component
CQ02WGF470KTCE
Public Unreviewedby AravK
Royalohm · Thick Film Chip Resistor · General Purpose
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<div class="header">
<div class="header-top">
<div class="brand">Adom</div>
<div class="vsep"></div>
<div class="crumb">Components › Resistors › 0402</div>
</div>
<h1>CQ02WGF470KTCE — <span class="val">4.7Ω</span></h1>
<div class="subtitle">Royalohm · Thick Film Chip Resistor · General Purpose</div>
<div class="tags">
<span class="tag pkg">0402</span>
<span class="tag mfr">Royalohm</span>
<span class="tag series">CQ02W</span>
<span class="tag rohs">RoHS</span>
<span class="tag app">Thick Film</span>
</div>
</div>
<div class="container">
<div class="section">
<div class="spec-cards">
<div class="spec-card highlight">
<div class="sc-label">Resistance</div>
<div class="sc-value">4.7Ω</div>
<div class="sc-detail">±1%</div>
</div>
<div class="spec-card">
<div class="sc-label">Power Rating</div>
<div class="sc-value">62.5mW</div>
<div class="sc-detail">1/16W @ 70°C</div>
</div>
<div class="spec-card">
<div class="sc-label">Tolerance</div>
<div class="sc-value">±1%</div>
<div class="sc-detail">F grade</div>
</div>
<div class="spec-card">
<div class="sc-label">TCR</div>
<div class="sc-value">±200</div>
<div class="sc-detail">ppm/°C</div>
</div>
<div class="spec-card">
<div class="sc-label">Max Voltage</div>
<div class="sc-value">50V</div>
<div class="sc-detail">working voltage</div>
</div>
<div class="spec-card">
<div class="sc-label">Mouser</div>
<div class="sc-value">—</div>
<div class="sc-detail">search for price</div>
</div>
</div>
</div>
<div class="grid-2">
<!-- Left column -->
<div>
<div class="section">
<h2 class="section-title">Electrical Characteristics</h2>
<div class="card">
<table class="detail-table">
<tr><td>Resistance</td><td>4.7Ω ±1%</td></tr>
<tr><td>Power Rating</td><td>62.5mW (1/16W)</td></tr>
<tr><td>Derate Above</td><td>70°C → 0W at 155°C</td></tr>
<tr><td>Max Working Voltage</td><td>50V</td></tr>
<tr><td>Max Overload Voltage</td><td>100V</td></tr>
<tr><td>Rated Current</td><td>1A</td></tr>
<tr><td>TCR</td><td>±200 ppm/°C</td></tr>
<tr><td>Insulation Resistance</td><td>≥1GΩ @ 100V</td></tr>
<tr><td>Dielectric Withstanding</td><td>100V (CR0402)</td></tr>
</table>
</div>
</div>
<div class="section">
<h2 class="section-title">Operating Conditions</h2>
<div class="card">
<table class="detail-table">
<tr><td>Operating Temp</td><td>−55°C to +155°C</td></tr>
<tr><td>Power Derating</td><td>100% to 70°C, 0% at 155°C</td></tr>
<tr><td>Solder Compatibility</td><td>Sn96.5/Ag3.0/Cu0.5</td></tr>
<tr><td>Solderability Test</td><td>245±3°C, 2±0.5s</td></tr>
<tr><td>Mass</td><td>∼0.001g</td></tr>
</table>
</div>
</div>
</div>
<!-- Right column -->
<div>
<div class="section">
<h2 class="section-title">Package & Dimensions</h2>
<div class="card">
<div class="pkg-drawing">
<svg width="100%" height="170" viewBox="0 0 480 170">
<!-- Top view centered at x=110 -->
<text x="110" y="14" fill="#8b949e" font-size="10" text-anchor="middle">Top View</text>
<rect x="50" y="22" width="120" height="60" rx="2" fill="#1c2128" stroke="#30363d" stroke-width="1.5"/>
<rect x="50" y="22" width="24" height="60" rx="1" fill="rgba(0,184,176,0.15)" stroke="#00b8b0" stroke-width="1"/>
<rect x="146" y="22" width="24" height="60" rx="1" fill="rgba(0,184,176,0.15)" stroke="#00b8b0" stroke-width="1"/>
<!-- No polarity mark — resistors are non-polarized -->
<!-- Width dim -->
<line x1="50" y1="94" x2="170" y2="94" stroke="#484f58" stroke-width="0.5"/>
<line x1="50" y1="90" x2="50" y2="98" stroke="#484f58" stroke-width="0.5"/>
<line x1="170" y1="90" x2="170" y2="98" stroke="#484f58" stroke-width="0.5"/>
<text x="110" y="110" fill="#e6edf3" font-size="10" text-anchor="middle">1.00 ± 0.10</text>
<!-- Depth dim -->
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<line x1="176" y1="22" x2="184" y2="22" stroke="#484f58" stroke-width="0.5"/>
