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Bourns MFUSML4502 Low Ohmic PTC Resettable Fuse

Bourns MF-USML series are low ohmic PTC resettable fuses designed to provide overcurrent protection in a compact form factor. These fuses are ideal for thermal protection in lithium-ion and polymer battery packs, as well as applications like game consoles, PC motherboards, and USB port protection. They offer surface mount packaging for automated assembly, a small footprint, and ultra-low resistance. While currently available, Bourns recommends the enhanced MF-USML/X series for new designs. These resettable fuses are RoHS compliant and halogen-free, ensuring environmental responsibility. They are available in various models with different voltage, current, and resistance ratings to suit diverse application requirements.

Authorized Distributors
Source:Newark
Part No:MF-USML450-2
Stock:3421
Inv Date:05-28-2026
Price: Unit price: $0.554
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Part No:MF-USML450-2
Stock:0
Inv Date:05-29-2026
Price: N/A
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Part No:MF-USML450-2
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.48
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Part No:MF-USML450-2
Stock:3421
Inv Date:05-28-2026
Price: Unit price: $0.2764
Buy/RFQ:
Part No:MF-USML450-2
Stock:3421
Inv Date:05-28-2026
Price: Unit price: $0.2764
Buy/RFQ:

Bourns MFUSML4502 Low Ohmic PTC Resettable Fuse Specifications:

  • V max: 6 Volts
  • I max: 50 Amps
  • Ihold: 4.50 Amperes
  • Itrip: 9.00 Amperes
  • Rmin: 0.0010 Ohms
  • R1max: 0.0150 Ohms
  • Max Time To Trip: 22.50 Seconds
  • Tripped Power Dissipation: 0.8 Watts
  • Operating Temperature: -40 °C to +85 °C
  • Storage Condition: +40 °C max. / 70 % RH max.
  • UL File Number: E174545
  • TÜV Certifcate Number: R 50302873
  • Packaging: 5000 pcs. per reel

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Frequently Asked Questions

Where can I buy Bourns MFUSML4502?

You can click on the BUY or RFQ button to purchase MFUSML4502 from an authorized Bourns distributor.

How do I troubleshoot issues or seek technical support for part MFUSML4502?

You can download the MFUSML4502 datasheet or visit the Bourns website for support.

Who is the manufacturer of MFUSML4502?

Bourns

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