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Contents

README

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TPSMAJ40A

PTTC Polytronics Tech · ESD And Surge Protection (TVS/ESD) · SMA(DO-214AC)

TPSMAJ40A from PTTC Polytronics Tech, in a SMA(DO-214AC). 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 uni-directional TPSMAJ40A; reverse stand-off voltage 40 V, breakdown 44.4-49.1 V at 1 mA, max clamping 64.5 V at 6.20 A.
2 A passive Anode terminal at the end opposite the cathode band; the 400 W (10/1000 µs) TVS conducts in forward direction from this pin on the uni-directional part.

Key specifications

Parameter Value
Manufacturer PTTC Polytronics Tech
Package SMA(DO-214AC)
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: TPSMAJ40A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: tpsmaj40a-etched.step / tpsmaj40a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpsmaj40a.step / tpsmaj40a.glb are the bare package body.

Provenance

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

  • Datasheet: PTTC Polytronics Tech datasheet (6 pp, sha256 7384dbc670e33d22, retrieved 2026-10-13, 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