component

SMAJ8.5A-AT

Public Made by Adom

by adom

Brightking Elec (TAIWAN) TVS, 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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SMAJ8.5A-AT

Brightking Elec (TAIWAN) · TVS · SMA(DO-214AC)

SMAJ8.5A-AT from Brightking Elec (TAIWAN), 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 Elec (TAIWAN)
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 PPPM 400 W 10/1000µs waveform (Note 1, Note 2, Fig.1) 1
Steady state power dissipation PM(AV) 3.3 W TA=50℃ (Fig.5) 1
Peak forward surge current IFSM 40 A 8.3ms single half sine-wave, JEDEC Method (Note 3, Fig.6) 1
Operating junction and storage temperature range TJ,TSTG -55 150 ℃ 1
Thermal resistance junction to lead RθJL 30 ℃/W Typical 1
Thermal resistance junction to ambient RθJA 120 ℃/W Typical 1
Reverse stand-off voltage (unidirectional) VRWM 8.5 V SMAJ8.5A-AT 2
Breakdown voltage (unidirectional) VBR 9.44 10.4 V @IT = 1 mA 2
Maximum clamping voltage (unidirectional) VC 14.4 V @IPP = 27.8 A 2
Peak pulse current (unidirectional) IPP 27.8 A Per table, paired with VC 2
Reverse leakage current (unidirectional) IR 20 µA @VRWM = 8.5 V 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper 2. Mounted on 5.0mm×5.0mm (0.03mm thick) copper pads to each terminal. 1

CAD (KiCad official)

  • Symbol: SMAJ8.5A-AT
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: smaj8-5a-at-etched.step / smaj8-5a-at-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smaj8-5a-at.step / smaj8-5a-at.glb are the bare package body.

Provenance

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

  • Datasheet: Brightking Elec (TAIWAN) datasheet (6 pp, sha256 b89bf590a7f5b511, retrieved 2026-10-21, 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