component
SZBZX84C18LT3G
Public Made by Adomby adom
onsemi Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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|---|---|
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| viewers | 1d ago |
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| page.json | 1d ago |
| README.md | 1d ago |
| szbzx84c18lt3g-etched.glb | 1d ago |
| szbzx84c18lt3g-etched.step | 1d ago |
| szbzx84c18lt3g-hero.glb | 1d ago |
| szbzx84c18lt3g-hero.overlay.json | 1d ago |
| szbzx84c18lt3g.glb | 1d ago |
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SZBZX84C18LT3G
onsemi · Zener Diodes · SOT-23
SZBZX84C18LT3G from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Anode | passive | Anode of the Zener diode (SOT-23 CASE 318 Style 8); the Zener reverse voltage is measured with the cathode positive relative to this pin, and VF is 0.90 V max at IF = 10 mA. |
| 2 | NC | unconnected | No connection (SOT-23 CASE 318 Style 8 pin 2). |
| 3 | Cathode | passive | Cathode of the Zener diode (SOT-23 CASE 318 Style 8), indicated by the polarity band; VZ is 16.8 V min / 18 V nom / 19.1 V max at IZT = 5 mA for the 18 V C-grade device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener Voltage VZ1 | VZ1 | 16.8 | 18 | 19.1 | V | IZT1 = 5 mA, TA = 25°C | 3 |
| Zener Impedance ZZT1 | ZZT1 | 45 | Ω | IZT1 = 5 mA | 3 | ||
| Zener Voltage VZ2 | VZ2 | 16.7 | 19 | V | IZT2 = 1 mA | 3 | |
| Zener Impedance ZZT2 | ZZT2 | 225 | Ω | IZT2 = 1 mA | 3 | ||
| Zener Voltage VZ3 | VZ3 | 16.9 | 19.2 | V | IZT3 = 20 mA | 3 | |
| Zener Impedance ZZT3 | ZZT3 | 20 | Ω | IZT3 = 20 mA | 3 | ||
| Max Reverse Leakage Current | IR | 0.05 | µA | VR = 12.6 V | 3 | ||
| Reverse Voltage for leakage | VR | 12.6 | V | IR test | 3 | ||
| Temperature Coefficient of VZ | VZ | 12.4 | 16 | mV/k | IZT1 = 5 mA | 3 | |
| Capacitance | C | 100 | pF | VR = 0, f = 1 MHz | 3 | ||
| Forward Voltage | VF | 0.9 | V | IF = 10 mA | 2 | ||
| Total Power Dissipation on FR-5 Board | PD | 250 | mW | TA = 25°C, FR-5 board | 2 | ||
| Derating above 25°C (FR-5) | PD | 2 | mW/°C | Above 25°C, FR-5 board | 2 | ||
| Thermal Resistance Junction-to-Ambient (FR-5) | RθJA | 500 | °C/W | FR-5 board | 2 | ||
| Total Power Dissipation on Alumina Substrate | PD | 300 | mW | TA = 25°C, alumina substrate | 2 | ||
| Derating above 25°C (Alumina) | PD | 2.4 | mW/°C | Above 25°C, alumina substrate | 2 | ||
| Thermal Resistance Junction-to-Ambient (Alumina) | RθJA | 417 | °C/W | Alumina substrate | 2 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
SZBZX84C18LT3G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
szbzx84c18lt3g-etched.step/szbzx84c18lt3g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);szbzx84c18lt3g.step/szbzx84c18lt3g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (8 pp, sha256
58c7d32888ae6c81, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).