IRFIBE30GPBF: Description, Features, and Applications
What is an IRFIBE30GPBF?
The IRFIBE30GPBF is a high-performance power MOSFET designed for efficient switching in high-power electronic applications. Manufactured by Infineon Technologies, this N-channel MOSFET is part of the HEXFET® Power MOSFET family, known for its excellent performance in managing high currents and low power loss. The IRFIBE30GPBF excels in applications requiring robust, reliable, and efficient power control, including industrial systems, automotive electronics, and power supplies.
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With its low on-resistance and fast switching capabilities, the IRFIBE30GPBF provides enhanced performance in high-frequency applications. The model is optimized for low conduction and switching losses, making it a preferred choice for engineers working on high-efficiency systems. Additionally, the IRFIBE30GPBF’s TO-220AB package ensures compactness, durability, and ease of integration into various designs.
Primary Features of IRFIBE30GPBF
The IRFIBE30GPBF is a high-performance MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) designed for various applications, particularly in power management and switching. Here are its primary features:
Type: N-channel MOSFET
Voltage Rating: 30V
Current Rating: Up to 50A continuous drain current
RDS(on): Low on-resistance, typically around 10 mΩ at VGS = 10V, which helps in reducing power losses during operation.
Gate Threshold Voltage (VGS(th)): Typically between 1V to 2.5V, allowing for efficient switching with low gate drive voltage.
Package Type: Available in a TO-220 package, which provides good thermal performance and ease of mounting.
Fast Switching Speed: Suitable for high-frequency applications due to its fast switching characteristics.
Thermal Resistance: Low thermal resistance ensures effective heat dissipation, enhancing reliability and performance in high-power applications.
Applications: Commonly used in DC-DC converters, motor drivers, and power management systems.
These features make the IRFIBE30GPBF an excellent choice for applications requiring efficient power handling and fast switching capabilities.
IRFIBE30GPBF Specifications
The IRFIBE30GPBF is a high-performance N-channel MOSFET designed for power applications, capable of handling high voltages and currents. Its low on-state resistance, fast switching times, and excellent thermal performance make it ideal for use in power management systems and motor drivers:
| Category | Specification |
| Type | N-channel MOSFET |
| Drain-Source Voltage (VDS) | 800V |
| Gate-Source Voltage (VGS) | ±20V |
| Continuous Drain Current (ID) | 1.4A at TC = 100°C, 2.1A at TC = 25°C |
| Pulsed Drain Current (IDM) | 8.4A |
| On-State Resistance (RDS(on)) | Typically 3.0Ω at VGS = 10V and ID = 1.3A |
| Total Gate Charge (Qg) | 78nC at VGS = 10V, ID = 4.1A, VDS = 400V |
| Power Dissipation (PD) | 35W at TC = 25°C |
| Operating Junction Temperature (TJ) | -55°C to +150°C |
| Thermal Resistance | Low thermal resistance for effective heat dissipation |
| Turn-On Delay Time (td(on)) | Typically 12ns |
| Turn-Off Delay Time (td(off)) | Typically 82ns |
| Rise Time (tr) | Typically 33ns |
| Fall Time (tf) | Typically 30ns |
| Package Type | TO-220 FULLPAK |
| Mounting Type | Through-hole (THT) |
| Dynamic dV/dt Rating | Enhances reliability in fast-switching applications |
| Body Diode Current (IS) | 2.1A |
| Body Diode Reverse Recovery Time (trr) | Ranges from 480 to 720ns depending on conditions |
Advantages of Using IRFIBE30GPBF
The IRFIBE30GPBF MOSFET offers several advantages that make it suitable for a variety of high-voltage applications. Here are the key benefits:

High Voltage Rating: With a drain-source voltage rating of 800V, the IRFIBE30GPBF is ideal for applications requiring robust voltage handling, such as power supplies and industrial equipment.
Low On-State Resistance (RDS(on)): The device features a low on-resistance of approximately 3.0Ω, which minimizes power losses during operation, enhancing efficiency in power management applications.
High Current Capability: It supports a continuous drain current of up to 2.1A, making it effective for various load conditions without overheating.
