component

SMAJ30A-AT

Public Made by Adom

by adom

Brightking ESD And Surge Protection (TVS/ESD), SMA(DO-214AC). 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 24d ago
viewers smaj30a-at: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
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page.json Set visibility: public · Ray 24d ago
README.md Publish 0.1.0 · Ray 24d ago
smaj30a-at-etched.glb Publish 0.1.0 · Ray 24d ago
smaj30a-at-etched.step smaj30a-at: factory component page (tier=lcsc) · Ray 24d ago
smaj30a-at-hero.glb smaj30a-at: hero GLB from the etched model (keeps the MPN mark) · Ray 24d ago
smaj30a-at-hero.overlay.json Publish 0.1.0 · Ray 24d ago
smaj30a-at.glb Publish 0.1.0 · Ray 24d ago
smaj30a-at.kicad_mod Publish 0.1.0 · Ray 24d ago
smaj30a-at.kicad_sym smaj30a-at: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
smaj30a-at.lbr smaj30a-at: symbol repaired (D_Zener, cathode pad 1) · Ray 3d ago
smaj30a-at.step Publish 0.1.0 · Ray 24d ago

SMAJ30A-AT

Brightking · ESD And Surge Protection (TVS/ESD) · SMA(DO-214AC)

SMAJ30A-AT from Brightking, in a SMA(DO-214AC). 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 Brightking
Package SMA(DO-214AC)
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 at 10/1000μs waveform PPPM 400 Watts 10/1000μs waveform (Note1, Note2, Fig.1) 1
Breakdown voltage VBR 33.3 36.8 V @IT = 1 mA (unidirectional, SMAJ30A) 3
Maximum clamping voltage VC 48.4 V @IPP = 8.3 A 3
Reverse leakage current IR 1 μA @VRWM = 30.0 V 3
Reverse stand-off voltage VRWM 30 V 3
Steady state power dissipation PM(AV) 3.3 Watts at TA=50℃ (Fig.5) 1
Peak forward surge current IFSM 40 Amps 8.3ms single half sine-wave, superimposed on rated load (JEDEC Method) (Note3, Fig.6) 1
Operating junction and storage temperature range TJ,TSTG -55 150 ℃ 1
Typical thermal resistance junction to lead RθJL 30 ℃/W 1
Typical thermal resistance junction to ambient RθJA 120 ℃/W 1

CAD (KiCad official)

  • Symbol: SMAJ30A-AT
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: smaj30a-at-etched.step / smaj30a-at-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj30a-at.step / smaj30a-at.glb are the bare package body.

Provenance

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

  • Datasheet: Brightking datasheet (6 pp, sha256 b89bf590a7f5b511, retrieved 2026-10-14, 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