component
TPESD0502S4
Public Made by Adomby adom
TECH PUBLIC ESD And Surge Protection (TVS/ESD), SOT-143. 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
markdownTPESD0502S4
TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SOT-143
TPESD0502S4 from TECH PUBLIC, in a SOT-143. 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 | GND | power_in | Ground reference of the TVS array, common to the steering-diode anodes and the TVS diode anode; I/O ratings (5V VRWM max) are specified to this pin. |
| 2 | I/O1 | passive | Protected data line I/O (Note 1: I/O pins are pin 2 and 3), rated 5V max reverse working voltage to ground with 0.8pF max capacitance to ground. |
| 3 | I/O2 | passive | Protected data line I/O (Note 1: I/O pins are pin 2 and 3), rated 5V max reverse working voltage to ground with 0.4pF max capacitance between I/O pins. |
| 4 | VCC | power_in | Protected power line connection at the top of the steering-diode rails with the TVS diode to pin 1; the datasheet states it protects two data lines and one power line. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
TPESD0502S4 - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
tpesd0502s4-etched.step/tpesd0502s4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpesd0502s4.step/tpesd0502s4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (4 pp, sha256
c3516958b36beb50, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(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).