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CESD3V3D3
Public Made by Adomby adom
UMW 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
markdownCESD3V3D3
UMW · ESD And Surge Protection (TVS/ESD) · SOD-323
CESD3V3D3 from UMW, 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 | Pin1 | passive | Pin 1 of the unidirectional ESD protection diode, shown only as a label in the SOD-323 pinning figure; the text does not state whether it is the anode or cathode. |
| 2 | Pin2 | passive | Pin 2 of the unidirectional ESD protection diode, shown only as a label in the SOD-323 pinning figure; the text does not state whether it is the anode or cathode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| 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 stand-off voltage | VRWM | 3.3 | V | 4 | |||
| Reverse leakage current | IR | 5 | µA | 4 | |||
| Breakdown voltage | V(BR) | 5.9 | V | IT=1mA | 4 | ||
| Clamping voltage | VC | 10 | V | IPP=16A | 4 | ||
| Clamping voltage (max) | VC | 13 | V | IPP=16A | 4 | ||
| Forward voltage | VF | 0.9 | V | IF=10mA | 4 | ||
| Junction capacitance | CJ | 13 | pF | VR=0V, f=1MHz | 4 | ||
| ESD voltage, IEC 61000-4-2 Air Model | VESD | 25 | kV | Device stressed with ten non-repetitive ESD pulses | 2 | ||
| ESD voltage, IEC 61000-4-2 Contact Model | VESD | 25 | kV | Device stressed with ten non-repetitive ESD pulses | 2 | ||
| ESD voltage, Human Body Model | VESD | 16 | kV | Device stressed with ten non-repetitive ESD pulses | 2 | ||
| ESD voltage, Machine Model | VESD | 0.4 | kV | Device stressed with ten non-repetitive ESD pulses | 2 | ||
| Peak pulse power | PPP | 210 | W | Non-repetitive current pulse 8/20µs exponential decay waveform according to IEC61000-4-5 | 2 | ||
| Peak pulse current | IPP | 16 | A | Non-repetitive current pulse 8/20µs exponential decay waveform according to IEC61000-4-5 | 2 | ||
| Lead solder temperature (10 s) | TL | 260 | °C | 10 second duration | 2 | ||
| Junction temperature | TJ | 150 | °C | 2 | |||
| Storage temperature range | TSTG | -55 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
CESD3V3D3 - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
cesd3v3d3-etched.step/cesd3v3d3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cesd3v3d3.step/cesd3v3d3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (8 pp, sha256
3689c123e775c217, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).