Home

Products

Discrete Semiconductor Products

Transistors

FETs, MOSFETs

Single FETs, MOSFETs

IRFS634B_FP001

Banner
productimage

IRFS634B_FP001

MOSFET N-CH 250V 8.1A TO220F

Manufacturer: onsemi

Categories: Single FETs, MOSFETs

Quality Control: Learn More

The onsemi IRFS634B-FP001 is an N-Channel Power MOSFET designed for high-efficiency switching applications. This device features a Drain-to-Source Voltage (Vdss) of 250 V and a continuous Drain current (Id) of 8.1 A at 25°C. With a maximum on-resistance (Rds On) of 450 mOhm at 4.05 A and 10 V, it offers low conduction losses. Key parameters include a Gate Charge (Qg) of 38 nC and Input Capacitance (Ciss) of 1000 pF, both specified at relevant voltage levels. The MOSFET is housed in a TO-220F-3 package, suitable for through-hole mounting and capable of dissipating up to 38 W. It operates reliably across a wide temperature range from -55°C to 150°C (TJ). This component finds utility in power supply designs, motor control, and general-purpose power switching within industrial and automotive sectors.

Additional Information

Series: -RoHS Status: RoHS CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:
Technical Details:
PackagingTube
Package / CaseTO-220-3 Full Pack
Mounting TypeThrough Hole
Operating Temperature-55°C ~ 150°C (TJ)
TechnologyMOSFET (Metal Oxide)
FET TypeN-Channel
Current - Continuous Drain (Id) @ 25°C8.1A (Tc)
Rds On (Max) @ Id, Vgs450mOhm @ 4.05A, 10V
FET Feature-
Power Dissipation (Max)38W (Tc)
Vgs(th) (Max) @ Id4V @ 250µA
Supplier Device PackageTO-220F-3
Drive Voltage (Max Rds On, Min Rds On)10V
Vgs (Max)±30V
Drain to Source Voltage (Vdss)250 V
Gate Charge (Qg) (Max) @ Vgs38 nC @ 10 V
Input Capacitance (Ciss) (Max) @ Vds1000 pF @ 25 V

Request a Quote

Name (required)

Phone (required)

Work Email (required)

Country (required)

Company Name (required)

CAPTCHA

By providing a telephone number and submitting the form, you are consenting to be contacted by SMS text message and agreeing to our Privacy Policy. Message frequency may vary. Message and data rates may apply. Reply STOP to opt out of further messaging. Reply HELP for more information.
Clients Also Buy
onsemi FAQs

onsemi manufactures power and analog semiconductor components focused on energy efficiency, sensing, and intelligent power management.

onsemi’s core components include:

  • Power semiconductors (MOSFETs, IGBTs, and SiC devices)
  • Power management ICs (PMICs)
  • Analog and mixed-signal ICs
  • Image sensors and sensing technologies
  • Signal conditioning and interface components
  • Discrete and module-based power solutions

onsemi specializes in energy-efficient and high-reliability semiconductor solutions for electrification and automation.

onsemi serves industries that require efficient power conversion, sensing, and high-performance electronics.

onsemi’s key industries include:

These industries rely on onsemi for power efficiency, system reliability, and advanced sensing capabilities.

onsemi is known for power, sensing, and energy-efficient semiconductor product lines used in automotive, industrial, and energy applications.

Key onsemi product lines include:

  • EliteSiC - silicon carbide (SiC) power devices for high-efficiency power conversion
  • EcoSpin - integrated motor driver solutions for industrial and automotive systems
  • Treo platform - intelligent power modules for automotive applications
  • Hyperlux image sensors - high-performance imaging solutions
  • AR series image sensors - CMOS sensors for automotive and industrial vision
  • NCP / NCV series - power management ICs and automotive-grade solutions
  • FD / FDM series MOSFETs - discrete power transistors
  • NB / NC series - signal conditioning and interface ICs
Frequently Asked Questions

As a full line supplier, we specialize in sourcing obsolete and hard to find electronic components for your projects.

After we receive your request submission, one of our account executives will reach out to your team to gather more information about your project requirements and ensure we tailor the order to your needs.

Once requirements such as date codes, quantities, target prices, testing requirements, and more are discussed, our purchasing team will secure stock through Microchip USA’s direct access to manufacturing partners’ excess inventory lists.

Our operations teams will handle logistics and fulfillment to ensure supply chain continuity, and our support team will provide clear communication throughout the process.

Our net terms for electronic component sourcing are flexible and vary by order. Our account executives will work with you to ensure our terms meet your company’s needs. We also offer scheduled shipments and inventory management solutions to ensure a steady supply of electronic components, maintain cash flow, and maximize warranty periods. We always offer a warranty on all tested parts. See our sales terms and conditions for more information.

We partner with industry-leading AS6171 & AS6081-certified third party testing labs to mitigate risk and support a wide array of end uses for your company’s requirements. Testing includes but isn’t limited to: Decapsulation & Internal Dye Verification. X-Ray Inspection & Analysis, External Visual Inspection, Surface Texture Analysis (SEM), and Electrical Pin Correlation.

Industry News
Component Articles