component
ESD3B5CM
Public Made by Adomby adom
MDD Microdiode Semiconductor ESD And Surge Protection (TVS/ESD), SOD-323. Pinout cross-checked by two models against the datasheet, 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 | 9d ago |
| viewers | 9d ago |
| esd3b5cm-etched.glb | 9d ago |
| esd3b5cm-etched.step | 9d ago |
| esd3b5cm-hero.glb | 9d ago |
| esd3b5cm-hero.overlay.json | 9d ago |
| esd3b5cm.glb | 9d ago |
| esd3b5cm.kicad_mod | 9d ago |
| esd3b5cm.kicad_sym | 9d ago |
| esd3b5cm.lbr | 9d ago |
| esd3b5cm.step | 9d ago |
| package.json | 9d ago |
| page.json | 9d ago |
| README.md | 9d ago |
ESD3B5CM
MDD Microdiode Semiconductor · ESD And Surge Protection (TVS/ESD) · SOD-323
ESD3B5CM 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 | 1 | passive | Bidirectional TVS terminal 1 (pin configuration shows pins 1 and 2, interchangeable), protects one I/O line with 5V working voltage (VRWM) and 5.8V to 7.8V breakdown at 1mA. |
| 2 | 2 | passive | Bidirectional TVS terminal 2 (pin configuration shows pins 1 and 2, interchangeable), connects to ground or the other side of the protected line, with ±30kV IEC 61000-4-2 ESD rating. |
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 Breakdown Voltage | VBR | 5.8 | 7.8 | V | IT = 1mA | 2 | |
| Reverse Leakage Current | IR | 1 | μA | VRWM = 5V | 2 | ||
| Clamping Voltage | VC | 9.8 | V | IPP = 1A, tp = 8/20μs | 2 | ||
| Clamping Voltage | VC | 15 | 20 | V | IPP = 25A, tp = 8/20μs | 2 | |
| Junction Capacitance | CJ | 33 | 40 | pF | VR = 0V, f = 1MHz | 2 | |
| Reverse Working Voltage | VRWM | 5 | V | 2 | |||
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | KV | TA=25°C | 1 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 | 30 | KV | TA=25°C | 1 | |
| Peak Pulse Power | PPP | 500 | W | 8/20us, TA=25°C | 1 | ||
| Operating Temperature | TOPT | -55 | 150 | °C | 1 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 1 |
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 | gold | Terminals: Gold plated, solderable per MIL-STD-750, method 2026 Cellular handsets and accessories | 1 |
CAD (KiCad official)
- Symbol:
ESD3B5CM - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
esd3b5cm-etched.step/esd3b5cm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd3b5cm.step/esd3b5cm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD Microdiode Semiconductor datasheet (4 pp, sha256
f68d70f914cb4af2, retrieved 2026-10-22, 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).