<line x1="176" y1="82" x2="184" y2="82" stroke="#484f58" stroke-width="0.5"/>
<text x="195" y="56" fill="#e6edf3" font-size="10">0.50 ± 0.05</text>
<!-- Terminal width -->
<line x1="50" y1="122" x2="74" y2="122" stroke="#484f58" stroke-width="0.5" stroke-dasharray="2,2"/>
<text x="62" y="134" fill="#8b949e" font-size="9" text-anchor="middle">C: 0.20±0.10</text>
<!-- Side view centered at x=370 -->
<text x="370" y="14" fill="#8b949e" font-size="10" text-anchor="middle">Side View</text>
<rect x="310" y="46" width="120" height="28" rx="2" fill="#1c2128" stroke="#30363d" stroke-width="1.5"/>
<rect x="310" y="46" width="20" height="28" rx="1" fill="rgba(0,184,176,0.15)" stroke="#00b8b0" stroke-width="1"/>
<rect x="410" y="46" width="20" height="28" rx="1" fill="rgba(0,184,176,0.15)" stroke="#00b8b0" stroke-width="1"/>
<!-- Height dim -->
<line x1="440" y1="46" x2="440" y2="74" stroke="#484f58" stroke-width="0.5"/>
<line x1="436" y1="46" x2="444" y2="46" stroke="#484f58" stroke-width="0.5"/>
<line x1="436" y1="74" x2="444" y2="74" stroke="#484f58" stroke-width="0.5"/>
<text x="455" y="64" fill="#e6edf3" font-size="10">0.35 ± 0.05</text>
<!-- Physical specs -->
<text x="110" y="155" fill="#8b949e" font-size="10" text-anchor="middle">0402 (1005 metric)</text>
<text x="370" y="95" fill="#8b949e" font-size="10" text-anchor="middle">Mass: ~0.001g</text>
</svg>
</div>
</div>
</div>
<div class="section">
<h2 class="section-title">Recommended Land Pattern</h2>
<div class="card">
<table class="detail-table">
<tr><td>Pad Width</td><td>0.40mm</td></tr>
<tr><td>Pad Height</td><td>0.50mm</td></tr>
<tr><td>Pad-to-Pad (Reflow)</td><td>1.0mm</td></tr>
<tr><td>Solder Paste Thickness</td><td>100–130 µm</td></tr>
</table>
</div>
</div>
</div>
</div>
<div class="section">
<h2 class="section-title">Power Derating</h2>
<div class="chart-wrap">
<h3>Power Derating vs. Ambient Temperature (CR0402 — 62.5mW)</h3>
<svg id="derating-chart" width="100%" height="260" viewBox="0 0 700 260">
<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="178" x2="660" y2="178" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="55" y="182" fill="#484f58" font-size="9" text-anchor="end">25%</text>
<line x1="60" y1="137" x2="660" y2="137" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="55" y="141" fill="#484f58" font-size="9" text-anchor="end">50%</text>
<line x1="60" y1="95" x2="660" y2="95" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="55" y="99" fill="#484f58" font-size="9" text-anchor="end">75%</text>
<line x1="60" y1="53" x2="660" y2="53" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="55" y="57" fill="#484f58" font-size="9" text-anchor="end">100%</text>
<line x1="60" y1="20" x2="60" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="60" y="240" fill="#484f58" font-size="9" text-anchor="middle">-55°C</text>
<line x1="207" y1="20" x2="207" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="207" y="240" fill="#484f58" font-size="9" text-anchor="middle">0°C</text>
<line x1="273" y1="20" x2="273" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="273" y="240" fill="#484f58" font-size="9" text-anchor="middle">25°C</text>
<line x1="393" y1="20" x2="393" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="393" y="240" fill="#484f58" font-size="9" text-anchor="middle">70°C</text>
<line x1="473" y1="20" x2="473" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="473" y="240" fill="#484f58" font-size="9" text-anchor="middle">100°C</text>
<line x1="620" y1="20" x2="620" y2="220" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<text x="620" y="240" fill="#484f58" font-size="9" text-anchor="middle">155°C</text>
<!-- Derating line: flat at 100% from -55C to 70C, then linear to 0% at 155C -->
<path d="M60,53 L393,53 L620,220" stroke="#00b8b0" stroke-width="2.5" fill="none"/>
<!-- Fill under curve -->
<path d="M60,53 L393,53 L620,220 L620,220 L60,220 Z" fill="rgba(0,184,176,0.08)"/>
<!-- Key point dots -->
