Bourns 0.55A Hold current, Radial Resettable Wire Ended Fuses, 240V ac

  • RS Stock No. 775-6050
  • Mfr. Part No. MF-RM055/240-2
  • Manufacturer Bourns
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

Bourns MF-RM Series

Bourns MF-RM series of PTC resettable fuses feature a resettable functionality with overtemperature and overcurrent protection that can save expensive components from having to be replaced after tripping. Additionally the MF-RM series are faster than bimetallic switch designs and generally suffer less from electromagnetic interference. With a reduction in repair and replacement costs, as well as less nuisance tripping, the MF-RM series is ideal for a variety of applications such as food blenders, coffee machines, HVAC. electric fans and blowers and AC adapters.

Radial leaded devices
Cure, flame retardant epoxy polymer insulating material meets UL 94V-0 requirements
Resettable circuit protection

PCB Wire Ended

All are UL, CSA, TUV approved
Protection of electrical and electronic circuits against excessive currents
Rapid switch from low resistance state to very high resistance with electrical overload or short circuit
Quick and automatic reset and return to low resistance state when fault condition corrected and power removed


Automatically resets itself thousands of times
Maintenance free
Small size and no fuseholder required

Main applications:

Security systems
Power supplies and transformers
Power switching devices
Automotive and medical equipment
Instrumentation and control
Computers and peripherals
Audio visual and telecommunications

Attribute Value
Lead Orientation Radial
Trip Current 1.25A
Time to Trip 26s
Hold Current 0.55 A
Voltage Rating 240 V ac
Maximum Current 7 A
Minimum Resistance 0.45Ω
Maximum Resistance 1.45Ω
Power Dissipation 3.4W
Body Height 22.4mm
Body Length 14mm
Body Width 4.1mm
Wire Pitch 5.1mm
Wire Length 7.6mm
Wire Diameter 0.81mm
Minimum Operating Temperature -20°C
Maximum Operating Temperature +85°C
150 In stock for delivery within 5 working day(s)
Price (ex. GST) Each (In a Pack of 10)
$ 1.365
(exc. GST)
$ 1.57
(inc. GST)
Per unit
Per Pack*
10 - 40
50 - 90
100 - 240
250 - 490
500 +
*price indicative
Packaging Options:
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