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CH444SR

Public Made by Adom

by adom

COSEMITECH Hall Sensor, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs ch444sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers ch444sr: viewers · Ray 1mo ago
ch444sr-etched.fit.json ch444sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ch444sr-etched.glb ch444sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ch444sr-etched.step ch444sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ch444sr.glb Publish 0.1.0 · Ray 1mo ago
ch444sr.kicad_mod Publish 0.1.0 · Ray 1mo ago
ch444sr.kicad_sym Publish 0.1.0 · Ray 1mo ago
ch444sr.lbr Publish 0.1.0 · Ray 1mo ago
ch444sr.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 11d ago
README.md ch444sr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 18d ago

CH444SR

COSEMITECH · Hall Sensor · SOT-23-3L

CH444SR 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 2.5 V to 22 V; absolute maximum 24 V. Reverse-battery protected down to -22 V. Max supply current 20 mA.
2 OUT output Open-collector output pin. Sinks up to 25 mA (Iout max). Output voltage range -0.3 V to 24 V. Requires external pull-up resistor to VDD.
3 GND power_in Ground reference pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • CH444SR
  • CH444SRTB
  • CH444SRER

CAD (KiCad official)

  • Symbol: CH444SR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: ch444sr-etched.step / ch444sr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ch444sr.step / ch444sr.glb are the bare package body.

Provenance

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

  • Datasheet: COSEMITECH datasheet (15 pp, sha256 bb180a03995d8124, 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