Dynamic dV/dt Rating: This feature allows the MOSFET to handle rapid voltage changes, making it suitable for high-speed switching applications.
Isolated Package Design: The TO-220FP package provides high isolation capability, equivalent to a 100-micron mica barrier, which simplifies thermal management and enhances safety in circuit designs.
Low Thermal Resistance: The low thermal resistance between the tab and external heat sink allows for efficient heat dissipation, reducing the risk of thermal runaway in high-power applications.
Wide Operating Temperature Range: The IRFIBE30GPBF can operate within a temperature range of -55°C to +150°C, ensuring reliability in diverse environmental conditions.
Versatile Applications: It is suitable for use in switch-mode power supplies, motor drivers, and other industrial applications, providing flexibility for designers.
These advantages make the IRFIBE30GPBF a reliable choice for engineers looking to implement efficient and robust power management solutions.
IRFIBE30GPBF Applications
The IRFIBE30GPBF MOSFET is widely used in various applications due to its high voltage rating and efficient performance. Here are the primary applications of the IRFIBE30GPBF:
Switch-Mode Power Supplies (SMPS): The IRFIBE30GPBF is commonly used in switch-mode power supplies for efficient voltage regulation and power conversion, ensuring minimal energy loss.
Industrial Equipment: Its robust design and high voltage capabilities make it suitable for various industrial applications, including motor control and automation systems.
Power Management Systems: The MOSFET is utilized in power management circuits, where it helps regulate and distribute power effectively across different components.
High Voltage Applications: With a drain-source voltage rating of 800V, it is ideal for applications that require handling high voltages safely.
Telecommunications Equipment: The device can be employed in telecommunications systems for signal isolation and power switching, enhancing the reliability of communication devices.
Consumer Electronics: It is also found in consumer electronics where efficient switching and thermal management are critical, such as in power adapters and chargers.
These applications leverage the IRFIBE30GPBF's characteristics, such as low on-resistance, high voltage isolation, and dynamic dV/dt rating, making it a versatile component in modern electronic designs.
IRFIBE30GPBF Equivalents
| Equivalent | Voltage Rating | Current Rating | Application | Features/Notes |
| Vishay 3V50K140 | Similar to IRFIBE30GPBF | Comparable to IRFIBE30GPBF | Power applications, high-voltage scenarios | Similar isolation characteristics and rugged design |
| Infineon IPW65R18C7L | Suitable for high-voltage | Efficient power management | High-voltage applications | Good thermal management properties, similar profile |
| IRF840 | 500V | 8A | Power supplies, motor control applications | Commonly used in motor control and power supply applications |
| IRF3205 | 55V | 110A | Lower voltage, high current applications | Suitable for high-current applications at lower voltages |
| STMicroelectronics STP8NK80Z | 800V | 8A | High-voltage applications | Low on-resistance, designed for high-voltage applications |
The IRFIBE30GPBF MOSFET has several equivalent alternatives that can be used for similar applications, especially in power management and high-voltage scenarios. Vishay 3V50K140 and Infineon IPW65R18C7L provide similar voltage and current ratings, along with features like rugged design and good thermal management. The IRF840 is a more common MOSFET with a lower voltage rating, suitable for power supplies and motor controls, while the IRF3205 offers high current handling but for lower-voltage applications. Lastly, the STP8NK80Z is another high-voltage option with low on-resistance. When selecting an equivalent, it is important to consider the specific application requirements such as voltage, current, switching speed, thermal properties, and package type.
