TRF250-145US

$0.82

Description：PTC RESET FUSE 60V 145MA RADIAL
Series：PolySwitch®, TRF250
Mfr：Littelfuse Inc.
Package：Bag

SKU:16806672880f Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

TRF250-145US is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 60V 145MA RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for TRF250-145US

Description：PTC RESET FUSE 60V 145MA RADIAL
Series：PolySwitch®, TRF250
Mfr：Littelfuse Inc.
Package：Bag
Type：Polymeric
Voltage - Max：60V (250V Int)
Current - Hold (Ih) (Max)：145 mA
Current - Trip (It)：290 mA
Current - Max：3:00 AM
Time to Trip：4 s
Resistance - Initial (Ri) (Min)：3.5 Ohms
Resistance - Post Trip (R1) (Max)：14 Ohms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.236" L x 0.150" W (6.00mm x 3.80mm)
Height - Seated (Max)：0.394" (10.00mm)
Thickness (Max)：-
Lead Spacing：0.197" (5.00mm)

Ptc Resettable Fuses datasheet and documents for TRF250-145US

TRF250-145US

Ptc Resettable Fuses Overview

The Littelfuse TRF250-145US is a PolySwitch resettable PTC fuse designed for circuit protection. It features a hold current of 145 mA and a trip current of 290 mA, with a maximum voltage rating of 60 VDC (250 VAC internal). The device has a maximum fault current rating of 3 A and a typical resistance of 14 Ohms. It operates within a temperature range of -40°C to +85°C and utilizes radial leads with a 5 mm spacing.

Ptc Resettable Fuses Feature Summary

Provides automatic resettable overcurrent protection for electronic circuits
Utilizes polymeric positive temperature coefficient technology
Supports through-hole PCB mounting with radial termination

Ptc Resettable Fuses Applications

Consumer electronics circuit protection
Portable device power line safeguarding
General purpose overcurrent protection in low-voltage systems

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix requirements against the official Littelfuse datasheet to ensure correct voltage ratings and packaging options. Confirm that the selected variant meets the required hold and trip current specifications for the target application. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Ptc Resettable Fuses Selection Notes

Select this component based on the 145 mA hold current and 60 VDC maximum voltage rating. Ensure the 3 A maximum current capability aligns with the circuit's fault conditions. Verify that the radial lead spacing matches the PCB footprint design. Consider the operating temperature range limits when evaluating environmental constraints.

Ptc Resettable Fuses Part Context

This component belongs to the Littelfuse TRF250 series of PolySwitch resettable fuses. These devices are engineered to replace traditional fusible links by offering reusable protection. The series provides various hold current options while maintaining consistent physical dimensions and mounting characteristics for standardized integration.