component

SMBJ85A

Public Made by Adom

by adom

Shandong Jingdao Microelectronics TVS, SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcircuit protectionsmbj85afactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 2h ago
viewers smbj85a: viewers · Ray 2h ago
package.json Publish 0.1.0 · Ray 2h ago
page.json Set visibility: public · Ray 2h ago
README.md Publish 0.1.0 · Ray 2h ago
smbj85a-etched.glb Publish 0.1.0 · Ray 2h ago
smbj85a-etched.step smbj85a: factory component page (tier=lcsc) · Ray 2h ago
smbj85a-hero.glb smbj85a: hero GLB from the etched model (keeps the MPN mark) · Ray 2h ago
smbj85a-hero.overlay.json Publish 0.1.0 · Ray 2h ago
smbj85a.glb Publish 0.1.0 · Ray 2h ago
smbj85a.kicad_mod Publish 0.1.0 · Ray 2h ago
smbj85a.kicad_sym Publish 0.1.0 · Ray 2h ago
smbj85a.lbr Publish 0.1.0 · Ray 2h ago
smbj85a.step Publish 0.1.0 · Ray 2h ago

SMBJ85A

Shandong Jingdao Microelectronics · TVS · SMB

SMBJ85A from Shandong Jingdao Microelectronics, 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 Cathode passive Cathode terminal of the unipolar SMBJ85A TVS, which is the terminal marked as cathode in the PINNING table.
2 Anode passive Anode terminal of the unipolar SMBJ85A TVS, which is the terminal marked as anode in the PINNING table.

Key specifications

Parameter Value
Manufacturer Shandong Jingdao Microelectronics
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
Reverse stand-off voltage VRWM 85 V 2
Breakdown voltage VBR 94.4 104 V Test current IT = 1 mA 2
Reverse leakage current 1 μA at VRWM 2
Max. clamp voltage VC 137 V at IPP = 4.4 A 2
Peak pulse current IPP 4.4 A 10/1000μs waveform (Note 1, Fig 3) 2
Peak pulse power dissipation PPPM 600 W 10/1000μS waveform (Note1, Note2, Fig.1) 1
Peak forward surge current IFSM 100 A 8.3ms single half sine-wave, JEDEC method (Note 3, Fig 4) 1
ESD voltage contact VESD1 30 kV Contact, per IEC6100-4-2 (as printed) 1
ESD voltage air VESD2 30 kV Air, per IEC6100-4-2 (as printed) 1
Operating junction and storage temperature range Tj, Tstg -65 150 °C Operating junction and storage temperature range 1
Typical junction capacitance CJ 390 pF VR=4V, f=1MHz 1
Typical thermal resistance junction to ambient RθJA 100 °C/W Junction to ambient, mounted on 5 mm land areas (Note 2) 1

CAD (KiCad official)

  • Symbol: SMBJ85A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smbj85a-etched.step / smbj85a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj85a.step / smbj85a.glb are the bare package body.

Provenance

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

  • Datasheet: Shandong Jingdao Microelectronics datasheet (4 pp, sha256 11a0cb29fa635344, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (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