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PRTR5V0U2X-FS

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FUXINSEMI ESD And Surge Protection (TVS/ESD), SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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PRTR5V0U2X-FS

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

PRTR5V0U2X-FS from FUXINSEMI, 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 side of the TVS array (zener anode in the pin-configuration diagram); the clamping voltage is specified from I/O pin to Ground, and leakage is tested pin 4 to pin 1.
2 I/O1 passive Protected I/O line, steered by the diode bridge with 0.8 pF typ (1.0 pF max) capacitance to ground and 0.4 pF typ (0.6 pF max) between I/O pins, with ±15 kV air and ±8 kV contact ESD protection per IEC 61000-4-2.
3 I/O2 passive Protected I/O line, steered by the diode bridge with 0.8 pF typ (1.0 pF max) capacitance to ground and 0.4 pF typ (0.6 pF max) between I/O pins, with ±15 kV air and ±8 kV contact ESD protection per IEC 61000-4-2.
4 VCC power_in Zener cathode node in the pin-configuration diagram (supply/reference side) with reverse working voltage 5.0 V max, breakdown 6.0 V min at 1 mA, and leakage 1 µA max at 5 V (pin 4 to pin 1).

Key specifications

Parameter Value
Manufacturer FUXINSEMI
Package SOT-143
Category Circuit Protection
Pins 4

CAD (KiCad official)

  • Symbol: PRTR5V0U2X-FS
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143 (KiCad packages3D, STEP)
  • 3D model files: prtr5v0u2x-fs-etched.step / prtr5v0u2x-fs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); prtr5v0u2x-fs.step / prtr5v0u2x-fs.glb are the bare package body.

Provenance

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

  • Datasheet: FUXINSEMI datasheet (4 pp, sha256 494f2c9f8fab80e0, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (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