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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-R030-0-99
    Data Sheet
    MF-R030-0-99 Bourns
    PTC Resettable Fuse 0.3A(hold) 0.6A(trip) 60V 40A 0.5W 3s 0.76Ohm Radial 7.4 X 3.1mm Bulk Automotive
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    In Stock: 2022
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    60
    $0.8385
    100
    $0.8311
    500
    $0.5809
    1,000
    $0.5313
    1,750
    $0.5148
    MF-R030-2
    Data Sheet
    MF-R030-2 Bourns
    PTC Resettable Fuse 0.3A(hold) 0.6A(trip) 60V 40A 0.5W 3s 0.76Ohm Radial 7.4 X 3.1mm T/R Automotive
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    In Stock: 8692
    Ships Immediately
    1
    $0.2914
    3,000
    $0.2649
    6,000
    $0.2440
    9,000
    $0.2325
    12,000
    $0.2221
    MF-R040
    Data Sheet
    MF-R040 Bourns
    PTC Resettable Fuse 0.4A(hold) 0.8A(trip) 60V 40A 0.55W 3.8s 0.52Ohm Radial 7.4 X 3.1mm Bag Automotive
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    In Stock: 5612
    Ships Immediately
    80
    $0.4145
    100
    $0.3879
    250
    $0.3744
    500
    $0.2300
    1,000
    $0.2261
    MF-R040-0-99
    Data Sheet
    MF-R040-0-99 Bourns
    PTC Resettable Fuse 0.4A(hold) 0.8A(trip) 60V 40A 0.55W 3.8s 0.52Ohm Radial 7.4 X 3.1mm Bag Automotive
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    In Stock: 1362
    Ships Immediately
    40
    $4.303
    50
    $3.736
    100
    $2.006
    500
    $0.619
    1,000
    $0.596
    MF-R040-2
    Data Sheet
    MF-R040-2 Bourns
    PTC Resettable Fuse 0.4A(hold) 0.8A(trip) 60V 40A 0.55W 3.8s 0.52Ohm Radial 7.4 X 3.1mm T/R Automotive
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    In Stock: 5848
    Ships Immediately
    3,000
    $0.4169
    6,000
    $0.3898
    12,000
    $0.3644
    24,000 +
    $0.3556
    MF-R040-2-99
    Data Sheet
    MF-R040-2-99 Bourns
    PTC Resettable Fuse 0.4A(hold) 0.8A(trip) 60V 40A 0.55W 3.8s 0.52Ohm Radial 7.4 X 3.1mm T/R Automotive
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    In Stock: 3000
    Ships Immediately
    200
    $0.612
    1,000
    $0.589
    4,000
    $0.561
    10,000
    $0.537
    30,000 +
    $0.514
    MF-R050
    Data Sheet
    MF-R050 Bourns
    PTC Resettable Fuse 0.5A(hold) 1A(trip) 60V 40A 0.75W 4s 0.41Ohm Radial 7.9 X 3.1mm Bulk Automotive
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    In Stock: 9960
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    80
    $0.4680
    100
    $0.4123
    250
    $0.3077
    500
    $0.2620
    1,000
    $0.2565
    MF-R050-0-99
    Data Sheet
    MF-R050-0-99 Bourns
    PTC Resettable Fuse 0.5A(hold) 1A(trip) 60V 40A 0.75W 4s 0.41Ohm Radial 7.9 X 3.1mm Bag Automotive
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    In Stock: 93
    Ships Immediately
    50
    $0.8965
    100
    $0.8519
    200
    $0.8444
    250
    $0.8355
    500
    $0.5290
    MF-R050-2
    Data Sheet
    MF-R050-2 Bourns
    PTC Resettable Fuse 0.5A(hold) 1A(trip) 60V 40A 0.75W 4s 0.41Ohm Radial 7.9 X 3.1mm T/R Automotive
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    In Stock: 3000
    Ships Immediately
    3,000
    $0.3825
    6,000
    $0.3571
    12,000
    $0.3553
    24,000 +
    $0.3535
    MF-R055/90-0
    Data Sheet
    MF-R055/90-0 Bourns
    PTC Resettable Fuse 0.55A(hold) 1.1A(trip) 90V 10A 2W 60s 0.45Ohm Radial 10.9 X 3.6mm Bulk
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    In Stock: 3
    Ships Immediately
    1
    $0.3048
    50
    $0.2987
    100
    $0.2924
    250
    $0.2863
    500
    $0.2802