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Bourns MFR400 Resettable Fuse

The product is a resettable PTC fuse designed for overcurrent protection in low voltage electronic circuits. Features include UL 94V-0 flame retardant epoxy insulation, RoHS compliance, halogen-free material, and robust environmental resistance including humidity aging, thermal shock, and vibration. Available in various lead and packaging options such as bulk, tape and reel, and Ammo-Pak. It operates effectively across temperatures from -40°C to +85°C, with reliable trip and hold currents, making it suitable for computers, automotive, and general electronic applications. Its durable construction ensures long-term performance and safety in sensitive electronic systems.

Authorized Distributors
Source:Newark
Part No:MF-R400
Stock:1610
Inv Date:05-28-2026
Price: Unit price: $0.587
Buy/RFQ:
Source:DigiKey
Part No:MF-R400
Stock:14209
Inv Date:05-28-2026
Price: Unit price: $0.62
Buy/RFQ:
Part No:MF-R400
Stock:4920
Inv Date:05-29-2026
Price: Unit price: $0.52
Buy/RFQ:
Part No:MF-R400
Stock:30
Inv Date:05-28-2026
Price: Unit price: $0.21
Buy/RFQ:
Part No:MF-R400
Stock:8987
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:

Bourns MFR400 Resettable Fuse Specifications:

  • Operating Temperature: -40°C to +85°C
  • Maximum Device Surface Temperature in Tripped State: 125°C
  • Environmental Resistance: Humidity aging, thermal shock, vibration, solvent resistance
  • Material: Flame retardant epoxy polymer meets UL 94V-0, halogen free
  • Lead Options: Radial leaded, straight or kinked leads, taping and reel packaging available
  • Electrical Characteristics: Hold current varies per model, trip resistance, UL certified, RoHS compliant
  • Package Options: Bulk, tape & reel, Ammo-Pak, compatible with IEC and EIA standards
  • Vibration and moisture sensitivity levels tested to MIL standards
  • ESD Classification: compliant with industry standards
  • Designed for low voltage power supplies, automotive, and general electronics protection

Buy the Bourns MF-R400 U+2013 Reliable Resettable Fuse for Industrial Applications

Purchase the Bourns MF-R400 resettable fuse online today and ensure reliable overcurrent protection for your electronic devices. This robust device offers high environmental resistance, UL certification, RoHS compliance, and various packaging options to meet your specific application requirements. With a broad temperature range and proven durability against humidity, thermal shock, and vibration, it is ideal for computers, automotive systems, and general electronics. Enjoy fast delivery and technical support when you buy directly from authorized distributors online, securing high-quality components for your projects.

Buy Bourns MF-R400 now and experience unmatched reliability and performance for your electronic protection needs.

Frequently Asked Questions

Where can I buy Bourns MFR400?

You can click on the BUY or RFQ button to purchase MFR400 from an authorized Bourns distributor.

How do I troubleshoot issues or seek technical support for part MFR400?

You can download the MFR400 datasheet or visit the Bourns website for support.

Who is the manufacturer of MFR400?

Bourns

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