MF-RHT1000-AP

Overview

The Bourns MF-RHT1000-AP is a high-temperature polymer positive temperature coefficient (PPTC) resettable fuse from the Multifuse series. Designed for robust overcurrent protection in demanding environments, this component utilizes advanced polymer technology to provide reliable circuit safeguarding against short circuits and excessive current conditions. It offers a cost-effective solution for applications requiring durable fault protection without manual replacement.

Feature Summary

• Provides automatic resettable overcurrent protection using polymer PTC technology
• Engineered for high-temperature operation in harsh electrical environments
• Eliminates trip risks associated with traditional thermal fuses due to temperature variations
• Offers compact surface-mount packaging for space-constrained board layouts

Applications

• Automotive circuit protection systems
• High-reliability electronic equipment safeguarding
• Industrial transportation control units
• Communication infrastructure components
• Consumer electronics power management

Procurement Notes

Verify the specific hold current and trip characteristics against your design requirements using the official datasheet. Confirm RoHS compliance status and material declarations via the manufacturer's documentation. Ensure the selected variant matches your voltage and current ratings precisely. Cross-reference the ordering suffix to confirm package type and tape/reel specifications if applicable.

Selection Notes

Select this component when designing for high-temperature resilience and automatic recovery after fault events. Consider the trade-off between holding current capacity and response time relative to your load profile. Evaluate the physical footprint constraints to ensure the SMD form factor fits your PCB layout. Validate compatibility with peak surge currents expected during normal operation.

Part Context

This part belongs to the Bourns Multifuse PPTC family, which specializes in polymer-based resettable fuses. The series is recognized for providing superior circuit protection compared to traditional fusible links. These devices are widely utilized across automotive, industrial, and consumer sectors where reliability and maintenance-free operation are critical priorities.

Replacement Considerations

Consult the official Bourns obsolescence list for confirmed substitute part numbers. Verify that any alternative device meets identical voltage, current, and temperature ratings. Ensure mechanical compatibility and certification approvals match the original specification before implementation.