TRF250-183-2

$0.74

Description：PTC RESET FUSE 100V 183MA RADIAL
Series：PolySwitch®, TRF250
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:ed9e8d9dafc5 Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

TRF250-183-2 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 100V 183MA RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for TRF250-183-2

Description：PTC RESET FUSE 100V 183MA RADIAL
Series：PolySwitch®, TRF250
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：100V (250V Int)
Current - Hold (Ih) (Max)：183 mA
Current - Trip (It)：685 mA
Current - Max：10:00 AM
Time to Trip：1.8 s
Resistance - Initial (Ri) (Min)：800 mOhms
Resistance - Post Trip (R1) (Max)：3.4 Ohms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.295" Dia x 0.161" T (7.50mm x 4.10mm)
Height - Seated (Max)：0.413" (10.50mm)
Thickness (Max)：-
Lead Spacing：0.197" (5.00mm)

Ptc Resettable Fuses datasheet and documents for TRF250-183-2

TRF250-183-2

Ptc Resettable Fuses Overview

The Littelfuse TRF250-183-2 is a PolySwitch polymer PTC resettable fuse designed for circuit protection. It features a holding current of 183 mA and a trip current of 685 mA. The device supports a maximum voltage of 100 VDC with an internal rating of 250 V. Maximum fault current capacity is 10 A. Initial resistance is typically 800 mOhms, rising to a maximum of 3.4 Ohms after tripping. Operating temperature range spans from -40°C to +85°C. The component utilizes a radial through-hole package with a 5.00 mm lead spacing.

Ptc Resettable Fuses Feature Summary

Provides automatic resettable overcurrent protection using polymer technology
Features fast time-to-trip response for rapid circuit interruption
Offers low parasitic capacitance and flat impedance characteristics

Ptc Resettable Fuses Applications

Building and home automation systems
Telecommunications equipment line protection
Consumer electronics circuit safeguarding

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix designation against manufacturer documentation to confirm exact electrical ratings and packaging configuration. Ensure that ordering requirements align with the intended application voltage and current parameters. Confirm compliance with relevant safety certifications such as UL, CSA, or TUV before integration into final products.

Ptc Resettable Fuses Selection Notes

Select this component when a resettable solution is required for low-current DC circuits. The 183 mA holding current suits sensitive signal lines. Verify that the 100 VDC rating meets system voltage constraints. Consider the thermal environment, as performance varies within the specified operating temperature range. Ensure PCB footprint accommodates the radial disc form factor.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse PolySwitch TRF250 series, which focuses on telecom and line-rated applications. The series emphasizes matched resistance devices and low parasitic effects. It serves as a reusable alternative to traditional one-time fuses in space-constrained designs requiring reliable overcurrent management.