component
UET14A05L03
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
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownUET14A05L03
TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SOT-143
UET14A05L03 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 | Common ground side of the TVS array, the return for the lower steering diodes and the zener, with the IO-to-GND junction capacitance specified as 0.6 pF typ / 0.9 pF max. |
| 2 | IO1 | passive | Protected I/O line 1 connected between the steering diode pair, protected to ±25kV air / ±20kV contact ESD (IEC 61000-4-2) and 4A 8/20µs surge, with 0.3 pF typ IO-to-IO capacitance. |
| 3 | IO2 | passive | Protected I/O line 2 connected between the steering diode pair, protected to ±25kV air / ±20kV contact ESD (IEC 61000-4-2) and 4A 8/20µs surge, with 0.3 pF typ IO-to-IO capacitance. |
| 4 | VCC | power_in | Upper rail of the diode array where the steering diodes and the TVS zener connect, for the 5V operating voltage (VRWM 5V max, VBR 6V min at 1mA). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
UET14A05L03 - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
uet14a05l03-etched.step/uet14a05l03-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uet14a05l03.step/uet14a05l03.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (4 pp, sha256
c3a50c0418228e8d, retrieved 2026-11-04, 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).