component
SMC24-323
Public Made by Adomby adom
Leiditech ESD And Surge Protection (TVS/ESD), SOT-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
markdownSMC24-323
Leiditech · ESD And Surge Protection (TVS/ESD) · SOT-323
SMC24-323 from Leiditech, in a SOT-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 | I/O1 | passive | Protected line 1 (diode anode side in the pin configuration drawing), 24V working voltage, clamps to common pin 3 with ±30kV IEC 61000-4-2 ESD protection. |
| 2 | I/O2 | passive | Protected line 2 (diode anode side in the pin configuration drawing), 24V working voltage, clamps to common pin 3 with ±30kV IEC 61000-4-2 ESD protection. |
| 3 | COMMON | passive | Common pin shared by both TVS diode paths from pins 1 and 2, the datasheet does not label it as GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | SOT-323 |
| Category | Circuit Protection |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Clamping voltage (max 48 V at 3 A column) | Vc | 39 | 48 | V | VC @1A header; '(@A)' column = 3 | 2 | |
| Leakage current (max) | IR | 10 | 2 | ||||
| ESD immunity, air discharge (IEC 61000-4-2) | VESD | -30 | 30 | kV | Air discharge, IEC 61000-4-2 | 1 | |
| ESD immunity, contact discharge (IEC 61000-4-2) | VESD | -30 | 30 | kV | Contact discharge, IEC 61000-4-2 | 1 | |
| Peak pulse power | Ppp | 200 | W | 8/20µs | 1 | ||
| Operating temperature range | TJ | -55 | 125 | ℃ | 1 | ||
| Storage temperature range | TSTJ | -55 | 150 | ℃ | 1 | ||
| Breakdown voltage | VBR | 26.5 | V | IT = 1 mA | 2 | ||
| Reverse working voltage | VRWM | 24 | V | 2 | |||
| Capacitance | C | 18 | Pf | 2 |
CAD (KiCad official)
- Symbol:
SMC24-323 - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
smc24-323-etched.step/smc24-323-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smc24-323.step/smc24-323.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Leiditech datasheet (3 pp, sha256
143b2517fb835e17, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).