component

SMBJ15CAJ

Public Made by Adom

by adom

WeEn Semiconductors ESD And Surge Protection (TVS/ESD), SMB. 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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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 15d ago
viewers smbj15caj: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
package.json Publish 0.1.0 · Ray 15d ago
page.json Set visibility: public · Ray 15d ago
README.md Publish 0.1.0 · Ray 15d ago
smbj15caj-etched.glb Publish 0.1.0 · Ray 15d ago
smbj15caj-etched.step smbj15caj: factory component page (tier=lcsc) · Ray 15d ago
smbj15caj-hero.glb smbj15caj: hero GLB from the etched model (keeps the MPN mark) · Ray 15d ago
smbj15caj-hero.overlay.json Publish 0.1.0 · Ray 15d ago
smbj15caj.glb Publish 0.1.0 · Ray 15d ago
smbj15caj.kicad_mod Publish 0.1.0 · Ray 15d ago
smbj15caj.kicad_sym smbj15caj: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smbj15caj.lbr smbj15caj: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smbj15caj.step Publish 0.1.0 · Ray 15d ago

SMBJ15CAJ

WeEn Semiconductors · ESD And Surge Protection (TVS/ESD) · SMB

SMBJ15CAJ from WeEn Semiconductors, in a 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 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 WeEn Semiconductors
Package 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 16.86 18.34 V @ IT = 1 mA, Tj = 25 °C 2
Reverse stand-off voltage VR 15 V Tj = 25 °C 2
Test current IT 1 mA Tj = 25 °C 2
Maximum clamping voltage VC 24.4 V @ Ipp = 24.6 A, Tj = 25 °C 2
Maximum peak pulse current Ipp 24.6 A Tj = 25 °C 2
Maximum reverse leakage IR 1 μA @ VR = 15 V, Tj = 25 °C 2
Peak pulse power PPPM 600 W 10/1000 μs waveform (IEC 61643-321), Tj = 25 °C 1
Steady state power dissipation PM(AV) 5 W on infinite heatsink at Ta = 50 °C 1
Storage temperature range Tstg -65 150 °C 1
Operating temperature range Tj -65 150 °C 1

CAD (KiCad official)

  • Symbol: SMBJ15CAJ
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smbj15caj-etched.step / smbj15caj-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj15caj.step / smbj15caj.glb are the bare package body.

Provenance

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

  • Datasheet: WeEn Semiconductors datasheet (7 pp, sha256 66a83a6e59c74b99, retrieved 2026-10-23, 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