component
ESD3B3CM
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.
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
markdownESD3B3CM
MDD Microdiode Semiconductor · ESD And Surge Protection (TVS/ESD) · SOD-323
ESD3B3CM 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 | One terminal of the bidirectional TVS/ESD protection diode, which the datasheet rates for a 3.3 V reverse working voltage and ±30 kV IEC 61000-4-2 air and contact ESD; the datasheet does not name this pin or assign it a separate function. |
| 2 | 2 | passive | The other terminal of the bidirectional TVS/ESD protection diode, which the datasheet rates for a 3.3 V reverse working voltage and ±30 kV IEC 61000-4-2 air and contact ESD; the datasheet does not name this pin or assign it a separate function. |
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 |
|---|---|---|---|---|---|---|---|
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | kV | IEC 61000-4-2 (Air) | 1 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 | 30 | kV | IEC 61000-4-2 (Contact) | 1 | |
| Peak Pulse Power | PPP | 500 | W | 8/20us | 1 | ||
| Operating Temperature | TOPT | -55 | 150 | °C | 1 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 1 | ||
| Reverse Breakdown Voltage | VBR | 4 | 6 | V | IT = 1mA | 2 | |
| Reverse Leakage Current | IR | 1 | μA | VRWM = 3.3V | 2 | ||
| Clamping Voltage | VC | 6.5 | V | IPP = 1A, tp = 8/20μs | 2 | ||
| Clamping Voltage | VC | 13 | 18 | V | IPP = 28A, tp = 8/20μs | 2 | |
| Junction Capacitance | CJ | 30 | 45 | pF | VR = 0V, f = 1MHz | 2 | |
| Reverse Working Voltage | VRWM | 3.3 | V | 2 |
CAD (KiCad official)
- Symbol:
ESD3B3CM - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
esd3b3cm-etched.step/esd3b3cm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd3b3cm.step/esd3b3cm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD Microdiode Semiconductor datasheet (4 pp, sha256
30e624c707be2e14, retrieved 2026-11-03, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).