TRF250-183US

Ptc Resettable Fuses Overview

The Littelfuse TRF250-183US is a PolySwitch resettable PPTC fuse designed for overcurrent protection in electronic circuits. It features a hold current of 183 mA and a trip current of 685 mA, with a maximum voltage rating of 100 VDC. The device has a maximum resistance of 3.4 Ohms and a rated interrupting current of 10 A. It operates within a temperature range of -40°C to +85°C and utilizes radial through-hole mounting with a 5 mm lead spacing.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit recovery after fault clearance without manual replacement
• Offers dual-element protection against both overcurrent and thermal overload conditions
• Ensures reliable performance across wide industrial operating temperature ranges

Ptc Resettable Fuses Applications

• Portable electronics and battery packs
• Communication equipment and data lines
• Automotive electronics and sensors
• Industrial control systems and power supplies

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'US' against official Littelfuse documentation to confirm exact packaging or tape-and-reel specifications. Ensure the procurement source provides valid UL, CSA, and TUV certification marks. Confirm RoHS compliance status matches current regulatory requirements before finalizing orders.

Ptc Resettable Fuses Selection Notes

Select this component when a 183 mA hold current is required for low-power circuit protection. Verify that the 100 VDC maximum voltage aligns with the system's operational limits. Consider the 3.4 Ohm maximum resistance impact on signal integrity. Ensure the radial package fits the available PCB footprint and lead spacing constraints.

Ptc Resettable Fuses Part Context

This part belongs to the TRF250 series of PolySwitch resettable fuses from Littelfuse. The series is engineered for high-reliability applications requiring repeated trip cycles. It complements other variants in the family by offering specific current ratings tailored for sensitive electronic components and data line protection scenarios.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include TRF250-183U and RF0770-000, which share identical electrical characteristics. Verify that any alternative maintains the same radial package dimensions and lead spacing. Ensure the replacement supports the required 10 A interrupting capacity and 100 VDC rating.