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-R185
    Data Sheet
    MF-R185 Bourns
    PTC Resettable Fuse 1.85A(hold) 3.7A(trip) 30V 40A 1W 8.7s 0.04Ohm Radial 12 X 3mm Bulk Automotive
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    In Stock: 7962
    Can Ship immediately 
    100
    $0.3108
    500
    $0.2651
    1,000
    $0.2392
    4,000
    $0.1990
    8,000
    $0.1980
    MF-R185-0-99
    Data Sheet
    MF-R185-0-99 Bourns
    PTC Resettable Fuse 1.85A(hold) 3.7A(trip) 30V 40A 1W 8.7s 0.04Ohm Radial 12 X 3mm Bag Automotive
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    In Stock: 2
    Can Ship immediately 
    1
    $0.5250
    50
    $0.4773
    100
    $0.4535
    500
    $0.4308
    1,000
    $0.4092
    MF-R185-2
    Data Sheet
    MF-R185-2 Bourns
    PTC Resettable Fuse 1.85A(hold) 3.7A(trip) 30V 40A 1W 8.7s 0.04Ohm Radial 12 X 3mm T/R Automotive
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    In Stock: 1500
    Can Ship immediately 
    421
    $0.4400
    1,500
    $0.3300
    2,250
    $0.3080
    3,000 +
    $0.3018
    MF-R250
    Data Sheet
    MF-R250 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 30V 40A 1.2W 10.3s 0.025Ohm Radial 12 X 3 X 18.3mm Bulk Automotive
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    In Stock: 4980
    Can Ship immediately 
    100
    $0.3325
    500
    $0.2831
    1,000
    $0.2588
    3,000
    $0.2245
    6,000 +
    $0.2234
    MF-R250-0-10
    Data Sheet
    MF-R250-0-10 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 30V 40A 1.2W 10.3s 0.025Ohm Radial 12 X 3 X 18.3mm Bulk Automotive
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    In Stock: 17203
    Can Ship immediately 
    100
    $0.3149
    500
    $0.2818
    1,000
    $0.2810
    3,000
    $0.2713
    6,000 +
    $0.2623
    MF-R250-0-10-99
    Data Sheet
    MF-R250-0-10-99 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 30V 40A 1.2W 10.3s 0.025Ohm Radial 12 X 3 X 18.3mm Bag Automotive
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    In Stock: 1209
    Can Ship immediately 
    179
    $0.4519
    893
    $0.4264
    3,572
    $0.4131
    8,929
    $0.3876
    26,786 +
    $0.3774
    MF-R250-0-99
    Data Sheet
    MF-R250-0-99 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 30V 40A 1.2W 10.3s 0.025Ohm Radial 12 X 3 X 18.3mm Bag Automotive
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    Discontinued
    MF-R250-2
    Data Sheet
    MF-R250-2 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 30V 40A 1.2W 10.3s 0.025Ohm Radial 12 X 3 X 18.3mm T/R Automotive
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    In Stock: 4500
    Can Ship immediately 
    3,000
    $0.4480
    6,000
    $0.4379
    9,000
    $0.4290
    12,000
    $0.4255
    15,000
    $0.4187
    MF-R250-2-99
    Data Sheet
    MF-R250-2-99 Bourns
    PTC Resettable Fuse 2.5A(hold) 5A(trip) 30V 40A 1.2W 10.3s 0.025Ohm Radial 12 X 3 X 18.3mm T/R Automotive
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    In Stock: 3000
    Can Ship immediately 
    1
    $0.191
    50
    $0.187
    100
    $0.184
    250
    $0.180
    500
    $0.176
    MF-R300
    Data Sheet
    MF-R300 Bourns
    PTC Resettable Fuse 3A(hold) 6A(trip) 30V 40A 2W 10.8s 0.02Ohm Radial 12 X 3 X 18.3mm Bulk Automotive
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    In Stock: 2296
    Can Ship immediately 
    1
    $0.3113
    100
    $0.2830
    500
    $0.2800
    1,000
    $0.2670
    3,000
    $0.2190