The IRFZ44N N-Channel Power MOSFET is a high-performance power transistor designed for high-speed switching and power control applications. It is widely used in motor drivers, LED dimmers, inverters, SMPS, battery-powered devices, robotics, and DIY electronics. With its low ON resistance, 55V drain-source rating, and 49A continuous drain current, the IRFZ44N is an excellent choice for medium- to high-power switching applications.
Features
- Full Name: IRFZ44N N-Channel Power MOSFET
- Low ON-state resistance (RDS(on))
- High current handling capability
- Fast switching performance
- High efficiency for power applications
- Suitable for PWM switching
- Rugged TO-220 package
- Low gate drive power requirement
- Reliable and durable construction
- Fully avalanche rated
Specifications
| Specification |
Value |
| Product Type |
N-Channel Power MOSFET |
| Model |
IRFZ44N |
| Package |
TO-220 |
| Drain-Source Voltage (VDS) |
55V |
| Continuous Drain Current (ID) |
49A (at 25°C with proper heat sink) |
| Pulsed Drain Current (IDM) |
160A |
| Gate-Source Voltage (VGS) |
±20V |
| RDS(on) |
17.5 mΩ (Max @ VGS = 10V) |
| Maximum Power Dissipation |
94W |
| Operating Temperature |
-55°C to +175°C |
Pin Configuration
When viewed from the front (text facing you, pins downward):
| Pin |
Function |
| 1 |
Gate (G) |
| 2 |
Drain (D) |
| 3 |
Source (S) |
Note: The metal tab is internally connected to the Drain (D).
Applications / Uses
- DC motor control
- PWM motor speed controllers
- LED dimmers
- Battery management systems
- Switching power supplies (SMPS)
- Solar charge controllers
- Inverters
- Robotics
- Arduino power switching circuits
- DIY electronics projects
Advantages
- High current capability
- Low ON resistance for reduced power loss
- Fast switching operation
- Rugged TO-220 package
- High reliability
- Suitable for high-power switching
- Cost-effective solution
Size
- Package Type: TO-220
- Body Width: Approx. 10 mm
- Body Height: Approx. 15 mm
- Overall Height (with leads): Approx. 30 mm
- Lead Pitch: 2.54 mm
- Weight: Approximately 2 g
Package Includes
- 1 × IRFZ44N N-Channel Power MOSFET (TO-220)
Note: The IRFZ44N is not a logic-level MOSFET. It is designed to achieve its lowest ON resistance with approximately 10V gate drive. When driving it directly from 3.3V or 5V microcontrollers (such as ESP32 or Arduino), switching performance may be limited. For direct logic-level control, consider a logic-level MOSFET such as IRLZ44N or use a suitable gate driver.
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