component

S-SMBJ28A

Public Made by Adom

by adom

LRC 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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S-SMBJ28A

LRC · ESD And Surge Protection (TVS/ESD) · SMB

S-SMBJ28A from LRC, 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 LRC
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
Peak Pulse Power Dissipation (Note 1) 600 W TA=25°C, TP=1ms (Note 1) 1
Steady State Power Dissipation (Note 2) 3 W TL=75°C (Note 2) 1
Operating Temperature Range -55 150 °C 1
Storage Temperature Range -55 150 °C 1
Thermal resistance, junction to ambient (RθJA) RθJA 160 ℃/W Note 3: 8.0mm² (.013mm thick) land areas 1
Thermal resistance, junction to case (RθJC) RθJC 50 ℃/W 1

CAD (KiCad official)

  • Symbol: S-SMBJ28A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: s-smbj28a-etched.step / s-smbj28a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); s-smbj28a.step / s-smbj28a.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (4 pp, sha256 706efabab80fb6fe, retrieved 2026-10-22, 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