4"/>
<line x1="390" y1="120" x2="390" y2="220" stroke="#F5F5F5" stroke-width="0.5" stroke-dasharray="3,3" opacity="0.4"/>
<text x="400" y="114" fill="#F5F5F5" font-size="10">1.0 @ 25°C</text>
<text x="100" y="62" fill="#58a6ff" font-size="9">Brighter when cold</text>
<text x="570" y="165" fill="#f85149" font-size="9">Dimmer when hot</text>
<text x="55" y="224" fill="#484f58" font-size="9" text-anchor="end">0</text>
<text x="55" y="174" fill="#484f58" font-size="9" text-anchor="end">0.5</text>
<text x="55" y="124" fill="#484f58" font-size="9" text-anchor="end">1.0</text>
<text x="55" y="74" fill="#484f58" font-size="9" text-anchor="end">1.5</text>
<text x="55" y="24" fill="#484f58" font-size="9" text-anchor="end">2.0</text>
<text x="12" y="124" fill="#484f58" font-size="9" text-anchor="middle" transform="rotate(-90,12,124)">Relative Brightness</text>
<text x="60" y="255" fill="#484f58" font-size="9" text-anchor="middle">-30</text>
<text x="180" y="255" fill="#484f58" font-size="9" text-anchor="middle">-10</text>
<text x="300" y="255" fill="#484f58" font-size="9" text-anchor="middle">10</text>
<text x="390" y="255" fill="#484f58" font-size="9" text-anchor="middle">25</text>
<text x="540" y="255" fill="#484f58" font-size="9" text-anchor="middle">50</text>
<text x="660" y="255" fill="#484f58" font-size="9" text-anchor="middle">70</text>
<text x="360" y="272" fill="#484f58" font-size="9" text-anchor="middle">Ambient Temperature (°C)</text>
</svg>
<div class="chart-note">InGaN + phosphor LEDs lose brightness at elevated temperatures. At 70°C, expect ~30% reduction. Account for this in designs with wide temperature swings.</div>
</div>
</div>
<!-- Resistor Calculator -->
<div class="section">
<h2 class="section-title">LED Resistor Calculator</h2>
<div class="calc-card">
<h3>⚡ Series Resistor Selection</h3>
<div class="calc-inputs">
<div class="calc-field">
<label>Supply Voltage</label>
<input type="number" id="calc-vsupply" value="5.0" step="0.1" min="0">
<div class="unit">Volts</div>
</div>
<div class="calc-field">
<label>Desired Current</label>
<input type="number" id="calc-iled" value="5" step="1" min="0">
<div class="unit">Milliamps</div>
</div>
</div>
<div class="calc-results">
<div class="calc-result">
<div class="cr-label">Calculated Resistor</div>
<div class="cr-value" id="calc-r-exact">440 Ω</div>
<div class="cr-detail" id="calc-r-formula">R = (5.0V - 3.0V) / 5mA</div>
</div>
<div class="calc-result">
<div class="cr-label">Nearest E24 Value</div>
<div class="cr-value" id="calc-r-e24">430 Ω</div>
<div class="cr-detail" id="calc-r-actual">Actual If = 5.1mA</div>
</div>
<div class="calc-result">
<div class="cr-label">Resistor Power</div>
<div class="cr-value" id="calc-p-resistor">11.3 mW</div>
<div class="cr-detail" id="calc-p-r-detail">P = (V<sub>supply</sub> - V<sub>f</sub>) × I<sub>f</sub></div>
</div>
<div class="calc-result">
<div class="cr-label">LED Power</div>
<div class="cr-value" id="calc-p-led">14.3 mW</div>
<div class="cr-detail" id="calc-p-led-detail">P = V<sub>f</sub> × I<sub>f</sub> (max 75mW)</div>
</div>
</div>
<div class="calc-schematic">
<svg width="400" height="80" viewBox="0 0 400 80" style="max-width:100%">
<text x="20" y="38" fill="#e6edf3" font-size="11" font-family="JetBrains Mono,monospace" id="calc-svg-vsupply">5.0V</text>
