MF-RX110

Description：PTC RESET FUSE 60V 1.1A RADIAL
Series：Multifuse®, MF-RX
Mfr：Bourns Inc.
Package：Bulk

SKU:607bc97c5b9f Category: PTC Resettable Fuses Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 60V 1.1A RADIAL
Series：Multifuse®, MF-RX
Mfr：Bourns Inc.
Package：Bulk
Type：Polymeric
Voltage - Max：60V
Current - Hold (Ih) (Max)：1.1 A
Current - Trip (It)：2.2 A
Current - Max：40 A
Time to Trip：8.2 s
Resistance - Initial (Ri) (Min)：150 mOhms
Resistance - Post Trip (R1) (Max)：380 mOhms
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.427" L x 0.122" W (10.84mm x 3.10mm)
Height - Seated (Max)：0.662" (16.84mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

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MF-RX110

Overview

The Bourns MF-RX110 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse from the MF-RX/72 series. It features a hold current of 1.1 A and a trip current of 2.2 A, with a maximum voltage rating of 72 VDC. The device has a maximum resistance of 250 mΩ and can withstand a maximum fault current of 40 A. It operates within a temperature range of -40°C to +85°C and utilizes a bulk packaging format.

Feature Summary

Provides automatic circuit protection by increasing resistance in response to overcurrent conditions
Offers resettable functionality to restore normal operation after fault clearance
Designed for PCB mounting with radial termination style

Applications

Overcurrent protection in electronic circuits
Battery pack protection systems
Communication equipment power lines

Procurement Notes

Verify the specific suffix designation when ordering, as variations such as MF-RX110/72-0 exist within the product line. Confirm that the required voltage rating aligns with the 72 VDC specification. Ensure the package type matches the radial leaded configuration. Check RoHS compliance status through official manufacturer documentation before finalizing procurement decisions.

Selection Notes

Select this component based on the 1.1 A hold current requirement and 72 VDC maximum voltage capability. Consider the 250 mΩ maximum resistance for low impedance applications. Evaluate the thermal environment to ensure operation remains within the -40°C to +85°C range. Verify that the 40 A maximum fault current rating exceeds potential surge currents in the target application.

Part Context

This part belongs to the Bourns MF-RX/72 series of resettable fuses. The series provides circuit protection solutions using polymeric PPTC technology. These devices are designed for reliable performance in various electronic applications requiring overcurrent protection.