SMDL1812B350TF

Ptc Resettable Fuses Overview

The YAGEO SMDL1812B350TF is a surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse designed for circuit protection. It features a holding current of 3.5 A and a trip current of 7 A, operating at a maximum voltage of 6 VDC. The component has a typical resistance of 1.5 mOhms and can withstand a maximum fault current of 100 A. It is housed in an 0603 (1608 metric) package with dimensions of 1.6 mm length, 0.8 mm width, and 0.6 mm height. The device operates within a temperature range of -40°C to +85°C and dissipates 1 W of power.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection using polymeric PTC technology
• Designed for compact surface-mount applications with low profile packaging
• Capable of handling high fault currents up to 100 A for robust circuit safeguarding

Ptc Resettable Fuses Applications

• Portable electronic devices requiring space-saving protection
• Consumer electronics circuits needing overcurrent safeguarding
• Automotive infotainment and sensor modules
• Industrial control boards with limited board space

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix and tape/reel configuration against the manufacturer's latest datasheet to ensure compatibility with automated assembly equipment. Confirm that the 6V rating aligns with the target circuit's operational voltage to prevent nuisance tripping or inadequate protection. Check RoHS compliance status if required by project specifications.

Ptc Resettable Fuses Selection Notes

Select this component when a low-voltage, high-current protection solution is needed in a minimal footprint. Ensure the circuit's normal operating current remains below the 3.5 A holding current threshold. Consider the 1.5 mOhms resistance impact on signal integrity or power loss in sensitive low-voltage lines before finalizing the design.

Ptc Resettable Fuses Part Context

This part belongs to YAGEO's SMDL series of resettable fuses, which are engineered for high-reliability applications in modern electronics. The series offers various current ratings within the 0603 package size, allowing designers to scale protection levels without altering the PCB layout constraints significantly.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes must match the 0603 package, 6V max voltage, and ~3.5A holding current. Verify thermal characteristics and trip time curves against original requirements when considering alternative manufacturers.