<line x1="50" y1="35" x2="90" y2="35" stroke="#e6edf3" stroke-width="1.5"/>
<path d="M90,35 L100,25 L110,45 L120,25 L130,45 L140,25 L150,45 L160,35" stroke="#00b8b0" stroke-width="2" fill="none"/>
<text x="125" y="60" fill="#00b8b0" font-size="10" text-anchor="middle" font-family="JetBrains Mono,monospace" id="calc-svg-r">430Ω</text>
<line x1="160" y1="35" x2="210" y2="35" stroke="#e6edf3" stroke-width="1.5"/>
<polygon points="210,22 210,48 240,35" fill="none" stroke="#F5F5F5" stroke-width="2"/>
<line x1="240" y1="22" x2="240" y2="48" stroke="#F5F5F5" stroke-width="2"/>
<line x1="230" y1="18" x2="238" y2="10" stroke="#F5F5F5" stroke-width="1"/>
<line x1="235" y1="22" x2="243" y2="14" stroke="#F5F5F5" stroke-width="1"/>
<polygon points="238,10 234,13 237,14" fill="#F5F5F5"/>
<polygon points="243,14 239,17 242,18" fill="#F5F5F5"/>
<text x="225" y="65" fill="#F5F5F5" font-size="10" text-anchor="middle" font-family="JetBrains Mono,monospace">LED</text>
<line x1="240" y1="35" x2="300" y2="35" stroke="#e6edf3" stroke-width="1.5"/>
<line x1="300" y1="28" x2="300" y2="42" stroke="#e6edf3" stroke-width="1.5"/>
<line x1="290" y1="42" x2="310" y2="42" stroke="#e6edf3" stroke-width="1.5"/>
<line x1="294" y1="47" x2="306" y2="47" stroke="#e6edf3" stroke-width="1.2"/>
<line x1="297" y1="52" x2="303" y2="52" stroke="#e6edf3" stroke-width="0.8"/>
<text x="320" y="42" fill="#8b949e" font-size="10" font-family="JetBrains Mono,monospace">GND</text>
<text x="180" y="26" fill="#8b949e" font-size="9" text-anchor="middle" font-family="JetBrains Mono,monospace" id="calc-svg-if">5mA</text>
<line x1="168" y1="30" x2="192" y2="30" stroke="#8b949e" stroke-width="0.5"/>
<polygon points="192,30 187,27 187,33" fill="#8b949e"/>
</svg>
</div>
</div>
</div>
<!-- Environmental -->
<div class="section">
<h2 class="section-title">Environmental & Handling</h2>
<div class="env-grid">
<div class="env-card">
<div class="env-name">ESD Sensitivity</div>
<div class="env-spec">InGaN — ESD precautions required</div>
<div class="env-detail">Use grounded wrist straps & ESD-safe tools</div>
</div>
<div class="env-card">
<div class="env-name">Operating Temperature</div>
<div class="env-spec">Continuous operation range</div>
<div class="env-detail">−30°C to +85°C</div>
</div>
<div class="env-card">
<div class="env-name">Storage Temperature</div>
<div class="env-spec">Unbiased storage</div>
<div class="env-detail">−40°C to +90°C</div>
</div>
<div class="env-card">
<div class="env-name">Moisture Sensitivity</div>
<div class="env-spec">MSL noted in packaging</div>
<div class="env-detail">Follow J-STD-020 bake requirements</div>
</div>
</div>
</div>
<!-- Symbol, Footprint & 3D View -->
<div class="section">
<h2 class="section-title">Symbol, Footprint & 3D Model</h2>
<div class="grid-2" style="margin-bottom:12px">
<!-- Interactive SymView -->
<div class="card" style="padding:0;overflow:hidden">
<div style="font-size:12px;font-weight:500;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-dim);padding:12px 16px 0">Schematic Symbol</div>
<iframe src="IN-S63BT5UW-symview.html" style="width:100%;height:340px;border:none;display:block" allow="fullscreen"></iframe>
</div>
<!-- Interactive FpView -->
<div class="card" style="padding:0;overflow:hidden">
<div style="font-size:12px;font-weight:500;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-dim);padding:12px 16px 0">Footprint (0603)</div>
