component
PESD12VS1UJ
Public Made by Adomby adom
UMW ESD And Surge Protection (TVS/ESD), SOD-323F. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdownPESD12VS1UJ
UMW · ESD And Surge Protection (TVS/ESD) · SOD-323F
PESD12VS1UJ from UMW, in a SOD-323F. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOD-323F |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage (12V variant) | VBR | 13.3 | 14.5 | 15.75 | V | IR=5mA | 4 |
| Reverse leakage current (12V variant) | IRM | 1 | nA | VRWM=12V; printed as <1 | 4 | ||
| Diode capacitance (12V variant) | Cd | 160 | 180 | pF | VR=0V, f=1MHz | 4 | |
| Clamping voltage (12V variant) | VCL | 27 | V | IPP=22.5A | 4 | ||
| Clamping voltage (12V variant) | VCL | 23.5 | V | IPP=15A | 4 | ||
| Clamping voltage (12V variant) | VCL | 19 | V | IPP=5A | 4 | ||
| Reverse standoff voltage (12V variant) | VRWM | 12 | V | 2 | |||
| Peak pulse power (12V variant) | PPP | 600 | W | tp=8/20μs ①② | 2 | ||
| Peak pulse current (12V variant) | IPP | 22.5 | A | tp=8/20μs ①② | 2 | ||
| Junction temperature | TJ | 150 | °C | 2 | |||
| Ambient temperature | Tamb | -55 | 150 | °C | 2 | ||
| Storage temperature | TSTG | -65 | 150 | °C | 2 | ||
| Total power dissipation (12V variant) | Ptot | 720 | mW | Tamb≤ 25°C ③④ | 2 | ||
| Electrostatic discharge voltage, IEC 61000-4-2 contact discharge | VESD | 30 | kV | IEC 61000-4-2 (contact discharge) ① | 3 | ||
| Electrostatic discharge voltage, machine model | VESD | 400 | V | machine model | 3 | ||
| Electrostatic discharge voltage, human body model | VESD | 16 | kV | MIL-STD-883 (human body model) | 3 | ||
| Thermal resistance junction to ambient | Rth(j-a) | 290 | KW | in free air ①; FR4 PCB, single-sided copper, tin-plated, standard footprint | 3 | ||
| Thermal resistance junction to ambient | Rth(j-a) | 170 | KW | in free air ②; FR4 PCB, mounting pad for cathode 1 cm² | 3 | ||
| Thermal resistance junction to solder point | Rth(j-sp) | 35 | KW | ③ soldering point of cathode tab | 3 |
CAD (KiCad official)
- Symbol:
PESD12VS1UJ - Footprint:
Diode_SMD:D_SOD-323F - 3D model: SOD-323F (KiCad packages3D, STEP)
- 3D model files:
pesd12vs1uj-etched.step/pesd12vs1uj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pesd12vs1uj.step/pesd12vs1uj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (9 pp, sha256
79168b9bf6cea9d2, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).