Introduction
The MOSFETs IRF4905STRLPBF by Infineon are P-channel power MOSFETs designed for high-current switching and power management applications. The device is specified with a 55 V drain-to-source voltage rating and low on-state resistance, making it suitable for designs where efficient power switching is important. It is supplied in a surface-mount D2PAK package.
As part of Semiconductors, Discrete Semiconductors, Transistors, and MOSFETs, the IRF4905STRLPBF MOSFETs can be considered for power supplies, motor control, power conversion, and other high-current electronic switching applications.
Technical Specifications of IRF4905STRLPBF MOSFETs
General Specifications
Manufacturer: Infineon
Part Number: IRF4905STRLPBF
Product Type: P-Channel Power MOSFET
Technology: MOSFET
Drain-to-Source Voltage: 55 V
Continuous Drain Current: Up to 42 A at specified case conditions
Drain-Source On-Resistance: 20 mO maximum at 42 A, 10 V
Gate Threshold Voltage: 4 V maximum
Gate Charge: 180 nC at 10 V
Gate-to-Source Voltage: ±20 V maximum
Power Dissipation: 170 W at specified case conditions
Mounting Type: Surface Mount
Package: D2PAK / TO-263
Operating Junction Temperature: -55°C to +150°C
Series: HEXFET
Product Category: Semiconductors
Subcategory: Discrete Semiconductors
Product Family: Transistors
Component Type: MOSFETs
The IRF4905STRLPBF MOSFETs combine a P-channel configuration, low on-resistance, and high-current capability in a compact surface-mount package. These characteristics make them useful for Semiconductors, Discrete Semiconductors, Transistors, and MOSFETs applications.
Key Features of IRF4905STRLPBF MOSFETs
Design and Performance Benefits
P-channel power MOSFET configuration.
55 V drain-to-source voltage rating.
Low 20 mO maximum on-resistance under specified test conditions.
High continuous drain-current capability.
180 nC maximum gate charge at 10 V.
D2PAK surface-mount package.
Suitable for high-current switching applications.
Designed for efficient power switching.
HEXFET technology.
Suitable for demanding Semiconductors, Discrete Semiconductors, Transistors, and MOSFETs applications.
The low on-resistance of the IRF4905STRLPBF MOSFETs can help reduce conduction losses in suitable switching designs, while the D2PAK package provides a practical surface-mount option for power electronics.
Applications of IRF4905STRLPBF MOSFETs
Common Use Cases
Power supply circuits
DC power switching
Motor control
Power conversion
Battery-powered equipment
High-current switching circuits
Industrial control systems
Automotive electronics
Power management systems
Electronic switching applications
The IRF4905STRLPBF MOSFETs can be used in applications where P-channel switching and high-current handling are required. Their specifications make them relevant to Semiconductors, Discrete Semiconductors, Transistors, and MOSFETs applications.
How the IRF4905STRLPBF MOSFET Works
Switching Principle
A P-channel MOSFET controls current flow between its source and drain terminals through the voltage applied between the gate and source. When the gate-to-source voltage reaches the appropriate negative level, the MOSFET can turn on and provide a low-resistance path between the source and drain.
The low 20 mO maximum on-resistance specified for the IRF4905STRLPBF MOSFETs helps support efficient current conduction when operated under the specified conditions.
Installation and PCB Design Overview
Installation Guidelines
Verify the D2PAK PCB footprint before assembly.
Confirm the drain-to-source voltage requirement of the application.
Check the expected continuous and peak drain current.
Ensure the gate-drive voltage is within the specified limits.
Consider PCB copper area and thermal management for high-current operation.
Follow the manufacturer's recommended soldering profile.
Verify the MOSFET pin configuration before PCB assembly.
Evaluate switching losses and conduction losses during design validation.
Appropriate thermal and electrical design is important when using the IRF4905STRLPBF MOSFETs in high-current applications.
Use Case Example: High-Current Power Switching
Practical Implementation
Application: High-current DC power switching circuit.
Challenge: The design requires a P-channel MOSFET capable of handling substantial current while maintaining low conduction losses.
Solution: Engineers can use the IRF4905STRLPBF MOSFETs by Infineon as the high-side or power-switching element where the device's voltage, current, gate-drive, and thermal specifications are appropriate.
Result: The low on-resistance and high-current capability provide a practical solution for suitable power-switching designs.
This example demonstrates how the IRF4905STRLPBF MOSFETs can support electronic systems using Semiconductors, Discrete Semiconductors, Transistors, and MOSFETs.
Datasheet Information
The IRF4905 family documentation specifies a 55 V P-channel MOSFET, low on-resistance, high current capability, HEXFET technology, and D2PAK surface-mount packaging. The published electrical specifications should be reviewed carefully for the exact operating conditions, thermal limits, switching characteristics, safe operating area, and electrical ratings required by your application.
For complete electrical characteristics, maximum ratings, thermal specifications, switching parameters, mechanical dimensions, PCB recommendations, and application information, refer to the applicable product documentation before final component selection.
Why Buy IRF4905STRLPBF MOSFETs from X-On Electronics?
Purchasing IRF4905STRLPBF MOSFETs by Infineon from X-On Electronics provides several advantages:
Genuine Infineon products
Competitive pricing
Bulk purchasing options
Global sourcing support
Worldwide shipping
Professional customer support
Reliable sourcing for power semiconductor applications
Choose X-On Electronics for genuine Semiconductors, Discrete Semiconductors, Transistors, and MOSFETs products backed by dependable global service.
FAQs – IRF4905STRLPBF MOSFETs
What is the IRF4905STRLPBF used for?
The IRF4905STRLPBF MOSFETs are designed for high-current switching and power management applications, including power supplies, motor control, and power conversion.
Who manufactures the IRF4905STRLPBF?
The IRF4905STRLPBF is manufactured by Infineon.
Is the IRF4905STRLPBF a P-channel or N-channel MOSFET?
The IRF4905STRLPBF is a P-channel MOSFET.
What is the drain-to-source voltage rating?
The IRF4905STRLPBF MOSFETs have a 55 V drain-to-source voltage rating. (DigiKey)
What package does the IRF4905STRLPBF use?
The device uses a surface-mount D2PAK / TO-263 package. (DigiKey)
Where can I buy genuine IRF4905STRLPBF MOSFETs?
You can purchase genuine IRF4905STRLPBF MOSFETs from X-On Electronics with worldwide shipping and customer support.
Conclusion
The IRF4905STRLPBF MOSFETs by Infineon provide a P-channel power switching solution combining a 55 V voltage rating, low on-resistance, high current capability, and a compact D2PAK surface-mount package. These characteristics make the device suitable for a range of power switching and power management applications.
As an important component within Semiconductors, Discrete Semiconductors, Transistors, and MOSFETs, the IRF4905STRLPBF MOSFETs can be considered for power supplies, motor control, power conversion, industrial equipment, and other high-current electronic designs. Purchase genuine Infineon products from X-On Electronics for competitive pricing, reliable sourcing, and worldwide delivery.