component
UET14A05L03-BK-ES
Public Made by Adomby adom
ElecSuper 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
markdownUET14A05L03-BK-ES
ElecSuper · ESD And Surge Protection (TVS/ESD) · SOT-143
UET14A05L03-BK-ES from ElecSuper, 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 | Connect to GND; this is the ground reference pin of the ESD protection diode. |
| 2 | IO | bidirectional | Connect to the I/O line to be protected; the datasheet gives I/O-to-I/O junction capacitance of 0.6 to 0.8 pF (VR=0V, f=1MHz). |
| 3 | IO | bidirectional | Connect to the second I/O line to be protected; the datasheet gives I/O-to-I/O junction capacitance of 0.6 to 0.8 pF (VR=0V, f=1MHz). |
| 4 | Vcc | power_in | Connect to Vcc as printed in the pin table; the datasheet gives no pin-specific voltage limit for this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ElecSuper |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Peak pulse power (tp=8/20us) | Ppk | 180 | W | tp=8/20us @25℃ | 2 | ||
| Peak pulse current (tp=8/20us) | IPP | 9 | A | tp=8/20us @25℃ | 2 | ||
| ESD (IEC61000-4-2 air discharge) | VESD | 15 | kV | IEC61000-4-2 air discharge @25℃ | 2 | ||
| ESD (IEC61000-4-2 contact discharge) | VESD | 15 | kV | IEC61000-4-2 contact discharge @25℃ | 2 | ||
| Junction temperature | TJ | 150 | ℃ | 2 | |||
| Operating temperature | TOP | -40 | 125 | ℃ | 2 | ||
| Storage temperature | TSTG | -55 | 150 | ℃ | 2 | ||
| Lead temperature | TL | 260 | ℃ | 2 | |||
| Clamping Voltage | VC | 8 | 10 | V | IPP=1A; tp=8/20us | 3 | |
| Clamping Voltage | VC | 15 | 18 | V | IPP=9A; tp=8/20us | 3 | |
| Junction Capacitance (I/O pin to I/O pin) | CJ | 0.6 | 0.8 | pF | VR=0V; f=1MHz; I/O pin to I/O pin | 3 | |
| Junction Capacitance (I/O pin to GND) | CJ | 1.2 | 1.6 | pF | VR=0V; f=1MHz; I/O pin to GND | 3 | |
| Reverse Stand-off Voltage | VRWM | 5 | V | 3 | |||
| Reverse Breakdown Voltage | VBR | 6 | V | IT=1mA | 3 | ||
| Reverse Leakage Current | IR | 1 | uA | VRWM=5V | 3 |
CAD (KiCad official)
- Symbol:
UET14A05L03-BK-ES - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
uet14a05l03-bk-es-etched.step/uet14a05l03-bk-es-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uet14a05l03-bk-es.step/uet14a05l03-bk-es.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ElecSuper datasheet (7 pp, sha256
7cfdfb714cf6287d, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).