myMectronic
myMectronic

A Premier B2B Part Search

Bourns MFRX250722 PTC Resettable Fuse

The Bourns MF-RX250/72 is a high-reliability PTC resettable fuse designed for overcurrent protection in low voltage applications up to 72V. Constructed with flame-retardant epoxy polymer, it meets UL 94 V-0 standards, ensuring safety in security, fire alarms, loudspeakers, and power transformers. It features precise electrical characteristics, including resistance and trip time, with environmental resilience such as operating temperature from -40°C to +85°C and humidity resistance. Its robust construction supports the demands of industrial, automotive, and electronic equipment, providing dependable, self-resetting overcurrent protection.

Authorized Distributors
Source:Newark
Part No:MF-RX250/72-2
Stock:2527
Inv Date:05-28-2026
Price: Unit price: $0.278
Buy/RFQ:
Source:DigiKey
Part No:MF-RX250/72-2
Stock:6304
Inv Date:05-28-2026
Price: Unit price: $0.33436
Buy/RFQ:
Part No:MF-RX250/72-2
Stock:7782
Inv Date:05-29-2026
Price: Unit price: $0.62
Buy/RFQ:
Part No:MF-RX250/72-2
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.5
Buy/RFQ:
Part No:MF-RX250/72-2
Stock:1000
Inv Date:05-28-2026
Price: Unit price: $0.3984
Buy/RFQ:
Part No:MF-RX250/72-2
Stock:1000
Inv Date:05-28-2026
Price: Unit price: $0.3984
Buy/RFQ:
Part No:MF-RX250/72-2
Stock:3
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:

Bourns MFRX250722 PTC Resettable Fuse Specifications:

  • Maximum Voltage: 72 Volts
  • Hold Current Range: 0.20 - 3.75 Amps
  • Resistance at 23°C: 0.20 - 0.08 Ohms depending on model
  • Trip Time at 23°C: Typically from 0.40 to 3.20 seconds
  • Temperature Range: -40°C to +85°C operating, storage up to +40°C
  • Environmental Resistance: Humidity test +85°C, 85% RH, 1000 hours, resistance change +5%
  • Thermal Shock: -40°C to +85°C, 10 cycles, resistance change +10%
  • Vibration: Meets MIL-STD-883C, Method 2007.1, no change
  • ESD Classification: Class 6 (AEC-Q200-2, HBM)
  • Packaging: Bulk, Tape & Reel, Ammo Pack options depending on model
  • Physical dimensions include lead diameter, length, and overall size per IEC and EIA standards, compatible with automated assembly
  • Design features: Reusable, overcurrent protection for electronic circuits, power transformers, loudspeakers, alarms

Buy the Bourns MF-RX250/72 – Reliable Overcurrent Fuse for Industrial Applications

Purchase the Bourns MF-RX250/72 online—an essential component designed for reliable overcurrent protection in low voltage circuits. Its robust construction ensures safety and durability for industrial, automotive, and electronic equipment, meeting strict UL, RoHS, and halogen-free standards. Ideal for security systems, loudspeakers, power transformers, and other sensitive devices, this resettable fuse provides fast response times and environmental resilience. Order now to safeguard your circuits efficiently with a dependable, self-repairing solution from Bourns.

Get Bourns MF-RX250/72 today—built for high reliability and long-lasting circuit protection in demanding electronic and industrial environments.

Frequently Asked Questions

Where can I buy Bourns MFRX250722?

You can click on the BUY or RFQ button to purchase MFRX250722 from an authorized Bourns distributor.

How do I troubleshoot issues or seek technical support for part MFRX250722?

You can download the MFRX250722 datasheet or visit the Bourns website for support.

Who is the manufacturer of MFRX250722?

Bourns

Bourns Part List

Browse and search other Bourns parts, locate datasheets and stock

Sponsored by