component

SMBJ8.5A-QH

Public Made by Adom

by adom

BOURNS TVS, SMB(DO-214AA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcircuit protectionsmbj8.5a-qhfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
smbj8-5a-qh / README.md
History Download
Ray Publish 0.1.0 ea2bb07 15d ago

SMBJ8.5A-QH

BOURNS · TVS · SMB(DO-214AA)

SMBJ8.5A-QH from BOURNS, in a SMB(DO-214AA). 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 BOURNS
Package SMB(DO-214AA)
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 (unidirectional, min) VBR 9.44 V @ IT = 1.0 mA 2
Breakdown voltage (unidirectional, max) VBR 10.4 V @ IT = 1.0 mA 2
Maximum reverse leakage IR 20 µA @ VRWM = 8.5 V 2
Maximum clamping voltage (10/1000 µs) Vc 14.4 V @ Ipp (10/1000 µs) 2
Maximum peak pulse current (10/1000 µs) Ipp 41.7 A 10/1000 µs 2
Maximum clamping voltage (8/20 µs) Vc 18.7 V @ Ipp (8/20 µs) 2
Maximum peak pulse current (8/20 µs) Ipp 208.5 A 8/20 µs 2
Minimum peak pulse power dissipation PPK 600 W TP = 1 ms (Notes 1,2) 1
Peak forward surge current IFSM 100 A 8.3 ms single half sine wave superimposed on rated load (JEDEC method) (Note 3) 1
Operating temperature range TJ -55 150 °C 1
Storage temperature range TSTG -55 150 °C 1
Breakdown voltage tolerance (suffix A, unidirectional) -5 5 % Suffix 'A' denotes a 5 % tolerance unidirectional device 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 5.0 mm2 (0.03 mm thick) copper pads to each terminal. 1

CAD (KiCad official)

  • Symbol: SMBJ8.5A-QH
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: smbj8-5a-qh-etched.step / smbj8-5a-qh-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj8-5a-qh.step / smbj8-5a-qh.glb are the bare package body.

Provenance

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

  • Datasheet: BOURNS datasheet (6 pp, sha256 fd33918f2c178a02, retrieved 2026-10-23, 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