<iframe src="IN-S63BT5UW-fpview.html" style="width:100%;height:340px;border:none;display:block" allow="fullscreen"></iframe>
</div>
</div>
<!-- 3D Model -->
<div class="card" style="text-align:center;margin-bottom:12px">
<div style="font-size:12px;font-weight:500;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-dim);margin-bottom:12px">3D Model (interactive)</div>
<canvas id="viewer3d" width="600" height="300" style="width:100%;height:300px;border-radius:4px;cursor:grab"></canvas>
<div style="font-size:10px;color:var(--text-dim);margin-top:6px">Click & drag to rotate · Scroll to zoom</div>
</div>
<!-- Download / Export Bar -->
<div class="card" style="display:flex;align-items:center;gap:10px;flex-wrap:wrap">
<span style="font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px">Export:</span>
<a class="dl-btn" href="https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/in-s63bt5uw/IN-S63BT5UW.kicad_sym" download>KiCad Symbol (.kicad_sym)</a>
<a class="dl-btn" href="https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/in-s63bt5uw/IN-S63BT5UW.kicad_mod" download>KiCad Footprint (.kicad_mod)</a>
<a class="dl-btn" href="https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/in-s63bt5uw/IN-S63BT5UW.lbr" download>Fusion 360 (.lbr)</a>
<a class="dl-btn" href="https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/in-s63bt5uw/IN-S63BT5UW.step" download>3D Model (.step)</a>
</div>
</div>
<!-- Documents -->
<div class="section">
<h2 class="section-title">Documents</h2>
<div class="card">
<table class="detail-table">
<tr><td>Datasheet</td><td><a href="http://www.inolux-corp.com/datasheet/SMDLED/Mono%20Color%20Top%20View/IN-S63BT%20Series.pdf" target="_blank">IN-S63BT Series (PDF) →</a></td></tr>
<tr><td>Series</td><td>IN-S63BT</td></tr>
<tr><td>Manufacturer</td><td>Inolux Corporation</td></tr>
</table>
</div>
</div>
<div class="source">
IN-S63BT5UW characterization · Data from Inolux IN-S63BT Series datasheet · 2026-06-03
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/examples/js/pmrem/PMREMGenerator.js"></script>
<script>
(function() {
// ==================== 3D Viewer — IN-S63BT5UW (0603 LED, white) ====================
var canvas = document.getElementById('viewer3d');
if (canvas && window.THREE) {
var scene = new THREE.Scene();
var renderer = new THREE.WebGLRenderer({ canvas: canvas, antialias: true, alpha: true, logarithmicDepthBuffer: true });
renderer.setSize(canvas.width, canvas.height);
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 1.2;
renderer.physicallyCorrectLights = true;
canvas.style.background = 'linear-gradient(180deg, #5a6b7e 0%, #2a3340 100%)';
var camera = new THREE.PerspectiveCamera(35, canvas.width / canvas.height, 0.01, 1000);
var pmremGen = new THREE.PMREMGenerator(renderer);
pmremGen.compileEquirectangularShader();
var envScene = new THREE.Scene();
envScene.background = new THREE.Color(0x3a4550);
var envLight1 = new THREE.DirectionalLight(0xffffff, 2);
envLight1.position.set(1, 3, 2); envScene.add(envLight1);
var envLight2 = new THREE.DirectionalLight(0x8899bb, 1);
envLight2.position.set(-2, 1, -1); envScene.add(envLight2);
var envRT = pmremGen.fromScene(envScene, 0.04);
scene.environment = envRT.texture;
scene.add(new THREE.HemisphereLight(0xe6edf3, 0xb3a699, 0.5));
