MF-RX375/72-0

$0.79

Description：PTC RESET FUSE 72V 3.75A RADIAL
Series：Multifuse®, MF-RX/72
Mfr：Bourns Inc.
Package：Bulk

SKU:39999660713b 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 3.75A RADIAL
Series：Multifuse®, MF-RX/72
Mfr：Bourns Inc.
Package：Bulk
Type：Polymeric
Voltage - Max：72V
Current - Hold (Ih) (Max)：3.75 A
Current - Trip (It)：7.5 A
Current - Max：40 A
Time to Trip：24 s
Resistance - Initial (Ri) (Min)：30 mOhms
Resistance - Post Trip (R1) (Max)：80 mOhms
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.926" L x 0.122" W (23.51mm x 3.10mm)
Height - Seated (Max)：1.161" (29.50mm)
Thickness (Max)：-
Lead Spacing：0.402" (10.20mm)

Download product information

MF-RX375/72-0

Overview

The Bourns MF-RX375/72-0 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse from the Multifuse MF-RX/72 series. It features a 3.75 A hold current and a 7.5 A trip current, designed for operation at a maximum voltage of 72 VDC. The component has a maximum resistance of 50 mΩ and a rated interrupting current of 40 A. It operates within a temperature range of -40°C to +85°C with a 10.2 mm lead spacing.

Feature Summary

Provides automatic circuit protection by increasing resistance in response to overcurrent or overheating conditions
Restores normal conductivity after the fault condition is removed and the device cools down
Offers dual UL and RoHS certification for compliance with safety and environmental standards

Applications

LED driver circuits
Current control systems
Overheat protection modules
Surge and electrostatic discharge mitigation

Procurement Notes

Verify the specific part number suffix against official Bourns documentation to confirm exact electrical ratings and package dimensions. Ensure compatibility with PCB mounting requirements and thermal management needs. Confirm that the radial lead configuration matches the target board layout. Validate that the 72V DC rating aligns with the system's maximum operating voltage.

Selection Notes

Select this component when a high-current resettable fuse is required for 72V DC applications. The 3.75A hold current suits moderate power loads needing robust overload protection. Consider the 10.2mm lead spacing for through-hole assembly constraints. Evaluate the 50mΩ resistance impact on circuit efficiency during normal operation.

Part Context

This device belongs to the Bourns Multifuse MF-RX/72 series of PTC resettable fuses. The series is engineered for PCB mount applications requiring reliable overcurrent protection. The radial leaded format facilitates standard through-hole manufacturing processes. The product line supports various current ratings within the same voltage class.

Replacement Considerations

Consult official Bourns substitution guides for verified equivalents. Generic PTC fuses may not match the precise trip characteristics or certification status. Verify that any substitute maintains the 72V DC rating and radial lead pitch.