SMC3K28CAHM3_A
Public Made by Adomby 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.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownSMC3K28CAHM3_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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smc3k28cahm3-a.step/smc3k28cahm3-a.glbare 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, primarytwo-terminal convention(convention), consensusoff(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).