component
LCDA24C-1
Public Unreviewedby Ray
TECH PUBLIC ESD And Surge Protection (TVS/ESD), SOT-143. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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markdownLCDA24C-1
TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SOT-143
LCDA24C-1 from TECH PUBLIC, in a SOT-143. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IO1 | passive | Protected I/O line 1. Bidirectional TVS diode network to IO2/pin 4; clamps transient voltages above ±24 V VRWM to protect downstream circuitry. Ultra-low 0.8 pF (typ) junction capacitance to GND. |
| 2 | GND | passive | Ground / cathode common return for the TVS array. Connect to the local system ground plane with the shortest possible trace to minimize inductance during ESD events. |
| 3 | GND | passive | Second ground / cathode common return pin for the TVS array. Tied to pin 2 externally on the PCB to a solid GND plane. |
| 4 | IO2 | passive | Protected I/O line 2. Bidirectional TVS diode network to IO1/pin 1; clamps transient voltages above ±24 V VRWM. 0.8 pF (typ) junction capacitance keeps insertion loss low on high-speed lines. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
LCDA24C-1 - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (None pp, sha256
a65b49ac87834099, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).