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Contents

README

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SMCJ58A-L

Shandong Jingdao Microelectronics · ESD And Surge Protection (TVS/ESD) · SMC

SMCJ58A-L from Shandong Jingdao Microelectronics, in a SMC. 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 of the unidirectional SMCJ58A-L TVS diode (58 V reverse stand-off, 64.4 V min breakdown, 93.6 V max clamping at 6.5 A peak pulse current).
2 A passive Anode of the unidirectional SMCJ58A-L TVS diode, connected to the protected circuit's return or ground side.

Key specifications

Parameter Value
Manufacturer Shandong Jingdao Microelectronics
Package SMC
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 58 V 2
Breakdown voltage VBR 64.4 71.2 V @ IT = 1 mA 2
Test current IT 1 mA 2
Maximum clamping voltage VC 93.6 V @ IPP = 6.5 A 2
Peak pulse current IPP 6.5 A 10/1000 us waveform 2
Maximum reverse leakage IR 1 μA @ VRWM 2
Peak pulse power dissipation PPPM 600 W 10/1000 us waveform 1
Peak forward surge current IFSM 100 A 8.3ms single half sine-wave, superimposed on rated load (JEDEC), UNI 1
Maximum instantaneous forward voltage VF 3.5 V at 100 A, unidirectional only 1
Thermal resistance junction to ambient RθJA 75 °C/W Note 1 1
Thermal resistance junction to lead RθJL 15 °C/W Note 1 1
Operating junction and storage temperature range Tj, Tstg -55 150 °C 1

CAD (KiCad official)

  • Symbol: SMCJ58A-L
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC (KiCad packages3D, STEP)
  • 3D model files: smcj58a-l-etched.step / smcj58a-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smcj58a-l.step / smcj58a-l.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 fe884aa643fb34c4, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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