MF-R250-0-010

Description：PTC RESET FUSE 30V 2.5A RADIAL
Series：Multifuse®, MF-R
Mfr：Bourns Inc.
Package：Bulk

SKU:0081e03d2176 Category: PTC Resettable Fuses Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 30V 2.5A RADIAL
Series：Multifuse®, MF-R
Mfr：Bourns Inc.
Package：Bulk
Type：Polymeric
Voltage - Max：30V
Current - Hold (Ih) (Max)：2.5 A
Current - Trip (It)：5:00 AM
Current - Max：40 A
Time to Trip：10.3 s
Resistance - Initial (Ri) (Min)：25 mOhms
Resistance - Post Trip (R1) (Max)：70 mOhms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.472" L x 0.118" W (12.00mm x 3.00mm)
Height - Seated (Max)：0.720" (18.30mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

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MF-R250-0-010

Overview

The Bourns MF-R250-0-010 is a radial leaded PolySwitch resettable fuse from the Multifuse MF-R series. It features a 2.5 A hold current and a 5 A trip current, designed for circuits operating at up to 30 VDC. The device exhibits a maximum resistance of 48 mΩ and can withstand fault currents up to 40 A. It operates within a temperature range of -40°C to +85°C and has a power dissipation rating of 1.2 W. Physical dimensions include a length of 12 mm, width of 3 mm, and height of 18.3 mm, with a lead spacing of 5.1 mm.

Feature Summary

Provides automatic circuit protection by increasing resistance in response to overcurrent conditions
Automatically resets to low resistance state after cooling down following fault removal
Designed for through-hole PCB mounting applications

Applications

Overcurrent protection for portable electronics
Protection for telecommunications equipment input lines
Circuit safeguarding in automotive accessories

Procurement Notes

Verify the specific suffix against official Bourns documentation to confirm exact packaging and material specifications. Ensure the selected variant matches the required thermal and electrical ratings for the target application environment. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm availability and compliance status.

Selection Notes

Select this component when a 2.5 A continuous current capacity is required for 30 VDC systems. Consider the 48 mΩ initial resistance and 1.2 W power dissipation limits during thermal design. Evaluate the 5.1 mm lead spacing for compatibility with existing PCB footprints and assembly processes.

Part Context

This part belongs to the Bourns Multifuse MF-R series of PPTC resettable fuses. These devices utilize polymer positive temperature coefficient technology to provide reusable overcurrent protection. The series offers various hold current options and voltage ratings for diverse electronic circuit protection needs.