component
ESDT12VD3
Public Made by Adomby adom
Changjing ESD And Surge Protection (TVS/ESD), SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownESDT12VD3
Changjing · ESD And Surge Protection (TVS/ESD) · SOD-323
ESDT12VD3 from Changjing, in a SOD-323. 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 | K | passive | Cathode of the uni-directional ESD protection diode, connected to the protected line (reverse stand-off voltage 12V), and identified by the marking bar. |
| 2 | A | passive | Anode of the uni-directional ESD protection diode, normally connected to ground, with the diode clamping at 32V max at IPP=50A (8/20µs). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOD-323 |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse leakage current | IR | 1 | μA | VRWM=12V | 3 | ||
| Breakdown voltage | V(BR) | 13.3 | 16.5 | V | IT=1mA | 3 | |
| Clamping voltage | VC | 32 | V | IPP=50A, 8/20μs | 3 | ||
| Forward voltage | VF | 0.9 | V | IF=10mA | 3 | ||
| Junction capacitance | CJ | 300 | pF | VR=0V,f=1MHz | 3 | ||
| Reverse stand off voltage | VRWM | 12 | V | 3 | |||
| IEC 61000-4-2 ESD Voltage Air Model | VESD | -25 | 25 | kV | Ta=25℃, ten non-repetitive ESD pulses | 2 | |
| IEC 61000-4-2 ESD Voltage Contact Model | VESD | -25 | 25 | kV | Ta=25℃, ten non-repetitive ESD pulses | 2 | |
| JESD22-A114-B ESD Voltage Per Human Body Model | VESD | -16 | 16 | kV | Ta=25℃, ten non-repetitive ESD pulses | 2 | |
| ESD Voltage Machine Model | VESD | -0.4 | 0.4 | kV | Ta=25℃, ten non-repetitive ESD pulses | 2 | |
| Peak Pulse Power | PPP | 1600 | W | Non-repetitive 8/20µs exponential decay, IEC61000-4-5 | 2 | ||
| Peak Pulse Current | IPP | 50 | A | Non-repetitive 8/20µs exponential decay, IEC61000-4-5 | 2 | ||
| Lead Solder Temperature - Maximum | TL | 260 | ℃ | 10 Second Duration | 2 | ||
| Operation Junction and Storage Temperature Range | TJ,Tstg | -55 | 150 | ℃ | 2 |
CAD (KiCad official)
- Symbol:
ESDT12VD3 - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
esdt12vd3-etched.step/esdt12vd3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esdt12vd3.step/esdt12vd3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
b25cd68fa7bf56b2, retrieved 2026-10-22, tier: lcsc) - 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).