component
ESD5B3CM
Public Made by Adomby adom
MDD（Microdiode Electronics） ESD Protection Devices, SOD-523. 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
markdownESD5B3CM
MDD（Microdiode Electronics） · ESD Protection Devices · SOD-523
ESD5B3CM from MDD（Microdiode Electronics）, in a SOD-523. 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 (no polarity), protects one I/O line with 3.3V working voltage, 4.0-6.0V breakdown at 1mA and 38-45pF capacitance at 0V. |
| 2 | 2 | passive | Bidirectional TVS terminal 2 (no polarity), connect to ground or the other side of the protected line; rated 400W peak pulse power (8/20μs) and ±30kV IEC 61000-4-2 ESD. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MDD（Microdiode Electronics） |
| Package | SOD-523 |
| Category | TVS/Fuse/Board Level 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 | 4 | 6 | V | IT = 1mA | 2 | |
| Reverse Working Voltage | VRWM | 3.3 | V | 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 = 23A, tp = 8/20μs | 2 | |
| Junction Capacitance | CJ | 38 | 45 | pF | VR = 0V, f = 1MHz | 2 | |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | KV | 1 | ||
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 | 30 | KV | 1 | ||
| Peak Pulse Power | PPP | 400 | W | 8/20us | 1 | ||
| Operating Temperature | TOPT | -55 | 150 | °C | 1 | ||
| Storage Temperature | TSTG | -55 | 150 | °C | 1 | ||
| Lead Solder Temperature | TL | 260 | °C | 10 sec. duration | 1 |
CAD (KiCad official)
- Symbol:
ESD5B3CM - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
esd5b3cm-etched.step/esd5b3cm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd5b3cm.step/esd5b3cm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD（Microdiode Electronics） datasheet (4 pp, sha256
f1606faade90fe30, 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).