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SMBJ33A-13-F

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

SMBJ33A-13-F from Diodes Incorporated, 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, marked by the cathode band on the unidirectional SMBJ33A; connects to the protected line, which is held off to VRWM 33.0V and clamped at max 53.3V at 11.3A.
2 A passive Anode terminal of the unidirectional SMBJ33A, normally connected to ground or the return side of the protected line.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SMB
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: SMBJ33A-13-F
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smbj33a-13-f-etched.step / smbj33a-13-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj33a-13-f.step / smbj33a-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 752945fa3acaf469, 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