component

PESD3V3U1UT-TP

Public Made by Adom

by adom

TECH PUBLIC ESD Protection Devices, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PESD3V3U1UT-TP

TECH PUBLIC · ESD Protection Devices · SOT-23

PESD3V3U1UT-TP from TECH PUBLIC, in a SOT-23. 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 IO1 passive ESD-protected I/O line 1 (TVS diode to pin 3), 3.3 V reverse working voltage, 0.7 pF max to pin 3 and 0.35 pF typical to pin 2 at VR=0, f=1MHz.
2 IO2 passive ESD-protected I/O line 2 (TVS diode to pin 3), 3.3 V reverse working voltage, 0.7 pF max to pin 3 and 0.35 pF typical to pin 1 at VR=0, f=1MHz.
3 GND power_in Common cathode/return node of the two TVS diodes, connected to ground; the diagram shows pin 3 as the shared connection to both diodes.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23
Category TVS/Fuse/Board Level Protection
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
ESD per IEC 61000-4-2 (Air) VESD -20 20 kV 2
ESD per IEC 61000-4-2 (Contact) VESD -15 15 kV 2
Operating Temperature Range TJ -55 125 °C 2
Storage Temperature Range Tstg -55 150 °C 2
Forward Voltage VF 0.8 1.2 V IF = 10mA 2
Peak Pulse Power (8/20µs) Ppk 100 W 2
Peak Pulse Current (8/20µs) IPP 4 A 2
Reverse Working Voltage VRWM 3.3 V 2
Breakdown Voltage VBR 5.6 V IT = 1mA 2
Reverse Leakage Current IR 0.08 µA VRWM = 3.3V 2
Junction Capacitance (Pin 1 to Pin 3 or Pin 2 to Pin 3) CJ 0.7 pF VR=0, f=1MHz, Pin 1 to Pin 3 or Pin 2 to Pin 3 2
Junction Capacitance (Pin 1 to Pin 2) CJ 0.35 pF VR=0, f=1MHz, Pin 1 to Pin 2 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Lead Finish: Matte Tin Case Material: “Green” Molding Compound. 1

CAD (KiCad official)

  • Symbol: PESD3V3U1UT-TP
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: pesd3v3u1ut-tp-etched.step / pesd3v3u1ut-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pesd3v3u1ut-tp.step / pesd3v3u1ut-tp.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: TECH PUBLIC datasheet (4 pp, sha256 5f2fc5f741ad961b, retrieved 2026-11-04, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF