component

SMC3K28CAHM3_A

Public Made by Adom

by adom

Vishay Intertech ESD And Surge Protection (TVS/ESD), DO-214AB(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 protectionsmc3k28cahm3_afactory-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 17d ago
viewers smc3k28cahm3-a: viewers · Ray 17d ago
package.json Publish 0.1.0 · Ray 17d ago
page.json Set visibility: public · Ray 17d ago
README.md Publish 0.1.0 · Ray 17d ago
smc3k28cahm3-a-etched.glb Publish 0.1.0 · Ray 17d ago
smc3k28cahm3-a-etched.step smc3k28cahm3-a: factory component page (tier=lcsc) · Ray 17d ago
smc3k28cahm3-a-hero.glb smc3k28cahm3-a: hero GLB from the etched model (keeps the MPN mark) · Ray 17d ago
smc3k28cahm3-a-hero.overlay.json Publish 0.1.0 · Ray 17d ago
smc3k28cahm3-a.glb Publish 0.1.0 · Ray 17d ago
smc3k28cahm3-a.kicad_mod Publish 0.1.0 · Ray 17d ago
smc3k28cahm3-a.kicad_sym Publish 0.1.0 · Ray 17d ago
smc3k28cahm3-a.lbr Publish 0.1.0 · Ray 17d ago
smc3k28cahm3-a.step Publish 0.1.0 · Ray 17d ago

SMC3K28CAHM3_A

Vishay Intertech · ESD And Surge Protection (TVS/ESD) · DO-214AB(SMC)

SMC3K28CAHM3_A from Vishay Intertech, in a DO-214AB(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 1 passive Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation.
2 2 passive Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation.

Key specifications

Parameter Value
Manufacturer Vishay Intertech
Package DO-214AB(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
Breakdown voltage at IT VBR 31.1 34.4 V at IT = 1.0 mA 2
Maximum reverse leakage current ID 1 μA at VWM 2
Maximum clamping voltage (10/1000 μs) VC 45.4 V 10/1000 μs waveform, IPPM = 66.1 A 2
Maximum clamping voltage (8/20 μs) VC 60.2 V 8/20 μs waveform, IPPM = 498 A 2
Peak pulse power dissipation PPPM 3000 W 10/1000 μs waveform (fig.1), TA = 25 °C 1
Operating junction and storage temperature range TJ, TSTG -55 175 °C 1
Thermal resistance, junction-to-ambient RthJA 90 °C/W JEDEC 51-2A, device mounted on FR4 PCB, 2 oz. standard footprint 3
Thermal resistance, junction-to-mount RthJM 4 °C/W JEDEC 51-14, Transient Dual Interface Test Method (TDIM) 3

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 Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 1

CAD (KiCad official)

  • Symbol: SMC3K28CAHM3_A
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB(SMC) (KiCad packages3D, STEP)
  • 3D model files: smc3k28cahm3-a-etched.step / smc3k28cahm3-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smc3k28cahm3-a.step / smc3k28cahm3-a.glb are the bare package body.

Provenance

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

  • Datasheet: Vishay Intertech datasheet (7 pp, sha256 8813e1cb86b9b9d4, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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