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Bourns MFR500 PTC Resettable Fuse

The MF-R500 is a 5A radial leaded PTC resettable fuse with flame-retardant epoxy insulation, suitable for low voltage power supplies, computers, electronics, and automotive applications. Capable of withstanding temperatures from -40°C to 85°C, it provides reliable over-current protection and is RoHS compliant. Its epoxy polymer insulation meets UL94V-0 standards, ensuring safety and durability. Designed for easy installation, this device resets after fault removal, making it ideal for protecting electronic circuits from overcurrent faults in various industrial and consumer electronic devices.

Authorized Distributors
Source:Newark
Part No:MF-R500
Stock:2841
Inv Date:05-28-2026
Price: Unit price: $0.3
Buy/RFQ:
Source:DigiKey
Part No:MF-R500
Stock:6914
Inv Date:05-28-2026
Price: Unit price: $0.66
Buy/RFQ:
Part No:MF-R500
Stock:7556
Inv Date:05-29-2026
Price: Unit price: $0.55
Buy/RFQ:
Part No:MF-R500
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.79
Buy/RFQ:
Part No:MF-R500
Stock:4998
Inv Date:05-28-2026
Price: Unit price: $0.5192
Buy/RFQ:
Part No:MF-R500
Stock:4998
Inv Date:05-28-2026
Price: Unit price: $0.5192
Buy/RFQ:
Source:Arrow EU
Part No:MF-R500
Stock:6000
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:

Bourns MFR500 PTC Resettable Fuse Specifications:

  • Hold Current: 5A
  • Resistance: ≤ Rmax, typical resistance change +5% after trip
  • Trip Current: 7A at 23°C
  • Maximum Device Surface Temperature in Tripped State: 125°C
  • Operating Temperature Range: -40°C to +85°C
  • Material: Flame-retardant epoxy polymer meets UL 94V-0
  • Temperature Rating: -40°C to +85°C
  • Environmental Resistance: Humidity aging, thermal shock, solvent resistance, vibration
  • Lead Material: Sn/CuFe
  • Packaging: Bulk, tape and reel, Ammo-Pak options available
  • Dimensions: 12.7 mm device pitch, lead diameter approximately 0.81 mm
  • Certifications: UL Listed, RoHS compliant
  • Switching Type: Resettable PTC fuse, designed to protect low voltage circuits from overcurrent faults

Buy the Bourns Series MF-R PTC Resettable Fuse: MF-R500

Purchase the Bourns MF-R500 PTC resettable fuse online and enhance your circuit protection. This 5A device features epoxy insulation, UL94V-0 compliance, and operates from -40°C to 85°C. It's ideal for low voltage power supplies, computers, automotive, and general electronics, providing reliable, resettable over-current protection. Its flame-retardant epoxy ensures safety, while RoHS compliance supports environmentally friendly designs. Designed for easy installation, the MF-R500 ensures your circuits remain protected against overcurrent faults with durability and safety in mind, making it the perfect choice for professionals and enthusiasts alike.

Get Bourns MF-R500 today—built for reliable over-current protection and long-lasting durability in electronic systems.

Frequently Asked Questions

Where can I buy Bourns MFR500?

You can click on the BUY or RFQ button to purchase MFR500 from an authorized Bourns distributor.

How do I troubleshoot issues or seek technical support for part MFR500?

You can download the MFR500 datasheet or visit the Bourns website for support.

Who is the manufacturer of MFR500?

Bourns

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