component
PESD3V3L4UG
Public Made by Adomby adom
TECH PUBLIC ESD Protection Devices, SOT-353. 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
markdownPESD3V3L4UG
TECH PUBLIC · ESD Protection Devices · SOT-353
PESD3V3L4UG from TECH PUBLIC, in a SOT-353. 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 | ESD-protected line 1 with a steered diode path to the common pin 2, rated for ±20 kV air and ±15 kV contact discharge per IEC 61000-4-2 and 0.45 pF typical (0.7 pF max) capacitance to GND. |
| 2 | GND | power_in | Common ground connection shared by all four protection diodes, with a 3.3 V maximum reverse working voltage on the I/O lines relative to it. |
| 3 | I/O2 | passive | ESD-protected line 2 with a steered diode path to the common pin 2, rated for ±20 kV air and ±15 kV contact discharge per IEC 61000-4-2 and 0.45 pF typical (0.7 pF max) capacitance to GND. |
| 4 | I/O3 | passive | ESD-protected line 3 with a steered diode path to the common pin 2, rated for ±20 kV air and ±15 kV contact discharge per IEC 61000-4-2 and 0.45 pF typical (0.7 pF max) capacitance to GND. |
| 5 | I/O4 | passive | ESD-protected line 4 with a steered diode path to the common pin 2, rated for ±20 kV air and ±15 kV contact discharge per IEC 61000-4-2 and 0.45 pF typical (0.7 pF max) capacitance to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-353 |
| Category | TVS/Fuse/Board Level Protection |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
PESD3V3L4UG - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SOT-353 (KiCad packages3D, STEP)
- 3D model files:
pesd3v3l4ug-etched.step/pesd3v3l4ug-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pesd3v3l4ug.step/pesd3v3l4ug.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (4 pp, sha256
d6ac6cff50dfa2b6, retrieved 2026-10-28, 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).