component
BSD3C031L2-MS
Public Made by Adomby adom
MSKSEMI ESD And Surge Protection (TVS/ESD), SOD-323. 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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PCB Footprint
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Datasheet
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Contents
README
markdownBSD3C031L2-MS
MSKSEMI · ESD And Surge Protection (TVS/ESD) · SOD-323
BSD3C031L2-MS from MSKSEMI, in a SOD-323. 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 | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Working Voltage | VRWM | 3.3 | V | 3 | |||
| Reverse Breakdown Voltage | V(BR)R | 5 | 8 | V | IR = 1mA | 3 | |
| Reverse Leakage Current | IR | 0.5 | A | VR = 3.3V | 3 | ||
| Clamping voltage | VC | 9.5 | V | IPP = 1A, TP=8/20us | 3 | ||
| Clamping voltage | VC | 19 | V | IPP = 20A, TP=8/20us | 3 | ||
| Junction capacitance | Cj | 1 | 1.5 | F | VR =0V, f =1MHz | 3 | |
| Peak Pulse Power | PPP | 380 | W | tp=8/20μs waveform | 3 | ||
| Peak Pulse Current | IPP | 20 | A | 8/20µs | 3 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | KV | IEC 61000-4-2 air discharge | 3 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 | 30 | KV | IEC 61000-4-2 contact discharge | 3 | |
| Operating Temperature Range | TJ | -55 | 125 | °C | 3 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 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 | Lead Finish:Matte Tin Case Material: “Green” Molding Compound. UL Flammability Classification Rating 94V-0 | 2 |
CAD (KiCad official)
- Symbol:
BSD3C031L2-MS - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
bsd3c031l2-ms-etched.step/bsd3c031l2-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bsd3c031l2-ms.step/bsd3c031l2-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (6 pp, sha256
77199c8d57991937, retrieved 2026-10-27, 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).