IRF420
N-channel enhancement-mode transistor ideal for high-voltage, high-frequency switching circuit
Inventory:4,904
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Part Number : IRF420
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Package/Case : TO-3
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Manufacturer : INFINEON
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Components Classification : Single FETs, MOSFETs
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Datesheet : IRF420 DataSheet (PDF)
Overview of IRF420
The IRF420 is a Power Field-Effect Transistor optimized for high-speed and low-voltage operations. It provides excellent performance for specific applications, such as analog and digital signal switching.
Pinout
The IRF420 pinout refers to the configuration and function of each pin in its TO-204AA package. This package typically includes a diagram showing the layout of the pins when viewed from the top down with pins named sequentially. Each pin on the IRF420 has a specific role such as power supply input, ground connection, or signal interface. The pinout details are crucial for integrating this component into a circuit as they ensure correct connections for optimal device performance. Designers and engineers must refer to the datasheet provided by the manufacturer to get accurate information regarding each pin's function and electrical characteristics.
Features
- I(D) of 2.5A: The IRF420 has a maximum current rating of 2.5 amps, making it suitable for demanding applications.
- V(DSS) of 500V: This power transistor can withstand a maximum voltage of 500 volts, ensuring reliable operation in high-voltage circuits.
- RDS(on) of 3ohm: The IRF420 has a low on-resistance of 3 ohms, reducing energy losses and heat generation during switching operations.
- 1-Element N-Channel: This power transistor is designed as a single-element device with an N-channel structure, making it suitable for various applications.
- Silicon Metal-Oxide Semiconductor FET: The IRF420 uses silicon metal-oxide semiconductor technology to ensure high performance and reliability in harsh environments.
Applications
- Analog and Digital Signal Switching: The IRF420 is suitable for switching analog and digital signals in various applications, including audio amplifiers, motor control circuits, and power supplies.
Equivalents
For similar functionalities, consider these alternatives to the IRF420:
- IRFZ44N: This power transistor has a similar configuration and performance characteristics as the IRF420.
- FETs from other manufacturers: Other manufacturers may offer equivalent or similar power transistors with different specifications and features.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Rohs Code | No | Part Life Cycle Code | Obsolete |
Ihs Manufacturer | HARRIS SEMICONDUCTOR | Package Description | FLANGE MOUNT, O-MBFM-P2 |
Reach Compliance Code | ECCN Code | EAR99 | |
HTS Code | 8541.29.00.95 | Case Connection | DRAIN |
Configuration | SINGLE WITH BUILT-IN DIODE | DS Breakdown Voltage-Min | 500 V |
Drain Current-Max (Abs) (ID) | 2.5 A | Drain Current-Max (ID) | 2.5 A |
Drain-source On Resistance-Max | 3 Ω | FET Technology | METAL-OXIDE SEMICONDUCTOR |
JEDEC-95 Code | TO-204AA | JESD-30 Code | O-MBFM-P2 |
JESD-609 Code | e0 | Number of Elements | 1 |
Number of Terminals | 2 | Operating Mode | ENHANCEMENT MODE |
Operating Temperature-Max | 150 °C | Package Body Material | METAL |
Package Shape | ROUND | Package Style | FLANGE MOUNT |
Polarity/Channel Type | N-CHANNEL | Power Dissipation Ambient-Max | 50 W |
Power Dissipation-Max (Abs) | 50 W | Pulsed Drain Current-Max (IDM) | 10 A |
Qualification Status | Not Qualified | Surface Mount | NO |
Terminal Finish | TIN LEAD | Terminal Form | PIN/PEG |
Terminal Position | BOTTOM | Transistor Application | SWITCHING |
Transistor Element Material | SILICON | Turn-off Time-Max (toff) | 60 ns |
Turn-on Time-Max (ton) | 33 ns |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy ?
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package ?
Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.
Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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Payment ?
For example, channels like VISA,MasterCard,Western Union,PayPal,MoneyGram,Rakuten Pay and more.
If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

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IRF420
N-channel enhancement-mode transistor ideal for high-voltage, high-frequency switching circuit
Inventory:
4,904
Warranty & Returns
After Sales Service
What after-sales service can be provided?
We provide an extended quality assurance period of 365 days for all components we offer. If a return or exchange becomes essential, kindly adhere to these guidelines:
·Initiate the request within 90 days after the item's shipment date.
·Coordinate the return or exchange with our team.
·Keep the items in their original condition as delivered.
·Please be aware that the feasibility of returning or exchanging items is contingent upon an evaluation of their actual state upon return.
Shipping
What channels of transportation of goods does the website support?
We usually send out our orders during business days using FedEx, SF, UPS, or DHL. We're also here to assist with alternative shipping options. Should you require additional information about shipping particulars or expenses, please don't hesitate to get in touch with us.







Package
How to ensure that the parts will be intact during transportation?
The items we ship will be packaged in anti-static bags, ensuring ESD anti-static protection, while the outer packaging boasts exceptional durability and sealing. We offer packaging options like Tape and Reel, Cut Tape, Tube, or Tray to suit your needs.




Payment
Which payment methods can be used to pay for goods
Accepted payment methods commonly encompass VISA, MasterCard, UnionPay, Western Union, PayPal, and various other options.
Should you have a particular payment preference or wish to seek information on rates and other specifics, please feel free to reach out to us.