var keyLight = new THREE.DirectionalLight(0xffffff, 1.5);
keyLight.position.set(2, 5, 3); scene.add(keyLight);
var fillLight = new THREE.DirectionalLight(0x8899aa, 0.5);
fillLight.position.set(-3, 2, -2); scene.add(fillLight);
var rimLight = new THREE.DirectionalLight(parseInt('#F5F5F5'.slice(1), 16), 0.4);
rimLight.position.set(0, -1, 3); scene.add(rimLight);
var S = 1.5; // 0603 is bigger than 0402 so scale less
var bodyW = 1.6, bodyD = 0.8, bodyH = 0.3;
var lensH = 0.08;
var termW = 0.25;
var bodyMat = new THREE.MeshStandardMaterial({ color: 0x2a2018, metalness: 0.0, roughness: 0.4 });
var lensMat = new THREE.MeshStandardMaterial({
color: parseInt('#F5F5F5'.slice(1), 16), metalness: 0.0, roughness: 0.15,
transparent: true, opacity: 0.55,
emissive: parseInt('#D0D0D0'.slice(1), 16), emissiveIntensity: 0.3
});
var termMat = new THREE.MeshStandardMaterial({ color: 0xc8ccd1, metalness: 1.0, roughness: 0.25 });
var padMat = new THREE.MeshStandardMaterial({ color: 0xc9a04c, metalness: 1.0, roughness: 0.22 });
var pcbMat = new THREE.MeshStandardMaterial({ color: 0x0a2a0a, metalness: 0.0, roughness: 0.6 });
var cathodeMat = new THREE.MeshStandardMaterial({ color: parseInt('#F5F5F5'.slice(1), 16), emissive: parseInt('#D0D0D0'.slice(1), 16), emissiveIntensity: 0.5, metalness: 0.0, roughness: 0.5 });
var innerW = bodyW - termW * 2 + 0.02;
var body = new THREE.Mesh(new THREE.BoxGeometry(innerW*S, bodyH*S, bodyD*S), bodyMat);
body.position.y = bodyH*S/2; scene.add(body);
var lens = new THREE.Mesh(new THREE.BoxGeometry(bodyW*0.85*S, lensH*S, bodyD*0.85*S), lensMat);
lens.position.y = (bodyH + lensH/2)*S; scene.add(lens);
function makeTerminal(xSign) {
var group = new THREE.Group();
var front = new THREE.Mesh(new THREE.BoxGeometry(termW*S, bodyH*S, bodyD*S*0.99), termMat);
front.position.set(xSign*(bodyW/2 - termW/2)*S, bodyH*S/2, 0);
group.add(front);
var bot = new THREE.Mesh(new THREE.BoxGeometry((termW+0.03)*S, 0.04*S, bodyD*S*0.99), termMat);
bot.position.set(xSign*(bodyW/2 - termW/2)*S, 0.02*S, 0);
group.add(bot);
return group;
}
scene.add(makeTerminal(-1));
scene.add(makeTerminal(1));
var cathMark = new THREE.Mesh(new THREE.BoxGeometry(0.02*S, 0.02*S, bodyD*0.7*S), cathodeMat);
cathMark.position.set(0.4*S, (bodyH + lensH + 0.02)*S, 0); scene.add(cathMark);
var pcb = new THREE.Mesh(new THREE.BoxGeometry(10*S, 0.08*S, 8*S), pcbMat);
pcb.position.y = -0.04*S; scene.add(pcb);
var pad1 = new THREE.Mesh(new THREE.BoxGeometry(0.7*S, 0.025*S, 0.7*S), padMat);
pad1.position.set(-0.35*S, 0.005*S, 0); scene.add(pad1);
var pad2 = new THREE.Mesh(new THREE.BoxGeometry(0.7*S, 0.025*S, 0.7*S), padMat);
pad2.position.set(0.35*S, 0.005*S, 0); scene.add(pad2);
var gridMat2 = new THREE.LineBasicMaterial({ color: 0x0d3d0d, transparent: true, opacity: 0.3 });
for (var i = -8; i <= 8; i++) {
var pts1 = [new THREE.Vector3(i*0.4*S, 0.045*S, -4*S), new THREE.Vector3(i*0.4*S, 0.045*S, 4*S)];
scene.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints(pts1), gridMat2));
var pts2 = [new THREE.Vector3(-4*S, 0.045*S, i*0.4*S), new THREE.Vector3(4*S, 0.045*S, i*0.4*S)];
scene.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints(pts2), gridMat2));
}
var isDragging = false, prevX = 0, prevY = 0;
var theta = Math.PI/4, phi = Math.PI/5.5, radius = 5.0;
var target = new THREE.Vector3(0, 0.3, 0);
function updateCamera() {
