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Contents

README

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PESD1LIN

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

PESD1LIN 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 1 passive Protected LIN-bus line terminal; the diode to pin 2 has 15 V reverse standoff (VRWM) with breakdown 17.1 V min to 20.3 V max at IR=5 mA (pin 1 to pin 2).
2 2 passive Second terminal of the asymmetrical TVS, connected to GND in the application; the diode from pin 2 to pin 1 has 24 V reverse standoff (VRWM).

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 standoff voltage (pin1 to pin2) VRWM 15 V PIN1 TO PIN2, 15V 4
Reverse standoff voltage (pin2 to pin1) VRWM 24 V PIN2 TO PIN1, 24V 4
Reverse leakage current (15V) IRM 1 50 nA VRWM=15V 4
Reverse leakage current (24V) IRM 1 50 nA VRWM=24V 4
Breakdown voltage (15V) VBR 17.1 18.9 20.3 V IR=1mA 4
Breakdown voltage (24V) VBR 25.4 27.8 30.3 V IR=1mA 4
Diode capacitance Cd 13 17 pF VR=0V, f=1MHz 4
Clamping voltage (15V) VCL 25 V IPP=1A 4
Clamping voltage (15V) VCL 44 V IPP=5A 4
Clamping voltage (24V) VCL 40 V IPP=1A 4
Clamping voltage (24V) VCL 70 V IPP=3A 4
Differential resistance (15V) rdif 225 Ω IR=5mA 4
Differential resistance (24V) rdif 300 Ω IR=5mA 4
Peak pulse power PPP 160 W tp=8/20μs 2
Peak pulse current IPP 3 A tp=8/20μs 2
Junction temperature TJ 150 °C 2
Ambient temperature Tamb -65 150 °C 2
Storage temperature TSTG -65 150 °C 2
Electrostatic discharge voltage, contact VESD 23 kV IEC 61000-4-2 (contact discharge) 3
Electrostatic discharge voltage, HBM VESD 10 kV MIL-STD-883 (human body model) 3

CAD (KiCad official)

  • Symbol: PESD1LIN
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: pesd1lin-etched.step / pesd1lin-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pesd1lin.step / pesd1lin.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (11 pp, sha256 ebb0d2c723aaa2ac, retrieved 2026-10-22, tier: lcsc)
  • 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