component
1.5SMC51A
Public Made by Adomby adom
MSKSEMI 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.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 4d ago |
| viewers | 4d ago |
| 1-5smc51a-etched.glb | 4d ago |
| 1-5smc51a-etched.step | 4d ago |
| 1-5smc51a-hero.glb | 4d ago |
| 1-5smc51a-hero.overlay.json | 4d ago |
| 1-5smc51a.glb | 4d ago |
| 1-5smc51a.kicad_mod | 4d ago |
| 1-5smc51a.kicad_sym | 4d ago |
| 1-5smc51a.lbr | 4d ago |
| 1-5smc51a.step | 4d ago |
| package.json | 4d ago |
| page.json | 4d ago |
| README.md | 4d ago |
1.5SMC51A
MSKSEMI · ESD And Surge Protection (TVS/ESD) · SMC
1.5SMC51A 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
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 | 48.5 | 53.6 | V | @IT=1 mA | 4 | |
| Reverse Stand-Off Voltage | VRWM | 43.6 | V | 4 | |||
| Maximum Clamping Voltage | VC | 70.1 | V | @IPP=21.7 A | 4 | ||
| Peak Pulse Current | IPP | 21.7 | A | 10/1000μs waveform | 4 | ||
| Reverse Leakage Current | IR | 1 | μA | @VRWM | 4 | ||
| Test Current | IT | 1 | mA | 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 |
CAD (KiCad official)
- Symbol:
1.5SMC51A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC (KiCad packages3D, STEP)
- 3D model files:
1-5smc51a-etched.step/1-5smc51a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1-5smc51a.step/1-5smc51a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (8 pp, sha256
d243cb857c1e17b5, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band 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).