The IRF634 is a high-voltage N-Channel power MOSFET designed for efficient switching in power electronics. This guide covers the IRF634 pinout, features, specifications, operation, applications, and suitable equivalents in a clear, consistent format.
Introduction
The IRF634 is an enhancement-mode N-Channel MOSFET optimized for medium-to-high voltage switching tasks. With reliable current handling and a rugged TO-220 package, it is commonly used in power supplies, converters, and industrial control circuits where dependable switching and thermal performance are required.
Pin Configuration / Pinout of IRF634 MOSFET
Understanding the IRF634 Pinout Configuration
The IRF634 is housed in a TO-220 package with a standard G-D-S pin arrangement:
| Pin# | Pin Name |
|---|---|
| 1 | Gate |
| 2 | Drain |
| 3 | Source |
Correct connection of the IRF634 pinout is essential for stable and safe operation.
Note: DATASHEET DOWNLOAD button is provided end of this article.
IRF634 Key Features
- N-Channel enhancement-mode power MOSFET
- Designed for high-voltage switching applications
- Reliable current handling capability
- Fast switching performance
- Robust and durable TO-220 package
- Suitable for linear and switching power stages
IRF634 Specifications / Characteristics
- Drain-Source Voltage (VDS): 250V
- Gate-Source Voltage (VGS): ±20V
- Continuous Drain Current (ID): 8A
- Pulsed Drain Current (IDM): 32A
- Power Dissipation (PD): 80W
- Junction Temperature (Tj): 150°C
- Storage Temperature Range (Tstg): −65°C to +150°C
- Package Type: TO-220
- Pin Configuration: Gate – Drain – Source
Key Applications of IRF634 MOSFET
- Switch-mode power supplies (SMPS)
- DC-DC converters
- High-voltage switching circuits
- Motor control stages
- Industrial power regulation systems
IRF634 Equivalent / Alternatives
(Verify pin compatibility before using substitutions)
Equivalent MOSFETs: IRF630, IRF640
Alternative MOSFETs: STP9NK50Z, FQP8N25, FDP8N25
More Circuit Layouts
Working Principle of IRF634
The IRF634 operates by applying a positive voltage to the gate relative to the source. Once the gate-to-source voltage exceeds the threshold, a conductive channel forms, allowing current to flow from drain to source. Reducing the gate voltage below this level turns the device off, enabling efficient and fast power switching.
Frequently Asked Questions (FAQ)
Q1: What is the maximum drain-source voltage of IRF634?
The IRF634 supports up to 250V between drain and source.
Q2: What package does the IRF634 use?
It is available in a TO-220 package.
Q3: What is the IRF634 pin configuration?
The pin configuration is Gate-Drain-Source (G-D-S).
Q4: Is a heat sink necessary for IRF634?
A heat sink is recommended for high-power or continuous operation to maintain safe temperatures.
Conclusion
The IRF634 N-Channel MOSFET is a dependable choice for high-voltage power switching applications. Its balanced electrical ratings, fast switching behavior, and thermally efficient TO-220 package make it suitable for power supplies, converters, and industrial electronics where reliability is critical.
Datasheet of IRF634 MOSFET
Click the following Button below to download the datasheet of IRF634 :
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