SMD1812B200TFT

Ptc Resettable Fuses Overview

The YAGEO SMD1812B200TFT is a surface-mount polymer PTC resettable fuse designed for circuit protection. It features a holding current of 200 mA and a trip current of 400 mA, operating at a maximum voltage of 30 VDC. The component has a typical resistance of 5 Ohms and a power dissipation rating of 800 mW. It operates within a temperature range of -40°C to +85°C and is housed in a standard 1812 (4532 metric) package with a height of 1.25 mm.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection using polymeric positive temperature coefficient technology.
• Designed for surface mount assembly on printed circuit boards.
• Offers reliable circuit interruption when trip current thresholds are exceeded.

Ptc Resettable Fuses Applications

• Portable electronic device circuit protection
• Consumer electronics power line safeguarding
• Communication equipment input protection

Ptc Resettable Fuses Procurement Notes

Verify the exact part number against official manufacturer documentation to ensure correct suffix identification. Confirm that the specific variant matches the required electrical ratings for your design. Cross-reference datasheet specifications for thermal derating requirements. Ensure compliance with RoHS directives if applicable to your manufacturing standards.

Ptc Resettable Fuses Selection Notes

Select this component based on the 200 mA holding current requirement and 30 VDC maximum voltage constraint. Evaluate the 800 mW power dissipation capability against expected operating conditions. Consider the 1812 footprint compatibility with existing PCB layouts. Assess the -40°C to +85°C operating range against environmental constraints.

Ptc Resettable Fuses Part Context

This component belongs to the SMD series of polymer PTC resettable fuses from YAGEO. These devices utilize conductive polymer materials to provide reversible overcurrent protection. The series offers various current ratings within the 1812 package format, catering to diverse low-voltage circuit protection needs in modern electronics.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers include SMD1812B020TF. Verify pinout compatibility and electrical parameter equivalence before substitution. Ensure the alternative meets all mechanical and thermal requirements of the original design.