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RESETTABLE FUSES?
Reset Your Current
Thinking
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- Personal Computers
- Laptop Computers
- Cellular Phones
- Personal Digital Assistants
- Transformers
- Electric Motors
- Amplifiers and P.A. Systems
- Security and Fire Alarms
- Medical Electronics
- Point of Sale Equipment
- Industrial Controls
- Automotive Electronics and Harness Protection
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Resettable Overcurrent
Protection
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Polymer Positive
Temperature Co-Efficient (PTC) Devices
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In an over current or fault condition, the
MultiFuse device's unique
conductive polymer increases its resistance, protecting your
circuit's components from dangerous high current. MultiFuse products are resettable, just
remove the fault and power, and they're ready to provide
protection again.
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MF-R Series Resettable
Overcurrent Protectors
Reset Your Current
Thinking
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Hold and Trip
Current Limits
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V max.
Volts
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I max.
Amps.
|
Initial
Resistance
|
1 Hour (R1)
Post-Trip
Resistance
|
Max. Time
To Trip
at 5 x Ih
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Tripped
Power
Dissipation
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Model
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Farnell
Order
Code
|
5+
Price
£
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Amperes
at 23C
|
Ohms
at 23C
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Ohms
at 23C
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Seconds
at 23C
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Watts
at 23C
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|
Hold
|
Trip
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Min.
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Max.
|
Max.
|
|
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0.10
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0.20
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30*
|
40
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2.50
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4.50
|
7.50
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4.0
|
0.38
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MF-R010
|
772-252
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0.62
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0.20
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0.40
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30*
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40
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1.74
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2.84
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4.40
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2.2
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0.40
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MF-R020
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772-264
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0.65
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0.25
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0.40
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30*
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40
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1.19
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1.95
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3.00
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2.5
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0.45
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MF-R025
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772-276
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0.66
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0.30
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0.60
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30*
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40
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0.76
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1.36
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2.10
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3.0
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0.50
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MF-R030
|
772-288
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0.66
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0.40
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0.80
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30*
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40
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0.52
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0.86
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1.29
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3.8
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0.55
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MF-R040
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772-290
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0.66
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0.50
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1.00
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30*
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40
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0.41
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0.77
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1.17
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4.0
|
0.75
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MF-R050
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772-306
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0.67
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0.65
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1.30
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30*
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40
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0.27
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0.48
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0.72
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5.3
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0.90
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MF-R065
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772-318
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0.70
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0.75
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1.50
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30*
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40
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0.18
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0.40
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0.60
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6.3
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0.90
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MF-R075
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772-320
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0.70
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0.90
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1.80
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30*
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40
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0.14
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0.31
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0.47
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7.2
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1.00
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MF-R090
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772-331
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0.70
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1.10
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2.20
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30
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40
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0.10
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0.18
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0.27
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6.6
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0.70
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MF-R110
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772-343
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0.70
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1.35
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2.70
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30
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40
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0.065
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0.115
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0.17
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7.3
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0.80
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MF-R135
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772-355
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0.70
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1.60
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3.20
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30
|
40
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0.055
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0.105
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0.15
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8.0
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0.90
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MF-R160
|
772-367
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1.00
|
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1.85
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3.70
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30
|
40
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0.04
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0.07
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0.11
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8.7
|
1.00
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MF-R185
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772-379
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1.01
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2.50
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5.00
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30
|
40
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0.025
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0.048
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0.07
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10.3
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1.20
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MF-R250
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772-380
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1.05
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3.00
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6.00
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30
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40
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0.02
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0.05
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0.08
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10.8
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2.00
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MF-R300
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772-392
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1.09
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4.00
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8.00
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30
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40
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0.01
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0.03
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0.05
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12.7
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2.50
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MF-R400
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772-409
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1.13
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5.00
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10.00
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30
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40
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0.01
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0.03
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0.05
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14.5
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3.00
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MF-R500
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772-410
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1.17
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6.00
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12.00
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30
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40
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0.005
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0.02
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0.04
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16.0
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3.50
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MF-R600
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772-422
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1.20
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7.00
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14.00
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30
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40
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0.005
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0.02
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0.03
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17.5
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3.80
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MF-R700
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772-434
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1.24
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8.00
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16.00
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30
|
40
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0.005
|
0.02
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0.03
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18.8
|
4.00
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MF-R800
|
772-446
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1.28
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* Can be used up to 60v - Consult Farnell
Technical
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