The IRFZ46 is a high-current N-Channel Power MOSFET widely used in power switching applications. This article explains the IRFZ46 pinout, features, specifications, working principle, applications, and suitable alternatives in a clear 9-heading format.
Introduction
The IRFZ46 is an enhancement-mode N-Channel MOSFET designed for low-voltage, high-current power control. Its robust TO-220 package and efficient switching behavior make it a popular choice in automotive electronics, power supplies, and motor control circuits.
Pin Configuration / Pinout of IRFZ46 MOSFET
Understanding the IRFZ46 Pinout Configuration
The IRFZ46 is housed in a TO-220 package with a standard G-D-S arrangement:
| Pin# | Pin Name |
|---|---|
| 1 | Gate |
| 2 | Drain |
| 3 | Source |
Correct identification of the IRFZ46 pinout is essential for reliable operation.
Note: DATASHEET DOWNLOAD button is provided end of this article.
IRFZ46 Key Features
- N-Channel enhancement-mode MOSFET
- Designed for high-current switching
- Fast switching performance
- Low conduction losses
- Rugged and reliable operation
- Easy heat-sink mounting with TO-220 package
IRFZ46 Specifications / Characteristics
- Drain-Source Voltage (VDS): 50V
- Gate-Source Voltage (VGS): ±20V
- Continuous Drain Current (ID): 50A
- Pulsed Drain Current (IDM): 220A
- Power Dissipation (PD): 150W
- Junction Temperature (Tj): 175 °C
- Storage Temperature Range (Tstg): −55 °C to +175 °C
- Package Type: TO-220
- Pin Configuration: Gate – Drain – Source
Key Applications of IRFZ46 MOSFET
- DC motor drivers
- Automotive power circuits
- High-current switching stages
- Battery management systems
- Power inverters and converters
IRFZ46 Equivalent / Alternatives
(Verify pin compatibility before using substitutions)
Equivalent MOSFETs: IRFZ44, IRFZ48
Alternative MOSFETs: IRLZ44N, FQP30N06, IRF3205
More Circuit Layouts
Working Principle of IRFZ46
The IRFZ46 operates by applying a positive voltage to the gate relative to the source. When the gate voltage exceeds the threshold, a conductive channel forms between drain and source, allowing current flow. Removing the gate voltage breaks the channel, turning the MOSFET OFF and stopping current flow.
Frequently Asked Questions (FAQ)
Q1: Is IRFZ46 a logic-level MOSFET?
No, it requires a higher gate drive voltage than typical logic-level signals.
Q2: Can IRFZ46 handle high surge currents?
Yes, it supports high pulsed drain current when properly cooled.
Q3: Does IRFZ46 require a heat sink?
A heat sink is recommended for high-current or continuous operation.
Q4: What is the package type of IRFZ46?
The IRFZ46 is available in a TO-220 package.
Conclusion
The IRFZ46 N-Channel MOSFET is a powerful and reliable component for demanding power-switching applications. With high current capability, solid thermal performance, and a standard TO-220 package, it is well suited for industrial, automotive, and DIY power electronics designs.
Datasheet of IRFZ46 MOSFET
Click the following Button below to download the datasheet of IRFZ46 :
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