- RS Stock No.:
- 164-8237
- Mfr. Part No.:
- TRF250-120U
- Manufacturer:
- Littelfuse
Discontinued product
- RS Stock No.:
- 164-8237
- Mfr. Part No.:
- TRF250-120U
- Manufacturer:
- Littelfuse
Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- CN
Product Details
PolySwitch™ PTC Devices TRF Series
TE PolySwitch TRF Series of telecommunications and networking devices provide protection against damage caused by power cross and power induction surges as defined in ITU, Telcordia GR1089 and UL60950. Typically used in modems, fax machines, alarm systems, xDSL modems and splitters, T1/E1 equipment, analog and digital line cards, VoIP (Voice over Internet Protocol) equipment, LAN, WAN equipment and access network hardware applications.
Resettable overcurrent protection
Surface-mount, radial-leaded and chip form factors
Fast time-to-trip
Low parasitic capacitance/flat impedance with frequency
RoHS compliant
Surface-mount, radial-leaded and chip form factors
Fast time-to-trip
Low parasitic capacitance/flat impedance with frequency
RoHS compliant
For products that are Customized and under Non-cancellable & Non-returnable, Sales & Conditions apply.
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
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
Features:
Automatically resets itself thousands of times
Maintenance free
Small size and no fuseholder required
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
Power supplies and transformers
Power switching devices
Automotive and medical equipment
Instrumentation and control
Computers and peripherals
Audio visual and telecommunications
Specifications
Attribute | Value |
---|---|
Trip Current | 0.24A |
Voltage Rating | 60V dc |
Time to Trip | 1s |
Hold Current | 0.12A |
Maximum Current | 3 A |
Length | 6mm |
Height | 10mm |
Width | 3.8mm |
Terminal Material | Tin Plated Copper |
Minimum Resistance | 6Ω |
Maximum Resistance | 10Ω |
Power Dissipation | 0.8W |
Minimum Operating Temperature | -40°C |
Maximum Operating Temperature | +85°C |
Lead Orientation | Radial |
Series | TRF250 |
Dimensions | 6 x 10 x 3.8mm |
Operating Temperature Range | -40 → +85 °C |