component
PESD12VS1UB
Public Made by Adomby adom
UMW ESD And Surge Protection (TVS/ESD), SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 13d ago |
| viewers | 13d ago |
| package.json | 13d ago |
| page.json | 13d ago |
| pesd12vs1ub-etched.glb | 13d ago |
| pesd12vs1ub-etched.step | 13d ago |
| pesd12vs1ub-hero.glb | 13d ago |
| pesd12vs1ub-hero.overlay.json | 13d ago |
| pesd12vs1ub.glb | 13d ago |
| pesd12vs1ub.kicad_mod | 13d ago |
| pesd12vs1ub.kicad_sym | 13d ago |
| pesd12vs1ub.lbr | 13d ago |
| pesd12vs1ub.step | 13d ago |
| README.md | 13d ago |
PESD12VS1UB
UMW · ESD And Surge Protection (TVS/ESD) · SOD-523
PESD12VS1UB from UMW, in a SOD-523. 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 | One terminal of the unidirectional ESD protection diode that protects one transmission or data line; for PESD12VS1UB the reverse standoff voltage VRWM is 12 V. Anode or cathode assignment is not stated in the datasheet text. |
| 2 | Pin2 | passive | The other terminal of the unidirectional ESD protection diode that protects one transmission or data line; for PESD12VS1UB the diode capacitance is 38 pF typical at VR=0V, f=1MHz. Anode or cathode assignment is not stated in the datasheet text. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOD-523 |
| 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 | VBR | 14.7 | 15 | 15.3 | V | IR=5mA | 5 |
| reverse leakage current | IRM | 50 | nA | VRWM=12V | 5 | ||
| diode capacitance | Cd | 38 | 75 | pF | VR=0V, f=1MHz | 5 | |
| peak pulse power | PPP | 180 | W | 8/20 μs(1) | 3 | ||
| peak pulse current | IPP | 5 | A | 8/20 μs(1) | 3 | ||
| junction temperature | TJ | 150 | °C | 3 | |||
| junction ambient temperature | Tamb | -65 | 150 | °C | 3 | ||
| storage temperature | TSTG | -65 | 150 | °C | 3 | ||
| electrostatic discharge capability (IEC 61000-4-2 contact discharge) | ESD | 30 | kV | IEC 61000-4-2 (contact discharge) | 4 | ||
| electrostatic discharge capability (HBM MIL-STD883) | ESD | 10 | kV | HBM MIL-STD883 | 4 | ||
| reverse standoff voltage | VRWM | 12 | V | 5 | |||
| clamping voltage | V(CL)R | 19 | V | IPP=1A | 6 | ||
| clamping voltage | V(CL)R | 35 | V | IPP=5A | 6 | ||
| differential resistance | Rdiff | 200 | Ω | IR=1mA | 6 |
CAD (KiCad official)
- Symbol:
PESD12VS1UB - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
pesd12vs1ub-etched.step/pesd12vs1ub-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pesd12vs1ub.step/pesd12vs1ub.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (12 pp, sha256
9cb60909210c314b, retrieved 2026-10-21, 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).