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SMAJ18CA-13-F

Public Made by Adom

by adom

Diodes Incorporated ESD And Surge Protection (TVS/ESD), 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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SMAJ18CA-13-F

Diodes Incorporated · ESD And Surge Protection (TVS/ESD) · SMA

SMAJ18CA-13-F 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SMA
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 (bidirectional, SMAJ18CA) VBR 20 V @ IT = 1.0 mA; IT pulse 10 ms to 15 ms (Note 9) 3
Breakdown voltage (bidirectional, SMAJ18CA) VBR 22.1 V @ IT = 1.0 mA; IT pulse 10 ms to 15 ms (Note 9) 3
Max reverse leakage current IR 5 µA @ VRWM = 18 V (Note 10) 3
Max clamping voltage VC 29.2 V @ IPP = 13.7 A 3
Max peak pulse current IPP 13.7 A 3
Reverse standoff voltage VRWM 18 V 3
Peak pulse power dissipation PPK 400 W Non-repetitive current pulse, derated above TA = +25°C (Note 5) 2
Peak forward surge current IFSM 40 A 8.3 ms single half sine wave superimposed on rated load (Notes 5, 6, 7) 2
Steady state power dissipation PM(AV) 1 W @ TL = +75°C 2
Operating temperature range TJ -55 150 °C 2
Storage temperature range TSTG -55 150 °C 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: SMAJ18CA-13-F
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: smaj18ca-13-f-etched.step / smaj18ca-13-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj18ca-13-f.step / smaj18ca-13-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (6 pp, sha256 70c17cee9c231f90, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band 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