The IRFP140 is a robust N-Channel power MOSFET designed for high-efficiency switching and power control applications. This guide explains the IRFP140 pinout, key features, electrical specifications, working principle, common applications, and equivalent MOSFETs in a clear and practical format.
Introduction
The IRFP140 is an enhancement-mode N-Channel MOSFET widely used in power electronics requiring reliable performance under high current and voltage conditions. With its strong thermal handling and fast switching behavior, it is suitable for industrial power supplies, motor control circuits, and high-power amplifiers.
Pin Configuration / Pinout of IRFP140 MOSFET
Understanding the IRFP140 Pinout Configuration
The IRFP140 is available in a TO-220 package and uses a standard G-D-S pin arrangement:
| Pin# | Pin Name |
|---|---|
| 1 | Gate |
| 2 | Drain |
| 3 | Source |
Correct IRFP140 pinout identification ensures safe and efficient circuit operation.
Note: DATASHEET DOWNLOAD button is provided end of this article.
IRFP140 Key Features
- N-Channel enhancement-mode MOSFET
- High power handling capability
- Fast switching performance
- Low conduction losses
- Rugged structure for reliable operation
- TO-220 package for effective heat dissipation
IRFP140 Specifications / Characteristics
- Drain-Source Voltage (VDS): 100V
- Gate-Source Voltage (VGS): ±20V
- Continuous Drain Current (ID): 31A
- Pulsed Drain Current (IDM): 120A
- Power Dissipation (PD): 180W
- 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 IRFP140 MOSFET
- Switch-mode power supplies (SMPS)
- DC-DC converters
- Motor drivers and motor control circuits
- Power amplifiers
- High-current electronic switching
IRFP140 Equivalent / Alternatives
(Verify pin compatibility before using substitutions)
Equivalent MOSFETs: IRFP150, IRFP240
Alternative MOSFETs: IRF3710, IRF3415, IRF3205
More Circuit Layouts
Working Principle of IRFP140
The IRFP140 operates by applying a positive voltage to the gate relative to the source. Once the gate threshold is exceeded, a conductive channel forms between drain and source, allowing current to flow. Reducing the gate voltage below this level turns the device OFF, enabling efficient and controlled power switching.
Frequently Asked Questions (FAQ)
Q1: What type of MOSFET is IRFP140?
It is an N-Channel enhancement-mode power MOSFET.
Q2: Is IRFP140 suitable for high-power applications?
Yes, its high power dissipation rating makes it suitable for demanding power circuits.
Q3: Does IRFP140 need a heat sink?
A heat sink is strongly recommended for continuous high-current or high-power operation.
Q4: Can IRFP140 be used in audio amplifiers?
Yes, it is commonly used in power amplifier output stages.
Conclusion
The IRFP140 N-Channel MOSFET offers an excellent balance of power handling, efficiency, and reliability. With its standard TO-220 package, clear pin configuration, and wide application range, it is a dependable choice for modern power electronics and industrial designs.
Datasheet of IRFP140 MOSFET
Click the following Button below to download the datasheet of IRFP140 :
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