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PSMAJ440A-13

Public Made by Adom

by adom

Diodes Incorporated TVS, SMA. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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PSMAJ440A-13

Diodes Incorporated · TVS · SMA

PSMAJ440A-13 from Diodes Incorporated, in a SMA. 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 Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SMA
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 (min) VBR 418 V @ IT = 1.0 mA (Note 7: IT current pulse 10 to 15 ms) 2
Breakdown voltage (max) VBR 462 V @ IT = 1.0 mA (Note 7: IT current pulse 10 to 15 ms) 2
Max. reverse leakage current IR 5 A @ VRWM 2
Max. clamping voltage VC 602 V @ Ipp (tp = 10x1000µs), see Figure 4 2
Max. peak pulse current Ipp 0.66 A tp = 10x1000µs 2
Peak pulse power dissipation PPK 400 W Non-repetitive current pulse derated above TA = +25°C, TP = 1ms (Note 5) 1
Peak forward surge current IFSM 40 A 8.3ms single half sine-wave superimposed on rated load (Note 6) 1
Steady state power dissipation PM(AV) 1 W @ TL = +120°C 1
Instantaneous forward voltage VF 6.5 V @ IPP = 25A (Note 6) 1
Operating temperature range TJ -55 150 °C 2
Storage temperature range TSTG -55 175 °C 2
Reverse standoff voltage VRWM 376 V Printed as VRWM (V) column of electrical characteristics table; no min/max printed 2

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: Lead-Free Plating (Matte Tin Finish) Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: PSMAJ440A-13
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: psmaj440a-13-etched.step / psmaj440a-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); psmaj440a-13.step / psmaj440a-13.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (4 pp, sha256 162f6bfd59dc3730, retrieved 2026-10-21, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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