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PSR05-MS

Public Made by Adom

by adom

MSKSEMI 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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PSR05-MS

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

PSR05-MS from MSKSEMI, 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 internal 5V (VRWM) TVS diode and the lower steering-diode rail.
2 I/O passive Protected line connection to the steering-diode midpoint, clamping ESD up to ±15kV air and ±8kV contact per IEC 61000-4-2.
3 I/O passive Protected line connection to the steering-diode midpoint, clamping ESD up to ±15kV air and ±8kV contact per IEC 61000-4-2.
4 VCC power_in Upper steering-diode rail, connected to the cathode of the internal TVS diode with VRWM of 5V.

Key specifications

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

CAD (KiCad official)

  • Symbol: PSR05-MS
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143 (KiCad packages3D, STEP)
  • 3D model files: psr05-ms-etched.step / psr05-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); psr05-ms.step / psr05-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 c56100f4153e16b6, retrieved 2026-10-09, 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