<circle cx="393" cy="53" r="4" fill="#00b8b0" opacity="0.8"/>
<circle cx="620" cy="220" r="4" fill="#f85149" opacity="0.8"/>
<!-- Annotations -->
<text x="393" y="43" fill="#00b8b0" font-size="10" text-anchor="middle">70°C / 100%</text>
<text x="620" y="210" fill="#f85149" font-size="10" text-anchor="middle">155°C / 0%</text>
<!-- Axis labels -->
<text x="12" y="124" fill="#484f58" font-size="9" text-anchor="middle" transform="rotate(-90,12,124)">Rated Power (%)</text>
<text x="360" y="255" fill="#484f58" font-size="9" text-anchor="middle">Ambient Temperature</text>
<!-- 0% label -->
<text x="55" y="224" fill="#484f58" font-size="9" text-anchor="end">0%</text>
</svg>
<div class="chart-note">Full rated power (62.5mW) up to 70°C ambient. Above 70°C, derate linearly to zero at 155°C. Formula: P = 62.5mW × (155 − T<sub>amb</sub>) / 85 for T > 70°C.</div>
</div>
</div>
<div class="section">
<h2 class="section-title">Reflow Soldering Profile</h2>
<div class="chart-wrap">
<h3>Lead-Free Reflow Profile (Royalohm CQ Series)</h3>
<svg id="reflow-chart" width="100%" height="260" viewBox="0 0 700 260">
<rect x="60" y="10" width="600" height="180" fill="#0d1117" rx="4"/>
<!-- Grid -->
<line x1="60" y1="190" x2="660" y2="190" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="10" x2="60" y2="190" stroke="#21262d" stroke-width="1"/>
<line x1="60" y1="145" x2="660" y2="145" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="90" x2="660" y2="90" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<line x1="60" y1="40" x2="660" y2="40" stroke="#21262d" stroke-width="0.5" stroke-dasharray="4,4"/>
<!-- Temperature profile (standard) -->
<!-- Ramp to 150C preheat, hold 60-120s, ramp to 220C zone, 60-90s above 220C, peak 255C -->
<path d="M80,185 L180,145 L300,145 L370,90 L420,30 L460,30 L500,90 L580,145 L660,185" stroke="#d29922" stroke-width="2.5" fill="none"/>
<!-- Limit profile (dashed, peak 260C) -->
<path d="M80,185 L180,145 L300,145 L360,80 L410,18 L470,18 L510,80 L580,145 L660,185" stroke="#f85149" stroke-width="1.5" fill="none" stroke-dasharray="5,4" opacity="0.6"/>
<!-- Zone annotations -->
<rect x="210" y="155" width="80" height="16" rx="3" fill="rgba(210,153,34,0.15)"/>
<text x="250" y="167" fill="#d29922" font-size="9" text-anchor="middle">Pre-heat</text>
<rect x="310" y="4" width="80" height="16" rx="3" fill="rgba(248,81,73,0.15)"/>
<text x="350" y="16" fill="#f85149" font-size="9" text-anchor="middle">Peak zone</text>
<!-- Temperature markers -->
<text x="55" y="148" fill="#484f58" font-size="9" text-anchor="end">150°C</text>
<text x="55" y="93" fill="#484f58" font-size="9" text-anchor="end">220°C</text>
<text x="55" y="33" fill="#484f58" font-size="9" text-anchor="end">255°C</text>
<!-- 260C limit line -->
<text x="480" y="15" fill="#f85149" font-size="9">260°C limit</text>
<line x1="60" y1="18" x2="660" y2="18" stroke="#f85149" stroke-width="0.5" stroke-dasharray="2,3" opacity="0.4"/>
<!-- Pre-heat duration bracket -->
<line x1="180" y1="195" x2="300" y2="195" stroke="#484f58" stroke-width="1"/>
<line x1="180" y1="191" x2="180" y2="199" stroke="#484f58" stroke-width="1"/>
<line x1="300" y1="191" x2="300" y2="199" stroke="#484f58" stroke-width="1"/>
<text x="240" y="207" fill="#8b949e" font-size="8" text-anchor="middle">60–120s preheat</text>
<!-- Above 220C bracket -->
<line x1="370" y1="95" x2="500" y2="95" stroke="#484f58" stroke-width="1"/>
<line x1="370" y1="91" x2="370" y2="99" stroke="#484f58" stroke-width="1"/>
<line x1="500" y1="91" x2="500" y2="99" stroke="#484f58" stroke-width="1"/>
<text x="435" y="107" fill="#8b949e" font-size="8" text-anchor="middle">60–90s >220°C</text>
<!-- Total time bracket -->
<line x1="80" y1="220" x2="660" y2="220" stroke="#484f58" stroke-width="0.5"/>
<line x1="80" y1="216" x2="80" y2="224" stroke="#484f58" stroke-width="0.5"/>
<line x1="660" y1="216" x2="660" y2="224" stroke="#484f58" stroke-width="0.5"/>
<!-- X axis time markers -->
<text x="80" y="234" fill="#484f58" font-size="8" text-anchor="middle">0s</text>
