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Bourns® Multifuse® PPTC Resettable Fuses

Almost anywhere there is a low-voltage power source and a load, a Multifuse® PPTC  Resettable Fuse can be used. The fact that these protection devices reset automatically sets them apart among circuit protection devices. Circuit designers know there are circumstances they have no control over which can result in potentially damaging overcurrent conditions.

  • Surface Mount (SMD), Radial Leaded (Through hole) and Axial Leaded (Strap) package options
  • Unlike one-time fuses, PPTCs do not need to be replaced
  • Overentcurrent events will not shut down the system
  • Fewer service calls mean lower warranty costs and better product quality
  • Avoids possible damage to the circuit by incorrect fuse replacement
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244 Products

    MF-R300-0-99
    Data Sheet
    MF-R300-0-99 Bourns
    PTC Resettable Fuse 3A(hold) 6A(trip) 30V 40A 2W 10.8s 0.02Ohm Radial 12 X 3 X 18.3mm Bag Automotive
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    Discontinued
    MF-R300-2
    Data Sheet
    MF-R300-2 Bourns
    PTC Resettable Fuse 3A(hold) 6A(trip) 30V 40A 2W 10.8s 0.02Ohm Radial 12 X 3 X 18.3mm T/R Automotive
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    In Stock: 9000
    Immediately
    3,000
    $0.4867
    6,000
    $0.4673
    12,000
    $0.4661
    24,000 +
    $0.4649
    MF-R400
    Data Sheet
    MF-R400 Bourns
    PTC Resettable Fuse 4A(hold) 8A(trip) 30V 40A 2.5W 12.7s 0.01Ohm Radial 14.4 X 3 X 24.8mm Bulk Automotive
    VIEW PRODUCT
    In Stock: 5657
    Immediately
    50
    $0.3881
    500
    $0.2726
    1,000
    $0.2537
    3,000
    $0.2301
    6,000 +
    $0.2271
    MF-R400-0-99
    Data Sheet
    MF-R400-0-99 Bourns
    PTC Resettable Fuse 4A(hold) 8A(trip) 30V 40A 2.5W 12.7s 0.01Ohm Radial 14.4 X 3 X 24.8mm Bag Automotive
    VIEW PRODUCT
    Discontinued
    MF-R400-2
    Data Sheet
    MF-R400-2 Bourns
    PTC Resettable Fuse 4A(hold) 8A(trip) 30V 40A 2.5W 12.7s 0.01Ohm Radial 14.4 X 3 X 24.8mm T/R Automotive
    VIEW PRODUCT
    4 Weeks
    750
    $0.3185
    1,500
    $0.3156
    2,250
    $0.3132
    3,000
    $0.3124
    6,000
    $0.3117
    MF-R400-2-99
    Data Sheet
    MF-R400-2-99 Bourns
    PTC Resettable Fuse 4A(hold) 8A(trip) 30V 40A 2.5W 12.7s 0.01Ohm Radial 14.4 X 3 X 24.8mm T/R Automotive
    VIEW PRODUCT
    In Stock: 1500
    Immediately
    1
    $0.5409
    3,000
    $0.4917
    3,226
    $0.4655
    8,065
    $0.4518
    24,194 +
    $0.4255
    MF-R500
    Data Sheet
    MF-R500 Bourns
    PTC Resettable Fuse 5A(hold) 10A(trip) 30V 40A 3W 14.5s 0.01Ohm Radial 17.4 X 3 X 24.9mm Bulk Automotive
    VIEW PRODUCT
    In Stock: 4798
    Immediately
    50
    $0.4393
    500
    $0.3269
    1,000
    $0.2993
    3,000
    $0.2451
    6,000
    $0.2432
    MF-R500-0-99
    Data Sheet
    MF-R500-0-99 Bourns
    PTC Resettable Fuse 5A(hold) 10A(trip) 30V 40A 3W 14.5s 0.01Ohm Radial 17.4 X 3 X 24.9mm Bag Automotive
    VIEW PRODUCT
    In Stock: 521
    Immediately
    40
    $0.954
    50
    $0.945
    100
    $0.748
    250
    $0.654
    500
    $0.597
    MF-R500-2
    Data Sheet
    MF-R500-2 Bourns
    PTC Resettable Fuse 5A(hold) 10A(trip) 30V 40A 3W 14.5s 0.01Ohm Radial 17.4 X 3 X 24.9mm T/R Automotive
    VIEW PRODUCT
    In Stock: 1000
    Immediately
    1
    $0.4555
    3,000
    $0.4141
    6,000
    $0.2484
    9,000
    $0.2478
    12,000
    $0.2472
    MF-R600
    Data Sheet
    MF-R600 Bourns
    PTC Resettable Fuse 6A(hold) 12A(trip) 30V 40A 3.5W 16s 0.005Ohm Radial 19.3 X 3 X 31.9mm Bulk Automotive
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    In Stock: 552
    Immediately
    50
    $0.4703
    500
    $0.3627
    1,000
    $0.3311
    3,000
    $0.2994
    6,000
    $0.2703