MF-RHT050-2

$0.79

Description：PTC RESET FUSE 30V 500MA RADIAL
Series：Multifuse®, MF-RHT
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:3328d155d612 Category: PTC Resettable Fuses Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 30V 500MA RADIAL
Series：Multifuse®, MF-RHT
Mfr：Bourns Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：30V
Current - Hold (Ih) (Max)：500 mA
Current - Trip (It)：920 mA
Current - Max：40 A
Time to Trip：2.5 s
Resistance - Initial (Ri) (Min)：480 mOhms
Resistance - Post Trip (R1) (Max)：1.1 Ohms
Operating Temperature：-40°C ~ 125°C
Grade：Automotive
Qualification：AEC-Q200
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.291" Dia x 0.118" T (7.40mm x 3.00mm)
Height - Seated (Max)：0.500" (12.70mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

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MF-RHT050-2

Overview

The MF-RHT050-2 is a radial lead PTC resettable fuse from the Bourns MF-RHT series, rated for 30VDC and a holding current of 500mA. It features an initial resistance minimum of 480 mOhms and a maximum post-trip resistance of 1.1 Ohms. The device trips in 2.5 seconds under specified conditions and operates within a temperature range of -40°C to 125°C. It carries AEC-Q200 qualification for automotive applications.

Feature Summary

Provides overcurrent protection through automatic reset functionality upon cooling after a fault event.
Designed with high-temperature capabilities suitable for demanding thermal environments.
Qualified to AEC-Q200 standards for reliability in automotive electronic circuits.

Applications

Automotive electronics circuit protection
Power supply input protection
Signal line surge suppression

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm that the received parts match the exact MF-RHT050-2 designation, including voltage and current ratings. Ensure storage conditions comply with moisture sensitivity levels if applicable. Request batch-specific test reports or certificates of conformity to validate performance consistency before integration into production lines.

Selection Notes

Select this component when a 30VDC rating and 500mA holding current are required for radial mounting. Consider the 480 mOhms initial resistance for low power loss during normal operation. Evaluate the 2.5-second trip time against system response requirements. Ensure the operating environment stays within the -40°C to 125°C range to maintain reliable switching characteristics.

Part Context

This part belongs to the MF-RHT series of high-temperature PTC resettable fuses manufactured by Bourns Inc. The series is designed to replace traditional fusible links in applications requiring automatic recovery. The radial package facilitates through-hole PCB mounting, offering a compact solution for protecting sensitive downstream components from overcurrent events.

Replacement Considerations

Direct substitutes must match the 30VDC rating, 500mA holding current, and radial lead configuration. Verify that alternative components meet AEC-Q200 qualification if used in automotive contexts. Check that the replacement's initial and post-trip resistance values fall within acceptable limits for the specific circuit design to ensure proper protection coordination.