MF-RX012/250U-2

$0.81

Description：PTC RESET FUSE 60V 120MA RADIAL
Series：Multifuse®, MF-RX/250
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:e96b71b23fab Category: PTC Resettable Fuses Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 60V 120MA RADIAL
Series：Multifuse®, MF-RX/250
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：60V (250V Int)
Current - Hold (Ih) (Max)：120 mA
Current - Trip (It)：-
Current - Max：3:00 AM
Time to Trip：-
Resistance - Initial (Ri) (Min)：6 Ohms
Resistance - Post Trip (R1) (Max)：16 Ohms
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：0.201" (5.10mm)

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MF-RX012/250U-2

Overview

The Bourns MF-RX012/250U-2 is a resettable polymeric positive temperature coefficient (PPTC) device designed for overcurrent protection in electronic circuits. This specific model features a hold current of 12A and a trip current of 25A, with a maximum voltage rating of 250V DC. It operates within a standard ambient temperature range and utilizes a radial leaded package configuration suitable for through-hole mounting applications.

Feature Summary

Provides automatic circuit recovery after fault conditions are cleared
Acts as a self-resetting fuse alternative to traditional one-time fuses
Offers reliable overcurrent protection against short circuits and excessive loads

Applications

Power supply input protection
Battery pack safeguarding
Industrial control circuit overcurrent defense

Procurement Notes

Verify the exact part number suffix against manufacturer documentation to ensure correct voltage and current ratings. Confirm that the radial lead style matches your PCB layout requirements. Check datasheet specifications for thermal derating curves relevant to your operating environment to guarantee proper performance under load conditions.

Selection Notes

Choose this component based on its specific 12A hold current and 250V rating. Ensure the physical size fits the designated footprint on the printed circuit board. Consider the time-current characteristics required for your application to match the tripping speed needed for effective circuit protection without nuisance trips during normal operation surges.

Part Context

This device belongs to Bourns' MF-RX series of resettable fuses. These components utilize polymer technology to provide robust protection in various electronic assemblies. The series is widely recognized for replacing conventional fuses in applications requiring repeated overcurrent events without permanent damage to the protective element.