SMD1206P035TSA

Ptc Resettable Fuses Overview

The Littelfuse SMD1206P035TSA is a PolySwitch polymer PTC resettable fuse designed for surface mount applications. It features a maximum operating voltage of 6V and a hold current (Ih) of 350 mA. The device trips at a current of 750 mA, with a maximum trip time of 100 ms. Initial resistance (Ri) is minimized at 300 mOhms, while post-trip resistance (R1) remains below 1.2 Ohms. It supports a maximum fault current of 40 A and operates within a temperature range of -40°C to 85°C. The component utilizes a 1206 (3216 metric) recessed package.

Ptc Resettable Fuses Feature Summary

• Polymer-based self-resetting overcurrent protection mechanism
• Surface mount construction in a recessed 1206 footprint
• Low initial resistance for minimal power loss
• Certified by cURus and TUV agencies

Ptc Resettable Fuses Applications

• Overcurrent protection for portable electronic devices
• Circuit protection in telecommunications equipment
• Power supply line safeguarding
• Battery pack protection circuits

Ptc Resettable Fuses Procurement Notes

Verify component authenticity through authorized distributors due to the part's obsolete status. Confirm that replacement alternatives meet specific electrical requirements such as hold current and package dimensions. Ensure compliance with project specifications regarding RoHS non-compliance and lead-free soldering processes. Validate supplier documentation against official Littelfuse datasheets to guarantee performance integrity.

Ptc Resettable Fuses Selection Notes

Select this component for low-voltage circuits requiring compact overcurrent protection. Evaluate thermal derating requirements based on ambient operating temperatures up to 85°C. Consider the trade-off between trip speed and holding current stability. Ensure PCB layout accommodates the recessed package geometry for proper solder joint formation and thermal dissipation during fault conditions.

Ptc Resettable Fuses Part Context

This device belongs to the POLY-FUSE SMD1206 series, representing Littelfuse's polymer PTC technology. It provides reliable circuit protection without permanent damage upon fault clearance. The series is engineered for high-volume surface mount manufacturing, offering consistent performance across automotive and industrial environments while maintaining a small physical profile.

Ptc Resettable Fuses Replacement Considerations

MICROSMD035F-2 is a confirmed substitute from Littelfuse Inc.

Ptc Resettable Fuses FAQ

What is the maximum fault current rating?

The maximum fault current rating is 40 A.

Does the component comply with RoHS standards?

No, the SMD1206P035TSA is not RoHS compliant.