component
1.5SMC56A
Public Made by Adomby adom
MSKSEMI ESD And Surge Protection (TVS/ESD), SMC. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1.5SMC56A
MSKSEMI · ESD And Surge Protection (TVS/ESD) · SMC
1.5SMC56A from MSKSEMI, 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 (color-band end) of the unidirectional 1.5SMC56A TVS, connected to the protected line; reverse stand-off 47.80 V, breakdown 53.20~58.80 V at 1 mA, max clamping 77.0 V at 19.7 A. |
| 2 | A | passive | Anode of the unidirectional 1.5SMC56A TVS, normally connected to ground/return; 1500 W peak pulse power at 10/1000 µs. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 53.2 | 58.8 | V | @IT = 1 mA, TA=25℃ | 4 | |
| Reverse Stand-Off Voltage | VRWM | 47.8 | V | TA=25℃ | 4 | ||
| Maximum Clamping Voltage | VC | 77 | V | @IPP=19.7 A, 10/1000μs | 4 | ||
| Peak Pulse Current | IPP | 19.7 | A | 10/1000μs waveform | 4 | ||
| Reverse Leakage | IR | 1 | μA | @VRWM | 4 | ||
| Peak pulse power dissipation | PPPM | 1500 | W | 10/1000μs waveform | 3 | ||
| Steady state power dissipation | PM(AV) | 6.5 | W | TA=50℃ | 3 | ||
| Peak forward surge current | IFSM | 200 | A | 8.3ms single half sine-wave superimposed on rated load | 3 | ||
| Operating junction and storage temperature | TJ,TSTG | -55 | 150 | ℃ | 3 | ||
| Thermal resistance junction to lead | RθJL | 15 | ℃/W | typical | 3 | ||
| Thermal resistance junction to ambient | RθJA | 75 | ℃/W | typical | 3 | ||
| VBR Voltage Tolerance | -5 | 5 | % | A suffix: 5% VBR tolerance | 2 |
CAD (KiCad official)
- Symbol:
1.5SMC56A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC (KiCad packages3D, STEP)
- 3D model files:
1-5smc56a-etched.step/1-5smc56a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1-5smc56a.step/1-5smc56a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (8 pp, sha256
d243cb857c1e17b5, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).