component

CH423NSR

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 ch423nsr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers ch423nsr: viewers · Ray 1mo ago
ch423nsr-etched.fit.json ch423nsr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ch423nsr-etched.glb ch423nsr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ch423nsr-etched.step ch423nsr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ch423nsr.glb Publish 0.1.0 · Ray 1mo ago
ch423nsr.kicad_mod Publish 0.1.0 · Ray 1mo ago
ch423nsr.kicad_sym Publish 0.1.0 · Ray 1mo ago
ch423nsr.lbr Publish 0.1.0 · Ray 1mo ago
ch423nsr.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 ch423nsr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 17d ago

CH423NSR

COSEMITECH · Hall Sensor · SOT-23-3L

CH423NSR 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 3.3V to 30V, absolute max 40V, reverse-voltage rated to -40V. Typical supply current 3.5mA at VDD=5V (max 8mA).
2 OUT output Open-collector digital output pin. Drives low (VDSon <= 0.4V at 20mA sink) when magnetic switching threshold is crossed; otherwise floats (leakage <= 10uA). Requires external pull-up resistor (typ. 10kohm). Absolute max VOUT = 40V, IOUT = 25mA. Rise/fall time <= 1.5us with 20pF load.
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.

  • CH423NSR
  • CH423NSRNER
  • CH423NSRNTB

CAD (KiCad official)

  • Symbol: CH423NSR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: ch423nsr-etched.step / ch423nsr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ch423nsr.step / ch423nsr.glb are the bare package body.

Provenance

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

  • Datasheet: COSEMITECH datasheet (10 pp, sha256 9625e03b09468429, 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