IRLZ44NFBF Logic-level N-channel MOSFET (SEM144)

The IRLZ44NPBF is a logic-level N-channel MOSFET commonly used for switching motors, LEDs, relays, solenoids, and other DC loads from microcontrollers such as Arduino, ESP32, and Raspberry Pi (with some caveats at 3.3 V).

Key Specifications

Pinout (Front View)

With the flat side facing you and the legs pointing downward:

     ________
    |        |
    |        |
    |________|
      | | |
      G D S

• Pin 1: Gate (G)
• Pin 2: Drain (D)
• Pin 3: Source (S)
• Metal tab: Drain

Typical Applications

• PWM motor control
• LED strip switching
• Solenoid valves
• DC pumps
• Relays
• Power switching up to 55 V

Gate Drive

• ✅ Works well with 5 V logic (Arduino).
• ⚠️ Can often be used with 3.3 V logic, but it is not fully specified for low RDS(on) at 3.3 V. For high-current applications, a MOSFET designed specifically for 3.3 V gate drive may perform better.

If youre using it in a school project

The IRLZ44NPBF is an excellent choice for switching loads such as:

• DC motors
• Buzzers
• High-power LEDs
• Small pumps
• Electromagnets

using a microcontroller or a simple transistor driver circuit.