MF-RX030/72-2

$0.68

Description：PTC RESET FUSE 72V 300MA RADIAL
Series：MF-RX/72
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a122b91b0888 Category: PTC Resettable Fuses Brand: Bourns Inc.

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 72V 300MA RADIAL
Series：MF-RX/72
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：-
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)：-
Resistance - Post Trip (R1) (Max)：-
Operating Temperature：-
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.291" Dia x 0.122" W (7.40mm x 3.10mm)
Height - Seated (Max)：0.528" (13.40mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

Download product information

MF-RX030/72-2

Overview

The Bourns MF-RX030/72-2 is a radial leaded 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 device exhibits a maximum resistance of 1.36 ohms and operates within a temperature range of -40°C to +85°C. Physical dimensions include a diameter of 7.4 mm, height of 13.4 mm, and a lead spacing of 5.1 mm.

Feature Summary

Provides overcurrent protection through automatic circuit interruption upon excessive heat generation.
Offers reusable functionality by resetting to low resistance once the fault condition clears and the component cools.
Eliminates the need for manual replacement or tool-based maintenance after tripping events.

Applications

Overcurrent protection in LED driver circuits
Current limiting and surge protection in electronic control systems
Protection against overheating in consumer electronics assemblies

Procurement Notes

Verify that the specific ordering suffix matches the required packaging configuration. Confirm that the radial lead pitch aligns with the target PCB footprint design. Ensure the maximum voltage rating of 72 VDC is sufficient for the application's peak operating conditions. Validate compliance with relevant safety standards if required for the end product certification process.

Selection Notes

Select this component when a radial leaded form factor is necessary for through-hole mounting. Choose based on the 300 mA hold current requirement for steady-state operation. Consider the 72 VDC rating for low-voltage DC circuit applications. Evaluate the thermal characteristics to ensure proper heat dissipation in the final assembly layout.

Part Context

This part belongs to the Bourns Multifuse MF-RX/72 series of polymer positive temperature coefficient devices. These components are designed for cost-effective circuit protection in space-constrained layouts. The series provides robust performance against short circuits and overloads while maintaining reliability across specified industrial temperature ranges.