<text x="180" y="234" fill="#484f58" font-size="8" text-anchor="middle">~50s</text>
<text x="300" y="234" fill="#484f58" font-size="8" text-anchor="middle">~170s</text>
<text x="420" y="234" fill="#484f58" font-size="8" text-anchor="middle">~220s</text>
<text x="500" y="234" fill="#484f58" font-size="8" text-anchor="middle">~260s</text>
<text x="660" y="234" fill="#484f58" font-size="8" text-anchor="middle">~360s</text>
<!-- Legend -->
<line x1="250" y1="248" x2="270" y2="248" stroke="#d29922" stroke-width="2"/>
<text x="275" y="252" fill="#8b949e" font-size="9">Standard</text>
<line x1="360" y1="248" x2="380" y2="248" stroke="#f85149" stroke-width="1.5" stroke-dasharray="4,3"/>
<text x="385" y="252" fill="#8b949e" font-size="9">Limit</text>
</svg>
<table class="profile-table">
<thead><tr><th>Phase</th><th>Standard</th><th>Limit</th></tr></thead>
<tbody>
<tr><td>Ramp Up</td><td>3°C/s max</td><td>Same</td></tr>
<tr><td>Pre-heat</td><td>150°C, 60–120s</td><td>Same</td></tr>
<tr><td>Reflow Zone</td><td>190–220°C</td><td>60–90s above 220°C</td></tr>
<tr><td>Peak Temperature</td><td>255°C, ≤20s</td><td>260°C max</td></tr>
<tr><td>Ramp Down</td><td>6°C/s max</td><td>Same</td></tr>
</tbody>
</table>
</div>
</div>
<div class="section">
<h2 class="section-title">Environmental & Reliability</h2>
<div class="env-grid">
<div class="env-card">
<div class="env-name">Short Time Overload</div>
<div class="env-spec">ΔR ≤ ±(1.0% + 0.05Ω)</div>
<div class="env-detail">2.5× rated voltage, 5s</div>
</div>
<div class="env-card">
<div class="env-name">Load Life</div>
<div class="env-spec">ΔR ≤ ±(1.0% + 0.1Ω)</div>
<div class="env-detail">1000h @ 70°C, 1.5h ON / 0.5h OFF</div>
</div>
<div class="env-card">
<div class="env-name">Load Life (Humidity)</div>
<div class="env-spec">ΔR ≤ ±(1.0% + 0.05Ω)</div>
<div class="env-detail">1000h @ 85°C, 85% RH</div>
</div>
<div class="env-card">
<div class="env-name">Rapid Temp Change</div>
<div class="env-spec">ΔR ≤ ±(1.0% + 0.05Ω)</div>
<div class="env-detail">−55°C / +155°C, 100 cycles</div>
</div>
<div class="env-card">
<div class="env-name">Solder Heat</div>
<div class="env-spec">ΔR ≤ ±(1.0% + 0.05Ω)</div>
<div class="env-detail">260±5°C, 10±1s</div>
</div>
<div class="env-card">
<div class="env-name">Solderability</div>
<div class="env-spec">≥95% wetting</div>
<div class="env-detail">245±3°C, 2±0.5s, Sn96.5/Ag3.0/Cu0.5</div>
</div>
<div class="env-card">
<div class="env-name">Board Flex / Bending</div>
<div class="env-spec">ΔR ≤ ±(1.0% + 0.05Ω)</div>
<div class="env-detail">3mm deflection</div>
</div>
<div class="env-card">
<div class="env-name">Anti-Sulfurized (H₂S)</div>
<div class="env-spec">ΔR ≤ ±(1.0% + 0.1Ω)</div>
<div class="env-detail">H₂S 3–5 ppm, 50 ± 2°C, 91–93% RH, 1000h</div>
</div>
<div class="env-card">
<div class="env-name">Anti-Sulfurized (ASTM B-809-95)</div>
<div class="env-spec">ΔR ≤ ±(1% + 0.05Ω)</div>
<div class="env-detail">Sulfur saturated vapor, 50 ± 2°C, 85–90% RH, 1000h</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="CQ02WGF470KTCE-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 (0402) — with solder jetting layout</div>
<iframe src="CQ02WGF470KTCE-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/cq02wgf470ktce/CQ02WGF470KTCE.kicad_sym" download>KiCad Symbol (.kicad_sym)</a>
<a class="dl-btn" href="https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/cq02wgf470ktce/CQ02WGF470KTCE.kicad_mod" download>KiCad Footprint (.kicad_mod)</a>
<a class="dl-btn" href="https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/cq02wgf470ktce/CQ02WGF470KTCE.lbr" download>Fusion 360 (.lbr)</a>
<a class="dl-btn" href="https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/cq02wgf470ktce/CQ02WGF470KTCE.step" download>3D Model (.step)</a>
</div>
</div>
<div class="section">
<h2 class="section-title">Pricing & Availability</h2>
<div class="vendor-cards">
<div class="vendor-card recommended">
