component

CH424SR

Public Made by Adom

by adom

COSEMITECH Magnetic Sensors, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CH424SR

COSEMITECH · Magnetic Sensors · SOT-23-3L

CH424SR from COSEMITECH, in a SOT-23-3L. 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 VDD power_in Supply voltage pin; operating range 3.3V to 30V, absolute maximum 40V and reverse voltage -40V.
2 OUT output Open collector output pin; absolute maximum output voltage 40V and output current 25mA, saturation voltage max 0.4V at 20mA.
3 GND power_in Ground pin.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VDD 3.3 30 V -40 °C to 150 °C 5
Supply Current IDD 3.5 8 mA VDD = 5V 5
Output saturation voltage VDSon 0.4 V at 20mA, Gauss >120 5
Output Leakage Current IOFF 10 uA B<-120GS 5
Output rise time TR 1.5 uS VDD =12V at 25 °C, CL= 20 pF 5
Output fall time TF 1.5 uS VDD =12V at 25 °C, CL= 20 pF 5
CH424 Magnetic operating point BOP 5 30 55 Gauss TA=25oC 5
CH424 Magnetic release point BRP -55 -30 -5 Gauss TA=25oC 5
CH424 Magnetic hysteresis window BHYST 40 60 80 Gauss TA=25oC /BOP-BRP/ 5
Operating temperature T -40 150 °C 5
Storage temperature TS -40 150 °C 5
Supply Voltage VDD 40 V 3
VDD Reverse Voltage VRDD -40 V 3
Supply Current IDD 20 mA 3
Output Voltage VOUT -0.3 40 V 3
Output Current IOUT 25 mA 3
Operating Ambient Temperature TA -40 150 °C 3
Storage Temperature TS -50 150 °C 3
Junction temperature TJ -50 165 °C 3
Maximum Switching Frequency FSW 100 KHz 5
Thermal resistance CH424S/CH424NS RTH 303 °C /W SOT-23-3L 5
ESD HBM -4000 4000 V All pins, HBM 100pF, 1.5 kohm 4
ESD MM -200 200 V All pins, MM C=200pF, R=0Ω 4
ESD CDM -750 750 V All pins, CDM 4

CAD (KiCad official)

  • Symbol: CH424SR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: ch424sr-etched.step / ch424sr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ch424sr.step / ch424sr.glb are the bare package body.

Provenance

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

  • Datasheet: COSEMITECH datasheet (10 pp, sha256 8ef51b5e2e67fef1, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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