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Contents

README

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LM-TESD5V0V4UCU6

Leiditech · ESD And Surge Protection (TVS/ESD) · SOT-363

LM-TESD5V0V4UCU6 from Leiditech, in a SOT-363. 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 Protected line 1 steering-diode connection to the TVS, rated for 5V reverse working voltage.
2 GND power_in Ground reference connected to the anode of the internal TVS zener diode.
3 I/O2 passive Protected line 2 steering-diode connection to the TVS, rated for 5V reverse working voltage.
4 I/O3 passive Protected line 3 steering-diode connection to the TVS, rated for 5V reverse working voltage.
5 VCC power_in Connected to the cathode of the internal TVS zener diode, which is the common rail of the steering diodes; the diagram shows no name for it.
6 I/O4 passive Protected line 4 steering-diode connection to the TVS, rated for 5V reverse working voltage.

Key specifications

Parameter Value
Manufacturer Leiditech
Package SOT-363
Category Circuit Protection
Pins 6

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Breakdown Voltage VBR 6 V IT = 1mA 2
Reverse Leakage Current IR 0.5 µA VRWM = 5V 2
Clamping Voltage VC 15 V IPP = 1A (8 x 20 µs pulse) 2
Clamping Voltage VC 20 V IPP = 5A (8 x 20 µs pulse) 2
Junction Capacitance CJ 0.8 pF V = 0V, f = 1MHz 2
Reverse Working Voltage VRWM 5 V 2
Peak Pulse Power Ppp 100 W 8/20µs, Tamb=25°C 1
ESD per IEC 61000-4-2 (Air) VESD -25 25 kV Tamb=25°C 1
ESD per IEC 61000-4-2 (Contact) VESD -20 20 kV Tamb=25°C 1
Operating Temperature Range TJ -55 125 °C 1
Storage Temperature Range TSTJ -55 150 °C 1

CAD (KiCad official)

  • Symbol: LM-TESD5V0V4UCU6
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: lm-tesd5v0v4ucu6-etched.step / lm-tesd5v0v4ucu6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm-tesd5v0v4ucu6.step / lm-tesd5v0v4ucu6.glb are the bare package body.

Provenance

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

  • Datasheet: Leiditech datasheet (3 pp, sha256 b17d2b08b2c126aa, retrieved 2026-10-23, 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