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Contents

README

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CH441PNSR

COSEMITECH · Hall Sensor · SOT-23-3L

CH441PNSR from COSEMITECH, in a SOT-23-3L. 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 VDD power_in Supply voltage pin. Operating range 2.5V to 22V, absolute max 24V. Typical supply current 1.6 mA at VDD=3.3V.
2 OUT output Open-drain digital output pin with internal 10 kOhm pull-up resistor to VDD. Sinks up to 25 mA (absolute max), short-circuit protected (30-90 mA current limit). VOUT max 24V, saturation voltage 0.4V max at 20 mA.
3 GND power_in Ground pin, 0V reference for the device.

Key specifications

Parameter Value
Manufacturer COSEMITECH
Package SOT-23-3L
Category Sensor
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • CH441PNSR
  • CH441PNSRPNTB
  • CH441PNSRPNER

CAD (KiCad official)

  • Symbol: CH441PNSR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: ch441pnsr-etched.step / ch441pnsr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ch441pnsr.step / ch441pnsr.glb are the bare package body.

Provenance

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

  • Datasheet: COSEMITECH datasheet (15 pp, sha256 fe0b8d7fc332f97d, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF