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Contents

README

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PESD12VS1UA

Nexperia · ESD And Surge Protection (TVS/ESD) · SOD-323

PESD12VS1UA from Nexperia, 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 K1 passive Cathode of the unidirectional TVS diode, identified by the marking band, connected to the protected signal line (VRWM 12 V max, VBR 13.3 V to 15.75 V at IR = 5 mA).
2 A passive Anode of the unidirectional TVS diode, connected to ground (GND) in the application diagram for positive signal polarity lines.

Key specifications

Parameter Value
Manufacturer Nexperia
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
rated peak pulse power PPPM 600 W 3
rated peak pulse current IPPM 22.5 A tp = 8/20 µs 3
total power dissipation Ptot 360 mW Tamb ≤ 25 °C 3
total power dissipation Ptot 500 mW 3
junction temperature Tj 150 °C 3
ambient temperature Tamb -55 150 °C 3
storage temperature Tstg -65 150 °C 3
electrostatic discharge voltage, IEC 61000-4-2 contact discharge VESD 30 kV IEC 61000-4-2; contact discharge; Tamb = 25 °C 3
electrostatic discharge voltage, IEC 61000-4-2 air discharge VESD 15 kV IEC 61000-4-2; air discharge 3
electrostatic discharge voltage, machine model VESD 400 V machine model; Tamb = 25 °C 3
electrostatic discharge voltage, MIL-STD-883 human body model VESD 16 kV MIL-STD-883 (human body model); Tamb = 25 °C 3
thermal resistance junction to ambient Rth(j-a) 345 K/W in free air 4
thermal resistance junction to ambient Rth(j-a) 250 K/W 4
thermal resistance junction to solder point Rth(j-sp) 90 K/W 4
reverse standoff voltage VRWM 12 V Tamb = 25 °C 5
breakdown voltage VBR 13.3 14.5 15.75 V IR = 5 mA; Tamb = 25 °C 5
reverse leakage current IRM 1 100 nA VRWM = 12 V; Tamb = 25 °C 5
diode capacitance Cd 160 180 pF f = 1 MHz; VR = 0 V; Tamb = 25 °C 5
clamping voltage VCL 27 V IPPM = 22.5 A; Tamb = 25 °C 5
clamping voltage VCL 23.5 V IPP = 15 A; Tamb = 25 °C 5
clamping voltage VCL 19 V IPP = 5 A; Tamb = 25 °C 5
differential resistance Rdiff 5 100 Ω IR = 5 mA; Tamb = 25 °C 5

CAD (KiCad official)

  • Symbol: PESD12VS1UA
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: pesd12vs1ua-etched.step / pesd12vs1ua-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pesd12vs1ua.step / pesd12vs1ua.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Nexperia datasheet (13 pp, sha256 adf9db7d6cda310b, retrieved 2026-11-06, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF