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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235 Products

    MF-RX250/72-0
    Data Sheet
    MF-RX250/72-0 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 72V 40A 2.5W 15.6s 0.05Ohm Radial 17.84 X 3.1 X 23.84mm Bag Automotive
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    In Stock: 6567
    Immediately
    100
    $0.3923
    500
    $0.3443
    1,000
    $0.3136
    3,000
    $0.2576
    6,000
    $0.2566
    MF-RX250/72-2
    Data Sheet
    MF-RX250/72-2 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 72V 40A 2.5W 15.6s 0.05Ohm Radial 17.84 X 3.1 X 23.84mm T/R Automotive
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    4 Weeks
    1
    $0.3032
    3,000
    $0.2756
    6,000
    $0.2747
    9,000
    $0.2740
    12,000
    $0.2532
    MF-RX250-2
    Data Sheet
    MF-RX250-2 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 60V 40A 2.5W 15.6s 0.05Ohm Radial 21.3 X 3.1mm T/R Automotive
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    Discontinued
    MF-RX300
    Data Sheet
    MF-RX300 Bourns
    PTC Resettable Fuse 3A(hold) 6A(trip) 60V 40A 2.8W 19.8s 0.04Ohm Radial 24.9 X 3.1mm Bulk Automotive
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    In Stock: 167
    Immediately
    30
    $0.7632
    100
    $0.7555
    500
    $0.5280
    1,000
    $0.4830
    3,000
    $0.4583
    MF-RX300/72-0
    Data Sheet
    MF-RX300/72-0 Bourns
    PTC Resettable Fuse 3A(hold) 6A(trip) 72V 40A 2.8W 19.8s 0.04Ohm Radial 20.67 X 3.1 X 26.67mm Bag Automotive
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    In Stock: 5934
    Immediately
    50
    $0.5172
    500
    $0.2587
    1,000
    $0.2562
    3,000
    $0.2537
    6,000
    $0.2531
    MF-RX300/72-2
    Data Sheet
    MF-RX300/72-2 Bourns
    PTC Resettable Fuse 3A(hold) 6A(trip) 72V 40A 2.8W 19.8s 0.04Ohm Radial 20.67 X 3.1 X 26.67mm T/R Automotive
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    In Stock: 6000
    Immediately
    1,000
    $0.3185
    3,000
    $0.3141
    6,000
    $0.2509
    9,000
    $0.2503
    12,000
    $0.2478
    MF-RX300-2
    Data Sheet
    MF-RX300-2 Bourns
    PTC Resettable Fuse 3A(hold) 6A(trip) 60V 40A 2.8W 19.8s 0.04Ohm Radial 24.9 X 3.1mm T/R Automotive
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    Discontinued
    MF-RX375
    Data Sheet
    MF-RX375 Bourns
    PTC Resettable Fuse 3.75A(hold) 7.5A(trip) 60V 40A 3.2W 24s 0.03Ohm Radial 28.4 X 3.1mm Bulk Automotive
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    In Stock: 89
    Immediately
    40
    $1.110
    50
    $1.099
    100
    $0.871
    1,000
    $0.703
    3,000
    $0.674
    MF-RX375/72-0
    Data Sheet
    MF-RX375/72-0 Bourns
    PTC Resettable Fuse 3.75A(hold) 7.5A(trip) 72V 40A 3.2W 24s 0.03Ohm Radial 23.51 X 3.1 X 29.51mm Bag Automotive
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    In Stock: 1981
    Immediately
    50
    $0.5851
    500
    $0.4458
    1,000
    $0.4073
    3,000
    $0.3346
    6,000
    $0.3334
    MF-RX375/72-2
    Data Sheet
    MF-RX375/72-2 Bourns
    The MF-RX375/72-2 is a radial leaded, 72V PTC resettable fuse with a hold current of 3.75 A for overcurrent prote ...
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    In Stock: 4051
    Immediately
    500
    $0.4637
    1,000
    $0.3901
    3,000
    $0.3493
    6,000
    $0.3484
    9,000
    $0.3476