1206L350SLTHYR

Ptc Resettable Fuses Overview

The Littelfuse 1206L350SLTHYR is a surface-mount polymer PTC resettable fuse from the LoRho series. It features a hold current of 3.5 A and a trip current of 8.1 A, rated for a maximum voltage of 6 VDC. The device offers an initial resistance of 20 mOhms and a maximum post-trip resistance of 40 mOhms. It supports a maximum fault current of 50 A and dissipates up to 800 mW. The component operates within a temperature range of -40°C to +85°C and is housed in a 1206 (3216 metric) package with dimensions of 3.2 mm length, 1.6 mm width, and 0.8 mm height.

Ptc Resettable Fuses Feature Summary

• Low resistance design utilizing LoRho technology for minimal power loss
• Self-resetting functionality via polymer positive temperature coefficient material
• Surface mount construction optimized for automated PCB assembly

Ptc Resettable Fuses Applications

• Portable electronic device circuit protection
• Consumer electronics power line safeguarding
• Battery pack overcurrent protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix THYR against official Littelfuse documentation to confirm tape and reel specifications. Ensure the procurement channel provides valid RoHS compliance certificates. Cross-reference the manufacturer part number with authorized distributor databases to validate authenticity and traceability before finalizing orders.

Ptc Resettable Fuses Selection Notes

Select this component when low on-state resistance is critical for maintaining system efficiency in low-voltage applications. The 1206 footprint suits space-constrained designs requiring robust overcurrent protection. Evaluate thermal dissipation requirements relative to the 800 mW rating and ambient operating conditions to ensure reliable long-term performance.

Ptc Resettable Fuses Part Context

This part belongs to the POLY-FUSE LoRho series, characterized by ultra-low resistance values compared to standard PPTC devices. The series targets high-efficiency applications where voltage drop must be minimized. It complements other Littelfuse circuit protection solutions for comprehensive system safety.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include the 1206L350SLPR and 1206L350SLWR. Verify compatibility regarding packaging format and exact electrical parameters before substitution.