MF-RX025/72-2

$0.68

Description：PTC RESET FUSE 72V 250MA RADIAL
Series：MF-RX/72
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:58618f30d0a0 Category: PTC Resettable Fuses Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 72V 250MA RADIAL
Series：MF-RX/72
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：-
Voltage - Max：72V
Current - Hold (Ih) (Max)：250 mA
Current - Trip (It)：500 mA
Current - Max：40 A
Time to Trip：2.5 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)：0.500" (12.70mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

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MF-RX025/72-2

Overview

The Bourns MF-RX025/72-2 is a radial leaded Multifuse PPTC resettable fuse designed for overcurrent protection. It features a hold current of 250 mA and a trip current of 500 mA, operating at a maximum voltage of 72 VDC. The component has a typical resistance of 1.95 Ohms and dissipates 450 mW. It operates within a temperature range of -40°C to +85°C. Physical dimensions include a diameter of 7.4 mm, height of 12.7 mm, and a lead spacing of 5.1 mm.

Feature Summary

Provides automatic circuit recovery after fault clearance without manual replacement
Offers robust protection against overcurrent conditions in high-voltage environments
Eliminates nuisance tripping caused by ambient temperature variations

Applications

Automotive circuit protection
High-reliability electronic equipment surge protection
Industrial transportation systems
Communication infrastructure safety systems
Consumer electronics fault protection

Procurement Notes

Verify the specific suffix designation when ordering. The provided model ends in '-2', while official documentation references the '-AP' variant for this electrical specification. Confirm that the requested suffix aligns with the required packaging or functional requirements before procurement to ensure compatibility with design specifications.

Selection Notes

Select this component for applications requiring compact PCB mounting with radial leads. Ensure the circuit's normal operating current remains below the 250 mA hold rating. Verify that the system voltage does not exceed the 72 VDC limit. Consider the 1.95 Ohm resistance impact on signal integrity or power loss in sensitive designs.

Part Context

This part belongs to the MF-RX/72 series of polymer positive temperature coefficient (PPTC) devices. These components are engineered for cost-effective protection in space-constrained layouts. The series provides flexibility for designers managing limited board real estate compared to traditional axial or through-hole alternatives.