MF-R040 - Bourns Inc.

Manufacturer Part Number

MF-R040

Manufacturer

Bourns

Introduction

The Bourns MF-R040 is a Multifuse® Polymeric Positive Temperature Coefficient (PPTC) Resettable Fuse designed for overcurrent and overtemperature protection in a wide range of electronic applications. It offers reliable, automatic circuit protection against faults and overloads, resetting itself after the fault condition is removed.

Product Features and Performance

Voltage rating up to 60V

Hold current of 400mA

Trip current of 800mA

Maximum current of 40A

Time to trip of 3.8s

Initial resistance of 520mOhms

Post-trip resistance of up to 1.29 Ohms

Operating temperature range of -40°C to 85°C

Product Advantages

Automatic circuit reset after fault condition is cleared

Small, compact design

Reliable overcurrent and overtemperature protection

Stable performance across a wide temperature range

Key Reasons to Choose This Product

Robust circuit protection to prevent damage to sensitive electronic components

Automatic reset functionality for hassle-free operation

Space-saving design for tight PCB layouts

Trusted Bourns brand quality and reliability

Quality and Safety Features

UL recognized, with cURus and TUV approvals

Designed and manufactured to high quality standards

Compatibility

Suitable for a wide range of electronic devices and applications

Application Areas

Consumer electronics

Industrial equipment

Telecommunications devices

Automotive electronics

Power supplies

Product Lifecycle

The Bourns MF-R040 is an active, in-production product. There are equivalent and alternative models available from Bourns within the Multifuse® MF-R series. For more information or assistance in selecting the best product for your application, please contact our website's sales team.