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Ray Publish 0.1.0 28999be 8d ago

KTM1331MC-ST3

CONNTEK · Hall Switches · SOT-23-3L

KTM1331MC-ST3 from CONNTEK, 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 input; the datasheet gives an operating supply range of 1.8 V to 5.5 V, with an absolute maximum of 6 V and a reverse supply limit of -0.3 V, and a 100 nF capacitor placed close to this pin is recommended for filtering.
2 OUTPUT output Switch output that goes low when the magnetic field exceeds BOP and high when it falls below BRP, with a maximum output drive current of 5 mA.
3 GND power_in Ground pin.

Key specifications

Parameter Value
Manufacturer CONNTEK
Package SOT-23-3L
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
电源电压 Supply voltage (operating state) VDD 1.8 5.5 V 工作状态 6
供电电压范围 Supply voltage range (chip operating) VDD 1.8 5.5 V 芯片工作 5
工作温度范围 Operating temperature range (chip operating) TA -40 125 °C 芯片工作 5
磁场工作点 Magnetic operate point BOP 12 17 22 Gauss TA=+25℃, VDD=3.0V 7
磁场释放点 Magnetic release point BRP -22 -17 -12 Gauss TA=+25℃, VDD=3.0V 7
平均电流 Average current IDD(AVG) 500 600 800 nA TA=+25℃, VDD=3.0V 6
唤醒状态电流 Awake-state current IDD(Awake) 1 1.9 2.8 μA TA=+25℃, VDD=3.0V 6
输出低电平 Output low voltage VOL 0.008 0.05 V IOUT=1mA 6
供电电压 Supply voltage (absolute maximum) VDD 6 V 5
反向电源电压 Reverse supply voltage VDD_REV -0.3 V 5
输出驱动电流 Output drive current IOUTPUT 5 mA 5
磁感应强度 Magnetic flux density B 3000 Gauss <5min 5
存储温度范围 Storage temperature range TSTG -50 150 °C 5
结点最高耐温 Maximum junction temperature TJ 150 °C 5
回流焊温度 Reflow soldering temperature T reflow 260 °C 5
休眠状态电流 Sleep-state current IDD(Sleep) 148 nA TA=+25℃, VDD=3.0V 6
周期 Period (operating state) TPERIOD 625 μs 工作状态 6
采样频率 Sampling frequency (operating state) FS 1600 Hz 工作状态 6
磁滞 Hysteresis (/BOP/-/BRP/) BHY 34 Gauss 7

CAD (KiCad official)

  • Symbol: KTM1331MC-ST3
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: ktm1331mc-st3-etched.step / ktm1331mc-st3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ktm1331mc-st3.step / ktm1331mc-st3.glb are the bare package body.

Provenance

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

  • Datasheet: CONNTEK datasheet (14 pp, sha256 fb5754a98f3fc29a, retrieved 2026-10-20, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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