MF-RX030/72-0

$0.64

Description：PTC RESET FUSE 72V 300MA RADIAL
Series：Multifuse®, MF-RX/72
Mfr：Bourns Inc.
Package：Bulk

SKU:167ff7b3ff4e Category: PTC Resettable Fuses Brand: Bourns Inc.

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Product introduction

MF-RX030/72-0 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Bourns Inc.. Its product description is PTC RESET FUSE 72V 300MA RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for MF-RX030/72-0

Description：PTC RESET FUSE 72V 300MA RADIAL
Series：Multifuse®, MF-RX/72
Mfr：Bourns Inc.
Package：Bulk
Type：Polymeric
Voltage - Max：72V
Current - Hold (Ih) (Max)：300 mA
Current - Trip (It)：600 mA
Current - Max：40 A
Time to Trip：3 s
Resistance - Initial (Ri) (Min)：760 mOhms
Resistance - Post Trip (R1) (Max)：2.1 Ohms
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.291" Dia x 0.122" T (7.40mm x 3.10mm)
Height - Seated (Max)：0.528" (13.40mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

Ptc Resettable Fuses datasheet and documents for MF-RX030/72-0

MF-RX030/72-0

Ptc Resettable Fuses Overview

The Bourns MF-RX030/72-0 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse from the Multifuse MF-RX/72 series. It features a hold current of 300 mA and a trip current of 600 mA, with a maximum voltage rating of 72 VDC. The component has a maximum fault current rating of 40 A and an initial resistance of 1.36 Ohms. It operates within a temperature range of -40°C to +85°C, utilizes a 5.1 mm lead spacing, and dissipates 500 mW of power.

Ptc Resettable Fuses Feature Summary

Provides automatic circuit protection by increasing resistance significantly upon overheating or overcurrent conditions
Restores normal operation automatically after the fault condition is removed and the device cools down
Designed for PCB mounting with radial leads for through-hole integration

Ptc Resettable Fuses Applications

LED driver applications
Current control circuits
Protection against current surges and electrostatic discharge

Ptc Resettable Fuses Procurement Notes

Verify that the ordered part number matches MF-RX030/72-0 exactly, as suffixes indicate specific packaging or tape-and-reel configurations which may differ from bulk supply. Confirm RoHS compliance status and UL certification requirements for the target application before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when a 300 mA hold current and 72 VDC maximum voltage are required for circuit protection. Ensure the available space accommodates the specified dimensions and that the 5.1 mm lead spacing aligns with the PCB footprint design constraints for proper installation.

Ptc Resettable Fuses Part Context

This device belongs to the Bourns Multifuse MF-RX/72 series of PTC resettable fuses. These components are designed to replace traditional fusible links in electronic circuits, offering reusable protection against overcurrent and thermal faults while maintaining low profile and high reliability standards.