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ATV02W540B-HF

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Comchip ESD And Surge Protection (TVS/ESD), SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ATV02W540B-HF

Comchip · ESD And Surge Protection (TVS/ESD) · SOD-123

ATV02W540B-HF from Comchip, in a SOD-123. 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 A1 passive Bidirectional TVS terminal 1 (ATV02W540B is the B-suffix bi-directional part, so the terminals are interchangeable), VRWM 54.0 V, VBR 60.00-66.30 V at 1 mA, VC max 87.1 V at IPP 2.30 A.
2 A2 passive Bidirectional TVS terminal 2 (no cathode band on bipolar parts, so it is interchangeable with terminal 1), 200 W peak pulse power at 10/1000µs.

Key specifications

Parameter Value
Manufacturer Comchip
Package SOD-123
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, minimum (bidirectional ATV02W540B-HF) VBR 60 V IT = 1 mA 3
Breakdown voltage, maximum (bidirectional ATV02W540B-HF) VBR 66.3 V IT = 1 mA 3
Maximum clamping voltage VC 87.1 V @ IPP, 10/1000µs waveform 3
Peak pulse current IPP 2.3 A 10/1000µs waveform (Note 1) 3
Reverse leakage current IR 1 uA @ VRWM 3
Working peak reverse voltage VRWM 54 V 3
Peak power dissipation PPP 200 W 10/1000µs waveform (Note 1) 1
Peak power dissipation PPP 1000 W 8/20µs waveform (Note 1) 1
Power dissipation on infinite heatsink PD 0.4 W TL = 75°C 1
Operating junction and storage temperature range TJ,TSTG -55 150 °C 1
Typical thermal resistance, junction to ambient RθJA 200 °C/W Mounted on 10x10mm copper pad areas (Note 3) 1
Typical thermal resistance, junction to case RθJC 100 °C/W Mounted on 10x10mm copper pad areas (Note 3) 1

CAD (KiCad official)

  • Symbol: ATV02W540B-HF
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: atv02w540b-hf-etched.step / atv02w540b-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atv02w540b-hf.step / atv02w540b-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Comchip datasheet (5 pp, sha256 2545290f04f4cdc2, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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