component

SMFJ70A

Public Made by Adom

by adom

BORN ESD And Surge Protection (TVS/ESD), SOD-123F. 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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SMFJ70A

BORN · ESD And Surge Protection (TVS/ESD) · SOD-123F

SMFJ70A from BORN, in a SOD-123F. 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 BORN
Package SOD-123F
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 VBR 78.8 86 V @ IT = 1 mA (test current) 4
Maximum Clamping Voltage VC 113 V @ Ipp = 1.5 A 4
Maximum Peak Pulse Current IPP 1.5 A 4
Maximum Reverse Leakage Current IR 1 uA @ VR = 70 V 4
Peak Pulse Power Dissipation PPPM 200 W 10/1000us waveform, non-repetitive (Note 1,2) 2
Steady State Power Dissipation PD 1 W Infinite heat sink at TA = 50°C (Note 3) 2
Peak Forward Surge Current IFSM 20 A 8.3ms single half sine wave or equivalent square wave (Note 4) 2
Maximum Instantaneous Forward Voltage VFM 3.5 V At 10A (Note 5), unidirectional only 2
Operating Junction Temperature Range TJ -55 150 °C 2
Storage Temperature Range TSTG -55 150 °C 2
Typical Thermal Resistance Junction to Lead RθJL 100 °C/W 2
Typical Thermal Resistance Junction to Ambient RθJA 220 °C/W 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 tin • Lead Finish: Matte Tin • Case Material: Epoxy Molding Compound 1

CAD (KiCad official)

  • Symbol: SMFJ70A
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123F (KiCad packages3D, STEP)
  • 3D model files: smfj70a-etched.step / smfj70a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smfj70a.step / smfj70a.glb are the bare package body.

Provenance

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

  • Datasheet: BORN datasheet (7 pp, sha256 dd8422b2bd24ae70, 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