camera.position.x = radius * Math.sin(theta) * Math.cos(phi);
camera.position.y = radius * Math.sin(phi) + target.y;
camera.position.z = radius * Math.cos(theta) * Math.cos(phi);
camera.lookAt(target);
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theta -= (e.clientX - prevX) * 0.008;
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radius = Math.max(2, Math.min(12, radius + e.deltaY * 0.004));
updateCamera();
}, { passive: false });
function animate() { requestAnimationFrame(animate); renderer.render(scene, camera); }
animate();
}
// ==================== Resistor Calculator ====================
var VF_TYP = 3.0;
var E24 = [10,11,12,13,15,16,18,20,22,24,27,30,33,36,39,43,47,51,56,62,68,75,82,91];
function nearestE24(val) {
if (val <= 0) return 0;
var decade = 1;
while (val >= 100) { val /= 10; decade *= 10; }
while (val < 10) { val *= 10; decade /= 10; }
var best = E24[0], bestDist = Math.abs(val - E24[0]);
for (var i = 1; i < E24.length; i++) {
var d = Math.abs(val - E24[i]);
if (d < bestDist) { bestDist = d; best = E24[i]; }
}
return best * decade;
}
function formatResistance(r) {
if (r >= 1e6) return (r/1e6).toFixed(1) + ' MΩ';
if (r >= 1e3) return (r/1e3).toFixed(0) + ' kΩ';
if (r >= 100) return r.toFixed(0) + ' Ω';
if (r >= 10) return r.toFixed(1) + ' Ω';
return r.toFixed(2) + ' Ω';
}
function updateCalculator() {
var vSupply = parseFloat(document.getElementById('calc-vsupply').value) || 0;
var iLed = parseFloat(document.getElementById('calc-iled').value) || 0;
var iLedA = iLed / 1000;
var vDrop = vSupply - VF_TYP;
var rExact = vDrop > 0 && iLedA > 0 ? vDrop / iLedA : 0;
var rE24 = nearestE24(rExact);
var iActual = rE24 > 0 ? vDrop / rE24 : 0;
var pResistor = vDrop * iActual;
var pLed = VF_TYP * iActual;
document.getElementById('calc-r-exact').innerHTML = rExact > 0 ? formatResistance(rExact) : '—';
document.getElementById('calc-r-formula').textContent = 'R = (' + vSupply.toFixed(1) + 'V - ' + VF_TYP + 'V) / ' + iLed.toFixed(0) + 'mA';
document.getElementById('calc-r-e24').innerHTML = rE24 > 0 ? formatResistance(rE24) : '—';
document.getElementById('calc-r-actual').textContent = iActual > 0 ? 'Actual If = ' + (iActual * 1000).toFixed(1) + 'mA' : '';
document.getElementById('calc-p-resistor').textContent = pResistor > 0 ? (pResistor * 1000).toFixed(1) + ' mW' : '—';
document.getElementById('calc-p-led').textContent = pLed > 0 ? (pLed * 1000).toFixed(1) + ' mW' : '—';
var svgVs = document.getElementById('calc-svg-vsupply');
if (svgVs) svgVs.textContent = vSupply.toFixed(1) + 'V';
var svgR = document.getElementById('calc-svg-r');
if (svgR) svgR.textContent = rE24 > 0 ? formatResistance(rE24) : '—';
var svgIf = document.getElementById('calc-svg-if');
if (svgIf) svgIf.textContent = iActual > 0 ? (iActual * 1000).toFixed(1) + 'mA' : '';
var pLedEl = document.getElementById('calc-p-led');
if (pLed * 1000 > 75) { pLedEl.style.color = '#f85149'; } else { pLedEl.style.color = ''; }
var rExactEl = document.getElementById('calc-r-exact');
if (vDrop <= 0) { rExactEl.innerHTML = '<span style="color:#f85149">V<sub>supply</sub> too low</span>'; }
}
document.getElementById('calc-vsupply').addEventListener('input', updateCalculator);
document.getElementById('calc-iled').addEventListener('input', updateCalculator);
updateCalculator();
})();
</script>
</body>
</html>