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Bourns MFR400299 PTC Resettable Fuse

Bourns MF-R series PTC resettable fuses provide reliable overcurrent protection for electronic circuits. These fuses are designed to automatically reset after a fault, minimizing downtime and preventing damage to sensitive components. They are commonly used in computers, peripherals, and other general electronics applications where overcurrent protection is critical. The devices are RoHS compliant and available in various current and voltage ratings to meet specific application needs. Their compact size and radial lead configuration make them easy to integrate into existing designs.

Authorized Distributors
Part No:MF-R400-2-99
Stock:0
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:
Part No:MF-R400-2-99
Stock:1500
Inv Date:05-28-2026
Price: Unit price: $0.5039
Buy/RFQ:
Part No:MF-R400-2-99
Stock:1500
Inv Date:05-28-2026
Price: Unit price: $0.5039
Buy/RFQ:

Bourns MFR400299 PTC Resettable Fuse Specifications:

  • V max (Volts): 60
  • I max (Amps): 40
  • Ihold (Amperes): 4.00
  • Itrip (Amperes): 8.00
  • Initial Resistance (Ohms): 0.010
  • 1 Hour (R1) Post-Trip Resistance (Ohms): 0.05
  • Max Time to Trip (Seconds): 20.0
  • Tripped Power Dissipation (Watts): 2.50
  • Operating/Storage Temperature: -40 °C to +85 °C
  • Max Device Surface Temperature in Tripped State: 125 °C
  • Halogen Free: Yes
  • RoHS Compliant: Yes

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Frequently Asked Questions

Where can I buy Bourns MFR400299?

You can click on the BUY or RFQ button to purchase MFR400299 from an authorized Bourns distributor.

How do I troubleshoot issues or seek technical support for part MFR400299?

You can download the MFR400299 datasheet or visit the Bourns website for support.

Who is the manufacturer of MFR400299?

Bourns

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