MF-SMHT136-2

Overview

The Bourns MF-SMHT136-2 is a high-temperature polymer positive temperature coefficient (PPTC) resettable fuse from the Multifuse series. Designed for surface mount applications, this component provides overcurrent and surge protection in electronic circuits. It features a hold current of 1.36 A and a maximum voltage rating of 16 V. The device operates within a temperature range of -40°C to +125°C and complies with AEC-Q200 standards for automotive stress testing.

Feature Summary

• Complies with AEC-Q200 C version stress test requirements for automotive passive components
• Operates reliably within a wide temperature range of -40°C to +125°C
• Features low thermal derating coefficients for stable performance under varying conditions
• Provides higher hold current ratings at elevated temperatures compared to standard devices

Applications

• Protection of various automotive electrical circuits
• Surge and overcurrent protection for electronics operating at high temperatures
• Resettable fault protection for general-purpose electronic equipment
• Protection in communication and safety systems
• Body electronics and climate control system circuitry

Procurement Notes

Verify that the specific part number matches the required hold current and voltage specifications for the target application. Confirm compliance with AEC-Q200 automotive standards if used in vehicle systems. Ensure the surface mount package type aligns with PCB layout constraints. Check datasheet details for trip time characteristics and maximum current ratings before finalizing procurement decisions.

Selection Notes

Select this component when high-temperature operation up to 125°C is required alongside compact surface mount packaging. Consider the 1.36 A hold current and 16 V rating to ensure adequate circuit protection without nuisance tripping. Evaluate the need for AEC-Q200 certification if the application involves automotive environments. Compare thermal derating curves against ambient temperature profiles to verify reliable performance.

Part Context

This part belongs to the Bourns Multifuse MF-SMHT series, which expands the company's high-temperature PPTC resettable fuse lineup. These components are engineered for robust fault protection in demanding environments where standard fuses may fail or require frequent replacement. The series offers a cost-effective alternative to traditional fusible links while providing automatic circuit restoration after fault clearance.

Replacement Considerations

Consult the official Multifuse cross-reference guide for verified substitute part numbers. Ensure any replacement maintains equivalent voltage ratings, hold currents, and AEC-Q200 compliance levels. Verify that the physical footprint and thermal characteristics match the original design requirements.