MF-RG1100-AP

Overview

The Bourns MF-RG1100-AP is a radial leaded PTC resettable fuse from the MF-RG series, designed for overcurrent protection in low-voltage circuits. It features a maximum voltage rating of 16 V and a hold current of 11 A. The device trips at 18.7 A with a typical trip time of 7 seconds. It has a maximum interrupt rating of 100 A and an initial resistance of 6.2 mΩ. Operating within a temperature range of -40°C to +85°C, it utilizes a 5.1 mm lead spacing and measures 17.5 x 3 x 26 mm.

Feature Summary

• Provides automatic circuit recovery after fault clearance without manual replacement
• Offers high surge current capability for robust transient protection
• Features compact radial leaded package suitable for PCB mounting

Applications

• Overcurrent protection for portable electronic devices
• Circuit safeguarding in consumer electronics power supplies
• Protection for battery packs and charging circuits

Procurement Notes

Verify the specific suffix 'AP' against official Bourns documentation to confirm if it denotes a specific tape-and-reel packaging variant or environmental compliance status distinct from the standard bulk version. Ensure the component meets RoHS requirements for your target market. Confirm availability through authorized distributors as stock levels may vary.

Selection Notes

Select this component when a high-current (11 A) resettable fuse is required for 16 V systems. The 18.7 A trip point provides a safety margin above normal operating currents. Consider the 6.2 mΩ resistance for minimal voltage drop impact. Ensure the application environment stays within the -40°C to +85°C operational range for reliable performance.

Part Context

This part belongs to the Bourns MF-RG series of high-current PPTC resettable fuses. The series is characterized by its ability to handle large fault currents up to 100 A while maintaining a low profile. It serves as a reusable alternative to traditional one-time fuses in applications requiring frequent or unpredictable overcurrent events.

Replacement Considerations

Direct substitutes must match the 11 A hold current, 16 V rating, and radial leaded form factor. Verify that any replacement component offers equal or higher trip current (18.7 A) and interrupt rating (100 A). Ensure the replacement maintains the same thermal characteristics and physical dimensions for board compatibility.