<div class="vc-name mouser">Mouser Electronics</div>
<div class="vc-price">—</div>
<div class="vc-detail">Search for current pricing</div>
<div class="vc-detail">PN: CQ02WGF470KTCE</div>
<a class="vc-link" href="https://www.mouser.com/c/?q=CQ02WGF470KTCE" target="_blank">Search on Mouser →</a>
</div>
<div class="vendor-card">
<div class="vc-name digikey">DigiKey</div>
<div class="vc-price">—</div>
<div class="vc-detail">Search for current pricing</div>
<a class="vc-link" href="https://www.digikey.com/en/products/result?keywords=CQ02WGF470KTCE" target="_blank">Search on DigiKey →</a>
</div>
<div class="vendor-card">
<div class="vc-name jlcpcb">JLCPCB / LCSC</div>
<div class="vc-price">—</div>
<div class="vc-detail">Search for availability</div>
<a class="vc-link" href="https://www.lcsc.com/search?q=CQ02WGF470KTCE" target="_blank">Search on LCSC →</a>
</div>
</div>
<div class="chart-note" style="margin-top:8px"><strong>Adom Basic Part</strong> — Always on hand, no shipping fee.</div>
</div>
<div class="section">
<h2 class="section-title">Documents</h2>
<div class="card">
<table class="detail-table">
<tr><td>Datasheet</td><td><button class="copy-btn" title="Copy link to clipboard" id="ds-copy-btn">⎘</button>
<script>document.getElementById('ds-copy-btn').addEventListener('click',function(){var t=document.createElement('textarea');t.value='https://www.royalohm.com/pdf/product/thick_film_chip_resistors.pdf';document.body.appendChild(t);t.select();document.execCommand('copy');document.body.removeChild(t);this.textContent='Copied!';var b=this;setTimeout(function(){b.innerHTML='⎘'},1500)});</script> <a href="https://www.royalohm.com/pdf/product/thick_film_chip_resistors.pdf" target="_blank">Royalohm Thick Film Chip Resistors (PDF) →</a></td></tr>
<tr><td>Series</td><td>CQ02W</td></tr>
<tr><td>Manufacturer</td><td>Royalohm</td></tr>
<tr><td>Inventory Source</td><td><a href="https://inventory-2w8z8d9ojzzl.adom.cloud" target="_blank">Adom Parts Inventory →</a></td></tr>
</table>
</div>
</div>
<!-- Molecule -->
<div class="section">
<h2 class="section-title">Molecule — Single-Passive Board</h2>
<div class="card" style="padding:0;overflow:hidden;border-radius:8px">
<div style="font-size:12px;font-weight:500;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-dim);padding:12px 16px 0">Interactive 3D Board Viewer</div>
<iframe src="https://wiki-ufypy5dpx93o.adom.cloud/static/libraries/cq02wgf470ktce/tsci-viewer/molecule-viewer/index.html"
style="width:100%;height:500px;border:none;border-radius:0 0 8px 8px;display:block"
allow="fullscreen"></iframe>
</div>
<div style="font-size:11px;color:var(--text-dim);margin-top:8px;text-align:center">
Orbit: click & drag · Zoom: scroll · Inspect: click a component · X-ray: toggle in toolbar
</div>
</div>
<div class="source">
CQ02WGF470KTCE characterization · Data from Royalohm datasheet (CQ02W series) + adom-parts-search · 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() {
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renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
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renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 1.2;
renderer.physicallyCorrectLights = true;
canvas.style.background = 'linear-gradient(180deg, #5a6b7e 0%, #2a3340 100%)';
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const pmremGen = new THREE.PMREMGenerator(renderer);
pmremGen.compileEquirectangularShader();
const envScene = new THREE.Scene();
envScene.background = new THREE.Color(0x3a4550);
const envLight1 = new THREE.DirectionalLight(0xffffff, 2);
envLight1.position.set(1, 3, 2);
envScene.add(envLight1);
const envLight2 = new THREE.DirectionalLight(0x8899bb, 1);
envLight2.position.set(-2, 1, -1);
envScene.add(envLight2);
const envRT = pmremGen.fromScene(envScene, 0.04);
scene.environment = envRT.texture;
const hemi = new THREE.HemisphereLight(0xe6edf3, 0xb3a699, 0.5);
scene.add(hemi);
