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TPSMB33AHE3_A

Public Made by Adom

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Vishay Intertech TVS, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TPSMB33AHE3_A

Vishay Intertech · TVS · SMB(DO-214AA)

TPSMB33AHE3_A from Vishay Intertech, in a SMB(DO-214AA). 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 K passive Cathode terminal, marked by the color band on the SMB (DO-214AA) body; unidirectional device, connect to the positive/protected line (VWM 28.2 V, VBR 31.4 V to 34.7 V at 1 mA for TPSMB33A).
2 A passive Anode terminal at the end opposite the cathode band; unidirectional device, connect to ground/return (600 W peak pulse power with 10/1000 μs waveform).

Key specifications

Parameter Value
Manufacturer Vishay Intertech
Package SMB(DO-214AA)
Category TVS/Fuse/Board Level 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 31.4 33 34.7 V at IT = 1 mA, TA = 25 °C 2
Test current IT 1 mA TA = 25 °C 2
Stand-off voltage VWM 28.2 V TA = 25 °C 2
Maximum reverse leakage at VWM IR 1 μA at VWM, TA = 25 °C 2
Maximum reverse leakage at VWM, TJ = 150 °C ID 5 μA at VWM, TJ = 150 °C 2
Maximum peak pulse surge current IPPM 13.1 A 10/1000 μs waveform, fig. 3 2
Maximum clamping voltage VC 45.7 V at IPPM 2
Typical temperature coefficient of VBR αT 0.089 %/°C 2
Peak pulse power dissipation PPPM 600 W 10/1000 μs waveform (fig. 1), TA = 25 °C 1
Peak forward surge current IFSM 75 A 8.3 ms single half sine-wave, TA = 25 °C 1
Maximum instantaneous forward voltage VF 3.5 V at 50 A, TA = 25 °C 1
Operating junction and storage temperature range TJ, TSTG -65 185 °C 1

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: TPSMB33AHE3_A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: tpsmb33ahe3-a-etched.step / tpsmb33ahe3-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpsmb33ahe3-a.step / tpsmb33ahe3-a.glb are the bare package body.

Provenance

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

  • Datasheet: Vishay Intertech datasheet (5 pp, sha256 46356b483a7d4f56, retrieved 2026-10-23, 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