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Contents

README

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OH37

Nanjing Ouzhuo Tech · Linear Hall Sensors · SOT-23

OH37 from Nanjing Ouzhuo Tech, in a SOT-23. 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 VCC power_in Supply input, operating range 4.5 V to 24 V (Pin1.Vcc), with internal reverse-voltage protection.
2 GND power_in Ground pin of the Hall switch (Pin2.GND).
3 OUT output Open-collector output (Pin3.Vout) needing an external pull-up resistor to supply, sinking up to 25 mA with VOL of 200 mV typ and 400 mV max at Vcc=5 V, RL=1 kΩ.

Key specifications

Parameter Value
Manufacturer Nanjing Ouzhuo Tech
Package SOT-23
Category Magnetic Sensors
Pins 3

CAD (KiCad official)

  • Symbol: OH37
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: oh37-etched.step / oh37-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); oh37.step / oh37.glb are the bare package body.

Provenance

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

  • Datasheet: Nanjing Ouzhuo Tech datasheet (3 pp, sha256 d2e1df9c40bae9f8, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-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