const keyLight = new THREE.DirectionalLight(0xffffff, 1.5);
keyLight.position.set(2, 5, 3);
scene.add(keyLight);
const fillLight = new THREE.DirectionalLight(0x8899aa, 0.5);
fillLight.position.set(-3, 2, -2);
scene.add(fillLight);
const rimLight = new THREE.DirectionalLight(0x00b8b0, 0.3);
rimLight.position.set(0, -1, 3);
scene.add(rimLight);
const S = 2.5; // Scale factor (0402 is tiny, so scale up more)
const bodyMat = new THREE.MeshStandardMaterial({ color: 0x1a1a2e, metalness: 0.0, roughness: 0.45 });
const termMat = new THREE.MeshStandardMaterial({ color: 0xc8ccd1, metalness: 1.0, roughness: 0.25,
polygonOffset: true, polygonOffsetFactor: -1, polygonOffsetUnits: -1 });
const padMat = new THREE.MeshStandardMaterial({ color: 0xc9a04c, metalness: 1.0, roughness: 0.22 });
const pcbMat = new THREE.MeshStandardMaterial({ color: 0x0a2a0a, metalness: 0.0, roughness: 0.6 });
// Body: 1.0 x 0.5 x 0.32 mm
const bodyW = 1.0, bodyD = 0.5, bodyH = 0.32;
const termW = 0.20;
const innerW = bodyW - termW * 2 + 0.02;
const body = new THREE.Mesh(new THREE.BoxGeometry(innerW*S, bodyH*S, bodyD*S), bodyMat);
body.position.y = bodyH*S/2;
scene.add(body);
// Terminals — no polarity mark
function makeTerminal(xSign) {
const group = new THREE.Group();
const 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);
const bot = new THREE.Mesh(new THREE.BoxGeometry((termW+0.04)*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);
const top = new THREE.Mesh(new THREE.BoxGeometry((termW+0.04)*S, 0.04*S, bodyD*S*0.99), termMat);
top.position.set(xSign*(bodyW/2 - termW/2)*S, (bodyH-0.02)*S, 0);
group.add(top);
return group;
}
scene.add(makeTerminal(-1));
scene.add(makeTerminal(1));
// PCB
const pcb = new THREE.Mesh(new THREE.BoxGeometry(12*S, 0.08*S, 10*S), pcbMat);
pcb.position.y = -0.04*S;
scene.add(pcb);
// Gold ENIG pads
const pad1 = new THREE.Mesh(new THREE.BoxGeometry(0.4*S, 0.025*S, 0.5*S), padMat);
pad1.position.set(-0.4*S, 0.005*S, 0);
scene.add(pad1);
const pad2 = new THREE.Mesh(new THREE.BoxGeometry(0.4*S, 0.025*S, 0.5*S), padMat);
pad2.position.set(0.4*S, 0.005*S, 0);
scene.add(pad2);
// Grid
const gridMat2 = new THREE.LineBasicMaterial({ color: 0x0d3d0d, transparent: true, opacity: 0.3 });
for (let i = -10; i <= 10; i++) {
const pts1 = [new THREE.Vector3(i*0.5*S, 0.045*S, -5*S), new THREE.Vector3(i*0.5*S, 0.045*S, 5*S)];
scene.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints(pts1), gridMat2));
const pts2 = [new THREE.Vector3(-5*S, 0.045*S, i*0.5*S), new THREE.Vector3(5*S, 0.045*S, i*0.5*S)];
scene.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints(pts2), gridMat2));
}
// Camera orbit
let isDragging = false, prevX = 0, prevY = 0;
let theta = Math.PI/4, phi = Math.PI/5.5, radius = 4.5;
const 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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canvas.addEventListener('wheel', e => {
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radius = Math.max(2, Math.min(10, radius + e.deltaY * 0.004));
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animate();
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(function() {
const svg = document.getElementById('derating-chart');
if (!svg) return;
const ns = 'http://www.w3.org/2000/svg';
// Key points on the derating curve: temp -> power %
// -55C=100%, 70C=100%, 155C=0%
function tempToX(t) { return 60 + (t - (-55)) / (170 - (-55)) * 600; }
function pwrToY(pct) { return 220 - (pct / 120) * 200; }
function getPower(t) {
if (t <= 70) return 100;
if (t >= 155) return 0;
return 100 * (155 - t) / 85;
}
const dot = document.createElementNS(ns, 'circle');
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dot.setAttribute('stroke-width', '2');
dot.style.display = 'none';
dot.style.pointerEvents = 'none';
svg.appendChild(dot);
const vLine = document.createElementNS(ns, 'line');
vLine.setAttribute('stroke', '#00b8b0');
vLine.setAttribute('stroke-width', '0.5');
vLine.setAttribute('stroke-dasharray', '3,3');
