component

SMCJ188CA-TR

Public Made by Adom

by adom

STMicroelectronics ESD And Surge Protection (TVS/ESD), SMC. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcircuit protectionsmcj188ca-trfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
smcj188ca-tr / README.md
History Download
Ray Publish 0.1.0 5eeba79 17d ago

SMCJ188CA-TR

STMicroelectronics · ESD And Surge Protection (TVS/ESD) · SMC

SMCJ188CA-TR from STMicroelectronics, 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 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 STMicroelectronics
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
Leakage current at VRM, 25 °C IRM 0.2 µA at VRM = 188 V, 25 °C 3
Leakage current at VRM, 85 °C IRM 1 µA at VRM = 188 V, 85 °C 3
Breakdown voltage VBR 209 220 V at IR = 1 mA 3
Clamping voltage, 10/1000 µs pulse VCL 328 V 10/1000 µs pulse 3
Peak pulse current, 10/1000 µs IPP 4.6 A 10/1000 µs pulse 3
Dynamic resistance, 10/1000 µs RD 21.1 Ω 10/1000 µs pulse 3
Clamping voltage, 8/20 µs pulse VCL 388 V 8/20 µs pulse 3
Peak pulse current, 8/20 µs IPP 26 A 8/20 µs pulse 3
Dynamic resistance, 8/20 µs RD 6038 mΩ 8/20 µs pulse 3
Temperature coefficient of VBR and VCL αT 10.8 10-4/°C 3
Reverse stand-off voltage VRM 188 V SMCJ188A/CA row 3
Peak pulse voltage, contact discharge VPP 30 kV IEC 61000-4-2 (C = 150 pF, R = 330 Ω), contact discharge 2
Peak pulse voltage, air discharge VPP 30 kV IEC 61000-4-2 (C = 150 pF, R = 330 Ω), air discharge 2
Peak pulse power dissipation PPP 1500 W Tj initial = Tamb 2
Storage temperature range Tstg -65 150 °C 2
Operating junction temperature range Tj -55 150 °C 2
Maximum lead temperature for soldering TL 260 °C during 10 s 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 finishing: matte tin plating Complies with the following standards 1

CAD (KiCad official)

  • Symbol: SMCJ188CA-TR
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC (KiCad packages3D, STEP)
  • 3D model files: smcj188ca-tr-etched.step / smcj188ca-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smcj188ca-tr.step / smcj188ca-tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (12 pp, sha256 c130bf5265b0e135, retrieved 2026-10-16, 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