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CH913SR

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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CH913SR

COSEMITECH · Magnetic Sensors · SOT-23-3L

CH913SR 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 1.8 V to 5.25 V (abs max 6 V); a 0.1 uF external capacitor to ground is recommended.
2 OUT output Open-drain output pin that is pulled low when the magnetic field exceeds BOP and released below BRP, sinking 1 mA with VOL max 0.2 V (abs max IOUT 3 mA).
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 (operating) VCC 1.8 5.25 V Operating, TJ < 165°C 5
Output low voltage (on) VOL 0.1 0.2 V IOUT =1 mA 5
Output Leakage Current IOFF 1 μA VOUT = 5.5 V; Switch state = Off 5
Operate point Bop 20 35 55 Gauss VDD = 1.8V to 5.25V, TA = -40°C to 150°C 5
Release point Brp 10 25 50 Gauss VDD = 1.8V to 5.25V, TA = -40°C to 150°C 5
Supply Current (awake) CH913 ICC(awake) 1.1 1.6 mA During awake period, TA = 25°C, VCC=3.3V 5
Awake time CH913 Tawake 40 60 us note4 5
Period CH913 Tperiod 50 75 ms note4 5
Supply Current (sleep) CH913 ICC(sleep) 0.7 uA During sleep period, TA = 25°C, VCC=3.3V 5
Average supply current CH913 ICC(avg) 1.09 uA TA = 25°C, VDD = 1.8V 5
Average supply current CH913 ICC(avg) 1.62 uA TA = 25°C, VDD = 3.3V 5
Duty cycle CH913 D.C. 0.08 % 5
Chopping Frequency fC 500 kHz 5
Hysteresis Hys 10 Gauss VDD = 1.8V to 5.25V, TA = -40°C to 150°C 5
Supply Voltage VDD 6 V 3
VDD Reverse Voltage VRDD -0.3 V 3
Supply Current IDD 2 mA 3
Output Voltage VOUT -0.3 V max VDD+0.3 V 3
Output Current IOUT 3 mA 3
Operating Ambient Temperature TA -40 150 °C 3
Storage Temperature TS -50 150 °C 3
Junction temperature TJ -50 165 °C 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Two package styles provide a magnetically optimized package for most applications, SO-T23 and TO￾92S. Each package type is lead (Pb) free (suffix, -T), with a 100% matte-tin-plated leadframe. Cosemite 1

CAD (KiCad official)

  • Symbol: CH913SR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: ch913sr-etched.step / ch913sr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ch913sr.step / ch913sr.glb are the bare package body.

Provenance

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

  • Datasheet: COSEMITECH datasheet (9 pp, sha256 8cfcc827ab923dba, retrieved 2026-10-22, 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