component

SMBJ28AQ

Public Made by Adom

by adom

Yangzhou Yangjie Elec Tech ESD And Surge Protection (TVS/ESD), DO-214AA(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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viewers smbj28aq: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
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README.md Publish 0.1.0 · Ray 23d ago
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smbj28aq-etched.step smbj28aq: factory component page (tier=lcsc) · Ray 23d ago
smbj28aq-hero.glb smbj28aq: hero GLB from the etched model (keeps the MPN mark) · Ray 23d ago
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smbj28aq.glb Publish 0.1.0 · Ray 23d ago
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smbj28aq.kicad_sym smbj28aq: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smbj28aq.lbr smbj28aq: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smbj28aq.step Publish 0.1.0 · Ray 23d ago

SMBJ28AQ

Yangzhou Yangjie Elec Tech · ESD And Surge Protection (TVS/ESD) · DO-214AA(SMB)

SMBJ28AQ from Yangzhou Yangjie Elec Tech, in a DO-214AA(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 Yangzhou Yangjie Elec Tech
Package DO-214AA(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 (min) VBR 31.1 V @ IT = 1 mA; pulse test tp≤50ms (note 4) 2
Breakdown voltage (max) VBR 34.4 V @ IT = 1 mA; pulse test tp≤50ms (note 4) 2
Maximum instantaneous forward voltage VF 3.5 V @ IF = 50A, unidirectional only (note 3) 1
Maximum reverse leakage current IR 1 μA @ VRWM 2
Maximum reverse surge current IPP 13.2 A Surge current waveform per Fig.3 (note 5) 2
Maximum clamping voltage VC 45.4 V @ IPP 2
Peak pulse power dissipation PPPM 600 W 10/1000us waveform (1)(2) (Fig.1) 1
Power dissipation PD 5 W On infinite heat sink at TL=75℃ 1
Peak forward surge current IFSM 100 A 8.3 ms single half sine-wave, unidirectional only (2) 1
Operating junction temperature range TJ -55 175 ℃ 1
Storage temperature range TSTG -55 175 ℃ 1
Working peak reverse voltage VRWM 28 V 2
Thermal resistance, junction to lead (typical) RθJL 20 ℃/W Junction to lead 3
Thermal resistance, junction to ambient (typical) RθJA 100 ℃/W Junction to ambient 3

CAD (KiCad official)

  • Symbol: SMBJ28AQ
  • Footprint: Diode_SMD:D_SMB
  • 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
  • 3D model files: smbj28aq-etched.step / smbj28aq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj28aq.step / smbj28aq.glb are the bare package body.

Provenance

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

  • Datasheet: Yangzhou Yangjie Elec Tech datasheet (6 pp, sha256 c858e6d6adc08fc3, retrieved 2026-10-15, 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