SD03
Public Made by Adomby adom
MDD Microdiode Semiconductor 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.
| Name | Last updated |
|---|---|
| docs | 10d ago |
| viewers | 10d ago |
| package.json | 10d ago |
| page.json | 10d ago |
| README.md | 10d ago |
| sd03-etched.glb | 10d ago |
| sd03-etched.step | 10d ago |
| sd03-hero.glb | 10d ago |
| sd03-hero.overlay.json | 10d ago |
| sd03.glb | 10d ago |
| sd03.kicad_mod | 10d ago |
| sd03.kicad_sym | 10d ago |
| sd03.lbr | 10d ago |
| sd03.step | 10d ago |
SD03
MDD Microdiode Semiconductor · ESD And Surge Protection (TVS/ESD) · SOD-323
SD03 from MDD Microdiode Semiconductor, 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 | MDD Microdiode Semiconductor |
| 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 Stand-Off Voltage | VRWM | 3.3 | V | 2 | |||
| Breakdown Voltage | VB | 4 | V | IT=1 mA | 2 | ||
| Clamping Voltage | VC | 6.5 | V | @1A | 2 | ||
| Clamping Voltage | VC | 14 | V | @20A | 2 | ||
| Reverse Leakage Current | IR | 40 | µA | 2 | |||
| Capacitance | CT | 450 | pF | 2 | |||
| Peak Pulse Power | PPP | 350 | W | tp=8/20us waveform, TA=25°C | 1 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | V | TA=25°C; printed ±30 with K (kV) | 1 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 | 30 | V | TA=25°C; printed ±30 with K (kV) | 1 | |
| Operating Temperature | TOPT | -55 | 150 | °C | 1 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 1 | ||
| Lead Solder Temperature - Maximum | TL | 260 | °C | 10 second duration | 1 | ||
| Device Marking Test Current | IT | 1 | mA | 2 |
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 | Terminal: Matte tin plated. http://www.microdiode.com Page :2 | 1 |
CAD (KiCad official)
- Symbol:
SD03 - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
sd03-etched.step/sd03-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sd03.step/sd03.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD Microdiode Semiconductor datasheet (4 pp, sha256
10c3d65b4326cef2, 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).