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Bourns MFLR450 Overcurrent Protection Fuse

The MF-LR450 is a RoHS-compliant PTC resettable fuse designed for low resistance, rechargeable battery protection, and cellular phone applications. Its axial lead construction features weldable nickel terminals for reliable connections. Capable of operating currents up to 8.9 amps, the fuse provides effective overcurrent protection with low trip resistance. Suitable for laptop computers and other sensitive electronics, it offers enhanced safety, longevity, and easy integration into various electrical circuits. The device withstands environmental stresses such as humidity and vibration, ensuring consistent performance over its lifespan.

Authorized Distributors
Source:Newark
Part No:MF-LR450
Stock:33
Inv Date:05-28-2026
Price: Unit price: $0.907
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Source:DigiKey
Part No:MF-LR450
Stock:709
Inv Date:05-28-2026
Price: Unit price: $0.98
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Part No:MF-LR450
Stock:1943
Inv Date:05-29-2026
Price: Unit price: $0.82
Buy/RFQ:
Part No:MF-LR450
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.54
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Part No:MF-LR450
Stock:1000
Inv Date:05-28-2026
Price: Unit price: $0.3075
Buy/RFQ:
Part No:MF-LR450
Stock:1000
Inv Date:05-28-2026
Price: Unit price: $0.3075
Buy/RFQ:
Part No:MF-LR450
Stock:1182
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:

Bourns MFLR450 Overcurrent Protection Fuse Specifications:

  • Voltage Rating: 15 V
  • Maximum Operating Current: 8.9 A
  • Initial Resistance (Ri): 0.011 Ohms
  • Trip Resistance: 0.020 Ohms
  • Max Trip Resistance: 0.028 Ohms
  • Hold Current: 4.50 A at 23°C, derated for elevated temperatures
  • Trip Time at 23°C: Approximately 22.5 seconds
  • Environmental Resistance: Humidity aging +10%, vibration MIL-STD-883C
  • Temperature Range: -40°C to +85°C
  • Certification: RoHS compliant
  • Construction: Axial leaded with weldable nickel terminals
  • Application Suitability: Rechargeable battery packs, cellular phones, laptops
  • Agency Recognition: cULus listed
  • Dimensions: Length approximately 24 mm, diameter about 6.9 mm

Buy the Bourns MF-LR450 U–2013 Reliable Overcurrent Protection for Industrial Applications

Secure your electronic projects with the Bourns MF-LR450, a RoHS-compliant axial lead PTC resettable fuse. Designed for low resistance and reliable protection, it supports currents up to 8.9 amps, making it ideal for rechargeable batteries, cellular phones, and laptops. Its weldable nickel terminals ensure a secure connection, while its environmental resilience guarantees consistent performance over time. Whether you need a replacement or an upgrade, this fuse offers safety, durability, and easy integration, available for purchase online with fast delivery.

Get Bourns MF-LR450 today—built for precision and long-lasting durability in electronic safety devices.

Frequently Asked Questions

Where can I buy Bourns MFLR450?

You can click on the BUY or RFQ button to purchase MFLR450 from an authorized Bourns distributor.

How do I troubleshoot issues or seek technical support for part MFLR450?

You can download the MFLR450 datasheet or visit the Bourns website for support.

Who is the manufacturer of MFLR450?

Bourns

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