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Contents

README

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ESDSR05

Yint · ESD And Surge Protection (TVS/ESD) · SOT-143

ESDSR05 from Yint, 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 Ground reference connected to the anode of the low-voltage TVS diode; in the USB example it is tied to ground.
2 I/O passive Protected I/O line steered by the low capacitance diodes (4 pF typical; 0.7 pF typ, 2.5 pF max at VR=0V, 1MHz), absorbing up to 25A (tp=8/20μs).
3 I/O passive Protected I/O line steered by the low capacitance diodes (4 pF typical; 0.7 pF typ, 2.5 pF max at VR=0V, 1MHz), absorbing up to 25A (tp=8/20μs).
4 REF passive Reference pin on the TVS cathode side (VRWM 5 V), connected to VBus/Vcc in the application examples.

Key specifications

Parameter Value
Manufacturer Yint
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 Current (tp =8/20μs) PPK 500 W tp=8/20μs 2
Peak Current (tp =8/20μs) IPP 25 A tp=8/20μs 2
IEC61000-4-2 (Contact) VESD 8 kV IEC61000-4-2 (Contact); printed as '>8' 2
IEC61000-4-2 (Air) VESD 15 kV IEC61000-4-2 (Air); printed as '>15' 2
Lead Soldering Temperature TL 260 °C 10 sec 2
Operating Temperature TJ -50 150 °C 2
Storage Temperature Range TSTG -50 150 °C 2
Reverse Stand-off Voltage VRWM 5 V 2
Reverse Breakdown Voltage VBR 6 V It = 1mA 2
Reverse Leakage Current IR 5 μA VRWM =5.0V, T=25℃ 2
Clamping Voltage VC 9.8 V IPP = 1A, tP = 8/20μs 2
Clamping Voltage VC 12 V IPP=10A, tP = 8/20μs 2
Junction Capacitance CJ 2.5 pF VR=0V, f = 1MHz 2

CAD (KiCad official)

  • Symbol: ESDSR05
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143 (KiCad packages3D, STEP)
  • 3D model files: esdsr05-etched.step / esdsr05-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); esdsr05.step / esdsr05.glb are the bare package body.

Provenance

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

  • Datasheet: Yint datasheet (5 pp, sha256 358696a5d2b4c93b, retrieved 2026-10-19, 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