MF-SMHT136-2-6

Overview

The MF-SMHT136-2-6 is a high-temperature polymer positive temperature coefficient (PPTC) resettable fuse from Bourns' Multifuse series. Designed for surface-mount applications, this component provides overcurrent and surge protection in electronic circuits. It operates within a temperature range of -40°C to +125°C and complies with AEC-Q200 standards for automotive passive components. The device features low thermal decay and maintains holding current performance at elevated temperatures, offering robust fault protection in space-constrained layouts.

Feature Summary

• Complies with AEC-Q200 Grade C stress testing requirements for automotive applications
• Operates reliably within a -40°C to +125°C temperature range
• Features low thermal decay coefficients for stable performance
• Provides higher holding current ratings at elevated temperatures

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
• Communication and safety systems requiring robust circuit protection
• Body electronics and climate control system protection

Procurement Notes

Verify the specific suffix configuration against official Bourns documentation to ensure correct voltage and package specifications. Confirm that the selected variant meets the required AEC-Q200 certification levels for your target application. Cross-reference the part number with the latest Multifuse product selection worksheets to validate compatibility with your design parameters before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require resettable protection under high-temperature conditions. The MF-SMHT series is suitable for applications where traditional fuses are impractical due to space constraints or the need for automatic recovery after fault clearance. Ensure the holding current rating aligns with the normal operating current of the protected circuit while accounting for ambient temperature derating factors specified in the technical datasheet.

Part Context

This part belongs to the MF-SMHT series, an expansion of Bourns' Multifuse line designed specifically for high-temperature environments. The series offers surface-mount technology options with holding currents ranging from 1.36 A to 3.0 A. These devices are engineered to provide cost-effective and compact protection solutions for demanding industrial, automotive, and consumer electronic applications where reliability under thermal stress is critical.

Replacement Considerations

Consult the Multifuse PPTC Resettable Fuses Cross Reference Guide for verified substitute part numbers. Direct replacements must match the original voltage rating, holding current, and package dimensions to ensure circuit compatibility. Verify that any alternative component also meets AEC-Q200 requirements if used in automotive contexts.