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Contents

README

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MX26631S

Wuxi Maxinmicro · Surge Protection Devices (SPDs) · SOP-8

MX26631S from Wuxi Maxinmicro, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IN power_in Power input from 4.5V to 40V recommended operating range or -0.3V to 60V absolute maximum.
2 IN power_in Power input from 4.5V to 40V recommended operating range or -0.3V to 60V absolute maximum.
3 GND power_in System ground pin.
4 UVLO input Undervoltage lockout threshold input; connect to GND for 15V default threshold or use resistor divider for 1.18V to 1.28V (rising) adjustable threshold.
5 SHDN input Shutdown control input; below 0.8V (typical) enters shutdown mode, above 1.44V resumes operation and resets fast-latched faults.
6 ILIM input Current limit setting resistor connection; connect 5kΩ to 100kΩ resistor to GND to set overload and short circuit current limit from 0.6A to 3A.
7 OUT power_out Power output supporting up to 3A continuous current with 20mΩ to 50mΩ ON resistance.
8 OUT power_out Power output supporting up to 3A continuous current with 20mΩ to 50mΩ ON resistance.

Key specifications

Parameter Value
Manufacturer Wuxi Maxinmicro
Package SOP-8
Category Circuit Protection
Pins 8

CAD (KiCad official)

  • Symbol: MX26631S
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: mx26631s-etched.step / mx26631s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mx26631s.step / mx26631s.glb are the bare package body.

Provenance

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

  • Datasheet: Wuxi Maxinmicro datasheet (12 pp, sha256 07146f4904aa3510, retrieved 2026-09-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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