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Contents

README

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P6SMB440AHM3_D

Vishay Intertech · ESD And Surge Protection (TVS/ESD) · DO-214AA(SMB)

P6SMB440AHM3_D from Vishay Intertech, in a DO-214AA(SMB). 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 Cathode passive Cathode terminal of the unidirectional TVS, marked by the cathode band on the SMB (DO-214AA) body; connect to the protected positive line.
2 Anode passive Anode terminal of the unidirectional TVS (end without the cathode band) on the SMB (DO-214AA) body; connect to ground/return.

Key specifications

Parameter Value
Manufacturer Vishay Intertech
Package DO-214AA(SMB)
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 418 462 V at IT = 1.0 mA 2
Test current IT 1 mA 2
Stand-off voltage VWM 376 V 2
Maximum reverse leakage ID 1 μA at VWM 2
Maximum peak pulse current IPPM 1 A 10/1000 μs waveform 2
Maximum clamping voltage VC 602 V at IPPM 2
Maximum temperature coefficient of VBR 0.11 %/°C 2
Peak power dissipation PPPM 600 W 10/1000 μs waveform, TA = 25 °C 1
Power dissipation on infinite heatsink PD 5 W TA = 50 °C 1
Operating junction and storage temperature range TJ, TSTG -65 150 °C 1
Thermal resistance, junction to ambient RθJA 100 °C/W Mounted on minimum recommended pad layout 3
Thermal resistance, junction to lead RθJL 20 °C/W 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 1

CAD (KiCad official)

  • Symbol: P6SMB440AHM3_D
  • Footprint: Diode_SMD:D_SMB
  • 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
  • 3D model files: p6smb440ahm3-d-etched.step / p6smb440ahm3-d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); p6smb440ahm3-d.step / p6smb440ahm3-d.glb are the bare package body.

Provenance

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

  • Datasheet: Vishay Intertech datasheet (6 pp, sha256 31c5bc3c8236333a, retrieved 2026-10-22, 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