SMDH0805B005TF

Ptc Resettable Fuses Overview

The YAGEO SMDH0805B005TF is a surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse designed for circuit protection. It belongs to the SMDH series and features a 0805 (2012 metric) package with dimensions of 2.0 mm length, 1.25 mm width, and 1.25 mm height. The device operates at a maximum voltage of 16 VDC and has a holding current of 50 mA. It trips at 250 mA with a typical response time of 0.08 seconds. The component supports a maximum fault current of 40 A and dissipates up to 0.6 W. It is qualified under AEC-Q200 standards and functions within a temperature range of -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection using polymeric PTC technology.
• Meets automotive reliability requirements through AEC-Q200 qualification.
• Offers high thermal stability suitable for demanding operating environments.

Ptc Resettable Fuses Applications

• Automotive electronic circuits requiring robust overcurrent protection
• Portable consumer electronics battery protection
• Industrial control systems

Ptc Resettable Fuses Procurement Notes

Verify that the specific part number matches the required electrical ratings, particularly the 16VDC voltage rating and 50mA holding current. Confirm AEC-Q200 certification if automotive application compliance is mandatory. Ensure the 0805 footprint aligns with the PCB design constraints. Check datasheet specifications for trip current and response time to validate performance in the target circuit scenario.

Ptc Resettable Fuses Selection Notes

Select this component when a compact surface-mount solution is needed for low-voltage DC circuits. The 0805 package size offers space efficiency compared to larger fuses. Consider the 16VDC rating limit and 50mA holding current to ensure proper circuit operation without nuisance tripping. The AEC-Q200 qualification makes it suitable for applications requiring higher reliability standards than standard commercial components.

Ptc Resettable Fuses Part Context

This component is part of YAGEO's SMDH series of surface-mount PPTC resettable fuses. The series provides various current ratings within the 0805 package format. The SMDH0805B005TF specifically targets applications requiring precise low-current protection with automotive-grade reliability. It complements other passive components in power management and signal line protection designs.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes must match the 0805 package, 16VDC rating, and 50mA holding current. Verify AEC-Q200 qualification if the original design requires automotive certification. Cross-reference trip current and response time characteristics to ensure equivalent protection performance in the specific application context.