vLine.setAttribute('opacity', '0.5');
vLine.style.display = 'none';
vLine.style.pointerEvents = 'none';
svg.appendChild(vLine);
const tipGroup = document.createElementNS(ns, 'g');
tipGroup.style.display = 'none';
tipGroup.style.pointerEvents = 'none';
const tipBg = document.createElementNS(ns, 'rect');
tipBg.setAttribute('rx', '4');
tipBg.setAttribute('fill', '#161b22');
tipBg.setAttribute('stroke', '#30363d');
tipBg.setAttribute('stroke-width', '1');
const tipLine1 = document.createElementNS(ns, 'text');
tipLine1.setAttribute('font-family', 'JetBrains Mono, monospace');
tipLine1.setAttribute('font-size', '10');
tipLine1.setAttribute('fill', '#e6edf3');
const tipLine2 = document.createElementNS(ns, 'text');
tipLine2.setAttribute('font-family', 'JetBrains Mono, monospace');
tipLine2.setAttribute('font-size', '10');
tipLine2.setAttribute('fill', '#00b8b0');
tipGroup.appendChild(tipBg);
tipGroup.appendChild(tipLine1);
tipGroup.appendChild(tipLine2);
svg.appendChild(tipGroup);
svg.addEventListener('mousemove', function(e) {
const pt = svg.createSVGPoint();
pt.x = e.clientX; pt.y = e.clientY;
const svgPt = pt.matrixTransform(svg.getScreenCTM().inverse());
const minX = tempToX(-55), maxX = tempToX(155);
if (svgPt.x < minX - 10 || svgPt.x > maxX + 10) {
dot.style.display = 'none'; tipGroup.style.display = 'none'; vLine.style.display = 'none';
return;
}
// Convert SVG x back to temperature
const temp = ((svgPt.x - 60) / 600) * (170 - (-55)) + (-55);
const clampedTemp = Math.max(-55, Math.min(155, temp));
const pwr = getPower(clampedTemp);
const cx = tempToX(clampedTemp);
const cy = pwrToY(pwr);
dot.setAttribute('cx', cx);
dot.setAttribute('cy', cy);
dot.style.display = '';
vLine.setAttribute('x1', cx); vLine.setAttribute('y1', cy);
vLine.setAttribute('x2', cx); vLine.setAttribute('y2', 220);
vLine.style.display = '';
const xLabel = clampedTemp.toFixed(0) + String.fromCharCode(176) + 'C';
const yLabel = 'Power: ' + pwr.toFixed(1) + '% (' + (pwr * 0.625).toFixed(1) + 'mW)';
tipLine1.textContent = xLabel;
tipLine2.textContent = yLabel;
const tipX = cx + 12, tipY = cy - 28;
const boxW = Math.max(xLabel.length, yLabel.length) * 7 + 16;
const boxH = 32;
const adjustedX = tipX + boxW > 660 ? cx - boxW - 12 : tipX;
const adjustedY = tipY < 10 ? cy + 12 : tipY;
tipBg.setAttribute('x', adjustedX); tipBg.setAttribute('y', adjustedY);
tipBg.setAttribute('width', boxW); tipBg.setAttribute('height', boxH);
tipLine1.setAttribute('x', adjustedX + 8); tipLine1.setAttribute('y', adjustedY + 13);
tipLine2.setAttribute('x', adjustedX + 8); tipLine2.setAttribute('y', adjustedY + 26);
tipGroup.style.display = '';
});
svg.addEventListener('mouseleave', function() {
dot.style.display = 'none'; tipGroup.style.display = 'none'; vLine.style.display = 'none';
});
})();
// Reflow chart tooltip
(function() {
const svg = document.getElementById('reflow-chart');
if (!svg) return;
const ns = 'http://www.w3.org/2000/svg';
const reflowStd = [
{sx:80, sy:185, vx:0, vy:25},
{sx:180, sy:145, vx:50, vy:150},
{sx:300, sy:145, vx:170, vy:150},
{sx:370, sy:90, vx:200, vy:220},
{sx:420, sy:30, vx:220, vy:255},
{sx:460, sy:30, vx:240, vy:255},
{sx:500, sy:90, vx:260, vy:220},
{sx:580, sy:145, vx:300, vy:150},
{sx:660, sy:185, vx:360, vy:25},
];
const reflowLim = [
{sx:80, sy:185, vx:0, vy:25},
{sx:180, sy:145, vx:50, vy:150},
{sx:300, sy:145, vx:170, vy:150},
{sx:360, sy:80, vx:195, vy:230},
{sx:410, sy:18, vx:215, vy:260},
{sx:470, sy:18, vx:240, vy:260},
{sx:510, sy:80, vx:260, vy:230},
{sx:580, sy:145, vx:300, vy:150},
{sx:660, sy:185, vx:360, vy:25},
];
const curves = [
{ data: reflowStd, color: '#d29922', label: 'Standard' },
{ data: reflowLim, color: '#f85149', label: 'Limit' },
];
let activeIdx = 0;
const dot = document.createElementNS(ns, 'circle');
dot.setAttribute('r', '5');
dot.setAttribute('stroke', '#0d1117');
dot.setAttribute('stroke-width', '2');
dot.style.display = 'none';
dot.style.pointerEvents = 'none';
svg.appendChild(dot);
