TRF250-120T-B-0.5

$0.81

Description：PTC RESET FUSE 60V 120MA RADIAL
Series：PolySwitch®, TRF250
Mfr：Littelfuse Inc.
Package：Bag

SKU:3e798b3746cb Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

TRF250-120T-B-0.5 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 60V 120MA RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for TRF250-120T-B-0.5

Description：PTC RESET FUSE 60V 120MA RADIAL
Series：PolySwitch®, TRF250
Mfr：Littelfuse Inc.
Package：Bag
Type：Polymeric
Voltage - Max：60V (250V Int)
Current - Hold (Ih) (Max)：120 mA
Current - Trip (It)：240 mA
Current - Max：3:00 AM
Time to Trip：1.2 s
Resistance - Initial (Ri) (Min)：7 Ohms
Resistance - Post Trip (R1) (Max)：16 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 TRF250-120T-B-0.5

TRF250-120T-B-0.5

Ptc Resettable Fuses Overview

The Littelfuse TRF250-120T-B-0.5 is a PolySwitch resettable PTC fuse from the TRF250 series, designed for PCB mounting with radial termination. It features a maximum voltage rating of 60 VDC and a trip current of 240 mA. The device maintains a holding current of 120 mA and supports a maximum rated current of 3 A. Its resistance is specified at 16 Ohms, with an operating temperature range spanning from -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

Provides automatic circuit protection through polymer PTC technology that resets after fault clearance
Offers dual voltage ratings for both DC and AC applications within standard limits
Features radial leads suitable for through-hole PCB mounting configurations

Ptc Resettable Fuses Applications

Overcurrent protection in portable electronic devices
Circuit safeguarding for telecommunications equipment interfaces
Protection for battery-powered consumer electronics assemblies

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix configuration against official Littelfuse documentation to ensure alignment with required thermal and electrical characteristics. Confirm package type and lead spacing match design constraints. Cross-reference RoHS compliance status and agency approvals such as UL or CSA for target market requirements before finalizing procurement decisions.

Ptc Resettable Fuses Selection Notes

Select this component when designing circuits requiring resettable overcurrent protection with low initial resistance. Ensure the holding current meets continuous operational needs while the trip current provides adequate fault sensitivity. Validate thermal management capabilities within the specified operating temperature range for reliable long-term performance in end-use environments.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse PolySwitch TRF250 series of resettable fuses. These components utilize conductive polymer technology to provide reusable circuit protection. The series offers various current ratings and package options to accommodate diverse electronic design requirements across industrial and consumer markets.