MF-RX050/72-0-17

$0.26

Description：PTC RESETTABLE 0.5A 72V RADIAL L
Series：Multifuse®, MF-RX/72
Mfr：Bourns Inc.
Package：Bulk

SKU:330bcc040571 Category: PTC Resettable Fuses Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESETTABLE 0.5A 72V RADIAL L
Series：Multifuse®, MF-RX/72
Mfr：Bourns Inc.
Package：Bulk
Type：Polymeric
Voltage - Max：72V
Current - Hold (Ih) (Max)：500 mA
Current - Trip (It)：1:00 AM
Current - Max：40 A
Time to Trip：4 s
Resistance - Initial (Ri) (Min)：410 mOhms
Resistance - Post Trip (R1) (Max)：1.17 Ohms
Operating Temperature：-40°C ~ 85°C
Grade：Automotive
Qualification：AEC-Q200
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.311" Dia x 0.122" T (7.90mm x 3.10mm)
Height - Seated (Max)：0.539" (13.70mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

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MF-RX050/72-0-17

Overview

The Bourns MF-RX050/72-0-17 is a polymeric self-resetting fuse (PPTC) from the MF-RX/72 series, designed for through-hole PCB mounting. It features a maximum voltage rating of 72 VDC and a hold current (Ih) of 500 mA. The trip current (It) is specified at 1 A. Initial resistance (Ri min) is 410 mOhms, with a post-trip resistance (R1 max) of 1.17 Ohms. The device operates within a temperature range of -40°C to +85°C and carries automotive grade qualification.

Feature Summary

Polymeric positive temperature coefficient construction for automatic reset capability after fault clearance.
Automotive grade qualification ensuring reliability in demanding vehicle electrical environments.
Radial leaded package design facilitating standard printed circuit board integration.

Applications

Automotive electronic circuit protection
Overcurrent protection for low-voltage DC systems
Battery pack safeguarding

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm that the part number suffix matches the exact variant required for automotive applications. Ensure storage conditions comply with manufacturer guidelines to maintain performance integrity prior to assembly.

Selection Notes

Select this component when a 72VDC maximum voltage rating and 500mA hold current are required for overcurrent protection. Consider the specific resistance values and trip characteristics to ensure compatibility with the target circuit's operational parameters and safety requirements.

Part Context

This part belongs to the Bourns MF-RX/72 series of PTC resettable fuses. These devices are engineered for high-reliability applications, particularly within the automotive sector. The series offers various current ratings while maintaining consistent voltage and thermal performance standards across different models.