MF-RHS800-0

Overview

The Bourns MF-RHS800-0 is a polymer PTC resettable fuse from the Multifuse MF-RHS series, designed for radial through-hole PCB mounting. It features an 8 A hold current and a maximum voltage rating of 16 V. The device exhibits a minimum initial resistance of 0.006 Ohms and a maximum trip resistance of 0.0145 Ohms. It operates within a temperature range of -40°C to +125°C and supports a maximum fault current of 100 A with a typical trip time of 8 seconds. Certified under cUL and cURus standards, it is supplied in bulk packaging.

Feature Summary

• Provides overcurrent protection using polymer positive temperature coefficient technology
• Capable of automatic circuit restoration after fault conditions clear
• Engineered for high-temperature environments up to 125°C
• Radial leaded construction facilitates standard through-hole PCB integration

Applications

• Automotive electronic circuit protection
• Industrial equipment power supply safeguarding
• Consumer electronics overcurrent defense
• Telecommunications infrastructure component protection

Procurement Notes

Verify that the specific ordering suffix matches the required radial leaded configuration and bulk packaging format. Confirm compliance with RoHS3 directives and REACH regulations prior to procurement. Ensure the selected variant aligns with the intended thermal management requirements given the 125°C operational limit. Cross-reference certification marks such as cUL and cURus against target market regulatory standards to guarantee acceptance.

Selection Notes

Select this component when applications demand high holding currents near 8 Amperes within low-voltage 16 V systems. The radial package suits designs prioritizing mechanical stability over surface area constraints. Evaluate the 0.006 Ohm minimum resistance to ensure minimal voltage drop impact on sensitive loads. Consider the 100 A maximum fault current capability for robust surge protection scenarios requiring rapid response times.

Part Context

This part belongs to the Multifuse MF-RHS series, which expands Bourns' portfolio of high-temperature PPTC devices. The series targets demanding environments where standard components may fail due to thermal stress. It complements other radial and surface mount options by offering specialized high-current handling capabilities while maintaining compact physical dimensions suitable for dense board layouts.

Replacement Considerations

Consult official Bourns substitution guides for direct equivalents. Verify that alternative parts match the 8 A hold current and 16 V rating precisely. Ensure substitute components maintain compatible radial lead spacing and thermal performance characteristics.

FAQ

What is the maximum fault current rating for the MF-RHS800-0?

The device supports a maximum fault current of 100 Amperes.

Does the MF-RHS800-0 require manual resetting after tripping?

No, it is a self-resetting device that automatically returns to a low-resistance state once the fault condition is removed and the component cools down.

What certifications does this component hold?

The MF-RHS800-0 holds cUL and cURus safety certifications.