Littelfuse 0.25A Hold current, Radial Leaded PCB Mount Resettable Fuse, 240V dc

  • RS Stock No. 495-0735
  • Mfr. Part No. LVR025K
  • Manufacturer Littelfuse
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

PolySwitch™ Mains Rated LVR/LVB Series

TE PolySwitch LVR/LVB series line-voltage product line of polymeric positive temperature coefficient (PPTC) devices includes components that are rated for line voltages of 120VAC and 240VAC, for up to 2A of operating current at 20°C. They help protect against damage caused by both overcurrent surges and overtemperature faults. They also offer low resistance and are compatibly sized with fuse solutions. Typical application include: medical equipment, motors, fans and blowers, security and fire alarm systems, test and measurement equipment, transformers, USB hubs, ports and peripherals.

Current ratings from 50mA to 2A
Line voltage rating of 120VAC and 240VAC
Fast time-to-trip
Low resistance
RoHS compliant

PCB Wire Ended

Resettable fuses with radial leads that offer the following:

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 560mA
Time to Trip 18.5s
Hold Current 0.25 A
Voltage Rating 240 V dc
Maximum Current 3.5 A
Minimum Resistance 1.3Ω
Maximum Resistance 3.8Ω
Power Dissipation 1.5W
Body Height 18.8mm
Body Length 9.6mm
Body Width 3.8mm
Wire Pitch 4.3 → 5.8mm
Wire Length 7.6mm
Wire Diameter 0.65mm
100 : Next working day (AU stock)
285 : 5 working days (Global stock)
Price (ex. GST) Each (In a Pack of 5)
$ 1.028
(exc. GST)
$ 1.131
(inc. GST)
Per unit
Per Pack*
5 - 120
125 - 245
250 - 495
500 - 1245
1250 +
*price indicative
Packaging Options:
Related Products
Solid State, Thin Film, SMD 1206, Super-Quick-Acting FF, ...
Solid State, Thin Film, SMD 1206, Super-Quick-Acting FF, 125 VAC, 125 VDC, 150 °C Highest Breaking Capacity Rating for a 1206 on the market: 300A@125VDCUnique Selling Proposition No tin whiskers, no tin dendrites No leaded coating Hermetically sealed and robust ...
Tyco Raychem brand 1206 SFF fuses help provide ...
Tyco Raychem brand 1206 SFF fuses help provide overcurrent protection on systems using dc power sources Their monolithic, multilayer design offers the highest hold current in the smallest footprint, reducing diffusion-related aging, improving product reliability and resilience, and enhancing high ...
Surface mount fuses offer considerable space (and time) ...
Surface mount fuses offer considerable space (and time) saving features for low voltage applications The FF types are ideal for protection of high value silicon IC's e.g. alarm systems, audio/visual equipment, computer boards, portable telephones, power supplies, medical apparatus etc. ...
The Littelfuse 461 series Tele Link® fuses are ...
The Littelfuse 461 series Tele Link® fuses are Halogen free, surge tolerant and offer over-current protection for a wide range of telecom applications without requiring a series resistor Suitable applications include line cards, modems, fax machines, phones, answering machines, caller ...