1206L350SLWR

Ptc Resettable Fuses Overview

The Littelfuse 1206L350SLWR is a surface-mount PolySwitch resettable PTC device from the Low Rho SL series. It provides overcurrent protection with a holding current of 3.5 A and a trip current of 7 A. The component supports a maximum voltage of 6 VDC and handles a maximum fault current of 50 A. Its initial resistance is 18 mOhms, with a power dissipation rating of 800 mW. Designed for compact PCBs, it operates within a temperature range of -40°C to +85°C and features a 1206 (3225 metric) package footprint.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by increasing resistance during thermal events
• Features low initial resistance to minimize power loss in sensitive circuits
• Offers automatic circuit restoration after cooling without manual replacement
• Designed for surface mount assembly compatible with standard reflow processes

Ptc Resettable Fuses Applications

• Protection of portable electronic devices and battery packs
• Overcurrent safeguarding for telecommunications equipment interfaces
• Circuit protection for automotive infotainment and sensor modules
• Guarding consumer electronics against short circuit faults

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'SL' confirms the Low Rho variant characteristics when sourcing. Ensure the ordering code matches the required reel or cut tape format for automated assembly lines. Confirm RoHS compliance status through official manufacturer documentation prior to final procurement decisions.

Ptc Resettable Fuses Selection Notes

Select this component for applications requiring rapid response to overcurrent conditions with minimal voltage drop. The 6 VDC rating limits suitability to low-voltage logic and peripheral circuits. Evaluate the 3.5 A holding current against normal operating loads to prevent nuisance tripping during peak usage scenarios.

Ptc Resettable Fuses Part Context

This part belongs to the PolySwitch Low Rho SL family, engineered for high-current density protection in space-constrained environments. The series utilizes advanced polymer technology to achieve lower resistance compared to standard PPTC devices, enhancing efficiency in power delivery networks.

Ptc Resettable Fuses Replacement Considerations

Compatible substitutes include other 1206 package resettable fuses with matching 3.5 A holding current and 6 VDC ratings. Verify that alternative parts maintain similar trip current thresholds and physical dimensions for direct board replacement.