IRFIBE30GPBF Compared to Other MOSFETs in Power Management
| Characteristic | IRFIBE30GPBF | IRF840 | IRF3205 | STP8NK80Z |
| Voltage Rating | 800V | 500V | 55V | 800V |
| Continuous Drain Current | 2.1A at 25°C | 8A | 110A | 8A |
| On-State Resistance (RDS(on)) | Approximately 3.0Ω at VGS = 10V | Higher RDS(on), leading to increased losses | 8mΩ, much lower RDS(on) for efficient operation | Low RDS(on) |
| Switching Characteristics | Rise Time: 33ns, Fall Time: 30ns | Slower switching speeds compared to newer MOSFETs | Faster switching times for high-frequency use | Comparable to IRFIBE30GPBF in switching speeds |
| Power Dissipation | Up to 35W with low thermal resistance | Similar thermal performance | Better for lower voltage, lower RDS(on) systems | Similar to IRFIBE30GPBF in power dissipation |
| Applications | Power supplies, industrial, telecommunications | Power supplies, motor control | Low-voltage, high-current applications | High-voltage applications, motor control |
The IRFIBE30GPBF is a high-voltage MOSFET designed for power management applications, offering robust performance in high-voltage scenarios. While its on-state resistance is higher than that of some newer MOSFETs like the IRF3205, it excels in high-voltage environments, making it suitable for applications such as switch-mode power supplies and telecommunications. The IRF3205, with its much lower RDS(on) and high current handling capability, is better suited for lower voltage, high current applications where efficiency is paramount. The IRF840 and STP8NK80Z MOSFETs offer similar voltage ratings to the IRFIBE30GPBF, but their performance differs in terms of thermal dissipation and switching speed. Choosing the right MOSFET depends on the specific needs of the application, particularly in terms of voltage rating, current demands, efficiency, and switching characteristics.
Working Principle of IRFIBE30GPBF
The IRFIBE30GPBF is an N-channel MOSFET that operates based on the principles of field-effect transistor technology. Below is a detailed explanation of its working principle.
Structure Overview
The IRFIBE30GPBF consists of three primary terminals:
- Source (S): Where the current enters the MOSFET.
- Drain (D): Where the current exits.
- Gate (G): Controls the flow of current between the source and drain.
The device is built on a p-type substrate, with heavily doped n-type regions forming the source and drain. The gate terminal is insulated from the channel by a thin layer of oxide, allowing for voltage control without direct electrical contact.
Operation Modes
The operation of the IRFIBE30GPBF can be understood in two primary states: OFF state and ON state.
1. OFF State
When no voltage is applied to the gate (VGS = 0V), the channel remains in its original p-type state. The depletion region between the n-type source and drain prevents current from flowing through the device.
In this state, the MOSFET behaves like an open switch, and minimal leakage current may flow due to minority carriers.
2. ON State
When a positive voltage is applied to the gate (VGS > VTH, where VTH is the threshold voltage, typically around 2V for this MOSFET), it creates an electric field that attracts electrons from the n-type source and drains regions into the p-type substrate directly beneath the gate.
This process inverts the p-type region to the n-type, forming a conductive channel between the source and drain. This channel allows electrons to flow freely from source to drain, effectively turning the MOSFET "ON."
The resistance of this channel, known as RDS(on), determines how much current can flow through when in this state. For IRFIBE30GPBF, RDS(on) is approximately 3.0Ω at VGS = 10V.
Current Flow
Once in the ON state, current flows from the drain to the source when a voltage is applied across these terminals (VDS). The current flow can be controlled by varying the gate voltage:
Increasing VGS decreases RDS(on), allowing more current to flow.
Conversely, decreasing VGS increases RDS(on), reducing current flow.
Body Diode
The IRFIBE30GPBF also features an intrinsic body diode formed by the p-n junction between the source and substrate. This diode allows current to flow from drain to source when reverse-biased, providing protection against inductive kickback in applications like motor drives.
In summary, the IRFIBE30GPBF operates by controlling a conductive channel formed between its source and drain through voltage applied to its gate terminal. This ability to switch between ON and OFF states makes it suitable for various power management applications, including switch-mode power supplies and motor control systems. Its efficient operation relies on low on-resistance and fast switching capabilities, making it a valuable component in modern electronic designs.
IRFIBE30GPBF Package

IRFIBE30GPBF Datasheet
Conclusion of IRFIBE30GPBF
The IRFIBE30GPBF power MOSFET is a high-performance component that can handle large currents and voltages. Its excellent thermal performance, small design, and low conduction losses make it a dependable choice for engineers looking for efficiency and longevity in industrial, automotive, and consumer electronics applications. Whether in motor drives or power supply, the IRFIBE30GPBF is a reliable, environmentally friendly option.
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