const vLine = document.createElementNS(ns, 'line');
vLine.setAttribute('stroke-width', '0.5');
vLine.setAttribute('stroke-dasharray', '3,3');
vLine.setAttribute('opacity', '0.5');
vLine.style.display = 'none';
vLine.style.pointerEvents = 'none';
svg.appendChild(vLine);
const tipGroup = document.createElementNS(ns, 'g');
tipGroup.style.display = 'none';
tipGroup.style.pointerEvents = 'none';
const tipBg = document.createElementNS(ns, 'rect');
tipBg.setAttribute('rx', '4');
tipBg.setAttribute('fill', '#161b22');
tipBg.setAttribute('stroke', '#30363d');
tipBg.setAttribute('stroke-width', '1');
const tipLine1 = document.createElementNS(ns, 'text');
tipLine1.setAttribute('font-family', 'JetBrains Mono, monospace');
tipLine1.setAttribute('font-size', '10');
tipLine1.setAttribute('fill', '#e6edf3');
const tipLine2 = document.createElementNS(ns, 'text');
tipLine2.setAttribute('font-family', 'JetBrains Mono, monospace');
tipLine2.setAttribute('font-size', '10');
const tipLine3 = document.createElementNS(ns, 'text');
tipLine3.setAttribute('font-family', 'JetBrains Mono, monospace');
tipLine3.setAttribute('font-size', '9');
tipLine3.setAttribute('fill', '#484f58');
tipGroup.appendChild(tipBg);
tipGroup.appendChild(tipLine1);
tipGroup.appendChild(tipLine2);
tipGroup.appendChild(tipLine3);
svg.appendChild(tipGroup);
function setActive(idx) {
activeIdx = idx;
const c = curves[idx];
dot.setAttribute('fill', c.color);
vLine.setAttribute('stroke', c.color);
tipLine2.setAttribute('fill', c.color);
}
setActive(0);
function lerp(pts, svgX) {
if (svgX <= pts[0].sx) return pts[0];
if (svgX >= pts[pts.length-1].sx) return pts[pts.length-1];
for (let i = 0; i < pts.length - 1; i++) {
if (svgX >= pts[i].sx && svgX <= pts[i+1].sx) {
const t = (svgX - pts[i].sx) / (pts[i+1].sx - pts[i].sx);
return {
sx: svgX,
sy: pts[i].sy + t * (pts[i+1].sy - pts[i].sy),
vx: pts[i].vx + t * (pts[i+1].vx - pts[i].vx),
vy: pts[i].vy + t * (pts[i+1].vy - pts[i].vy),
};
}
}
return pts[0];
}
svg.addEventListener('click', function() { setActive((activeIdx + 1) % curves.length); });
svg.addEventListener('mousemove', function(e) {
const pt = svg.createSVGPoint();
pt.x = e.clientX; pt.y = e.clientY;
const svgPt = pt.matrixTransform(svg.getScreenCTM().inverse());
const c = curves[activeIdx];
const minX = c.data[0].sx, maxX = c.data[c.data.length-1].sx;
if (svgPt.x < minX - 10 || svgPt.x > maxX + 10) {
dot.style.display = 'none'; tipGroup.style.display = 'none'; vLine.style.display = 'none';
return;
}
const p = lerp(c.data, svgPt.x);
dot.setAttribute('cx', p.sx); dot.setAttribute('cy', p.sy); dot.style.display = '';
vLine.setAttribute('x1', p.sx); vLine.setAttribute('y1', p.sy);
vLine.setAttribute('x2', p.sx); vLine.setAttribute('y2', 195); vLine.style.display = '';
const xLabel = p.vx.toFixed(0) + 's';
const yLabel = 'Temp = ' + p.vy.toFixed(0) + String.fromCharCode(176) + 'C';
const curveLabel = 'Click to switch ' + String.fromCharCode(8226) + ' ' + c.label;
tipLine1.textContent = xLabel;
tipLine2.textContent = yLabel;
tipLine3.textContent = curveLabel;
const tipX = p.sx + 12, tipY = p.sy - 38;
const boxW = Math.max(xLabel.length, yLabel.length, curveLabel.length) * 6.5 + 16;
const boxH = 44;
const adjustedX = tipX + boxW > 660 ? p.sx - boxW - 12 : tipX;
const adjustedY = tipY < 10 ? p.sy + 12 : tipY;
tipBg.setAttribute('x', adjustedX); tipBg.setAttribute('y', adjustedY);
tipBg.setAttribute('width', boxW); tipBg.setAttribute('height', boxH);
tipLine1.setAttribute('x', adjustedX + 8); tipLine1.setAttribute('y', adjustedY + 13);
tipLine2.setAttribute('x', adjustedX + 8); tipLine2.setAttribute('y', adjustedY + 26);
tipLine3.setAttribute('x', adjustedX + 8); tipLine3.setAttribute('y', adjustedY + 39);
tipGroup.style.display = '';
});
svg.addEventListener('mouseleave', function() {
dot.style.display = 'none'; tipGroup.style.display = 'none'; vLine.style.display = 'none';
});
svg.style.cursor = 'pointer';
})();
})();
</script>
</div>
</body>
</html>