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SPST 12V/20A MOSFET Switch (H0FR7)


SKU: H0FR7 Category: Tags: , , , , , , , ,

SPST 12V/20A MOSFET Switch

Stage: Testing

Out of stock


H0FR7 is a Single Pole Single Throw (SPST) 12V/20A MOSFET Switch module,  based on STMicroelectronics STD36P4LLF6 MOSFET P transistor, bi-directional current sense amplifier INA199A2DCKT, and STM32G0 MCU. 

  • The switch is SPST (Single Pole Single Throw) type STD36P4LLF6 :
    • This device is a P-channel Power MOSFET developed using the STripFET™ F6 technology, with a new trench gate structure. The resulting Power MOSFET exhibits very low RDS(on) in all packages.
  • The voltage-output, current-shunt monitors (also called current-sense amplifiers) are commonly used for overcurrent protection, precision-current measurement for system optimization, or in closed-loop feedback circuits. 
    • These devices operate from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All versions are specified from –40 °C to 125 °C, and offered in both SC70-6 and thin UQFN-10 packages.



  • STMicroelectronics STD36P4LLF6 MOSFET P transistor:
    • Very low on-resistance.
    •  Very low gate charge.
    • High avalanche ruggedness.
    • Low gate drive power loss.
  • 26V, bi-directional current sense amplifier INA199A2DCKT:
    • Wide Common-Mode Range: –0.3 V to 26 V.
    • Offset Voltage: ±150 µV (Maximum)
      (Enables Shunt Drops of 10-mV Full-Scale)
    • Accuracy:
      • Gain Error (Maximum Over Temperature):
        • ±1% (C Version)
        • ±1.5% (A and B Versions)
      • 0.5-µV/°C Offset Drift (Maximum)
      • 10-ppm/°C Gain Drift (Maximum)
    • Choice of Gains:
      • INA199x1: 50 V/V
      • INA199x2: 100 V/V
      • INA199x3: 200 V/V
    • Quiescent Current: 100 µA (Maximum)


  • STM32G0B1CEU6N 32-bit ARM Cortex-M0 MCU.
  • 8MHz external oscillator.
  • Five array ports and four power ports (+3.3V and GND).
  • Access to 5xUART, SWD, BOOT0, RESET.

Physical Properties

  • Shape: Hexagon
  • Size: 30 mm short diagonal, 17.32 mm side
  • Area: 7.8 cm^2
  • Weight: 1.3 g
  • Soldermask Color: Dark green
  • Surface Finish: ENIG (gold) or HASL-LF (tin)

    Hardware Release Notes


    • Initial hardware release.


    • Changed the STM32F091CBU6 MCU to STM32G0B1CEU6N.


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Quickstart Guide

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  • Schematics (PDF)
  • Hardware Design Files (Eagle)
  • Source Code (GitHub). Download a pre-compiled firmware HEX file here.
  • Documentation / Factsheet (PDF)
  • Projects & Examples: Please check our account on Hackster.io for demo projects and examples.