component

MH281KUA

Public Made by Adom

by adom

MST Magnesensor Tech MST Hall Switches, TO-92S. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MH281KUA

MST Magnesensor Tech MST · Hall Switches · TO-92S

MH281KUA from MST Magnesensor Tech MST, in a TO-92S. 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 pin with a 3.0 V to 24.0 V operating range; absolute maximum supply is 27 V, and reverse voltage must not be applied to VDD.
2 GND power_in Ground reference pin; reverse voltage must not be applied to this pin.
3 Output output Output transistor pin, rated for 50 mA maximum output current and 27 V maximum output voltage, with reverse voltage on VOUT not allowed.

Key specifications

Parameter Value
Manufacturer MST Magnesensor Tech MST
Package TO-92S
Category Magnetic 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) VDD 3 24 V Operating 3
Supply Current IDD 2.5 5 mA B<BOP 3
Output Saturation Voltage VSat 500 mV IOUT = 20 mA, B>BOP 3
Output Leakage Current Ioff 10 uA B<BRP, VOUT = 20V 3
Operate Point BOP 175 250 Gauss 3
Output Rise Time TR 0.04 uS RL=1kΩ, CL =20pF 3
Output Fall Time TF 0.18 uS RL=1kΩ; CL =20pF 3
Release Point BRP 95 Gauss 3
Hysteresis BHYS 45 Gauss 3
Supply Voltage VDD 27 V 2
Output Voltage Vo 27 V 2
Reverse Voltage (VDD, VOUT) VDD, VOUT -0.3 V Do not apply reverse voltage to VDD and VOUT pin 2
Output Current IOUT 50 mA 2
Operating Temperature Range, K version Ta -40 125 ℃ K version 2
Storage Temperature Range Ts -55 150 ℃ 2
Maximum Junction Temperature Tj 150 ℃ 2
Thermal Resistance, junction-to-ambient (UA) θja 206 ℃/W UA (TO-92S) package 2
Thermal Resistance, junction-to-case (UA) θjc 148 ℃/W UA (TO-92S) package 2
Package Power Dissipation (UA) PD 606 mW UA (TO-92S) package 2

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 UA:TO-92S,VK:TO-92S(4pin),VF:TO-92S(5pin),SO:SOT-23, SQ:QFN-3,ST:TSOT-23,SN:SOT-553,SF:SOT-89(5pin) 1

CAD (KiCad official)

  • Symbol: MH281KUA
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92S (KiCad packages3D, STEP)
  • 3D model files: mh281kua-etched.step / mh281kua-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mh281kua.step / mh281kua.glb are the bare package body.

Provenance

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

  • Datasheet: MST Magnesensor Tech MST datasheet (5 pp, sha256 000000166c84d868, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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