PTR030V0110-BK

Ptc Resettable Fuses Overview

The Eaton PTR030V0110-BK is a PolyTron PTC resettable fuse designed for overcurrent protection in electronic circuits. It features a maximum voltage rating of 30 V and a hold current (Ih) of 1.1 A, with a trip current (It) of 2.2 A. The device has a maximum rated current of 40 A and an initial resistance (Ri) minimum of 50 mOhms, while the post-trip resistance (R1) maximum is 170 mOhms. It operates within a temperature range of -40°C to +85°C and utilizes radial kinked leads with a 5 mm spacing.

Ptc Resettable Fuses Feature Summary

• Polymer-based self-resetting mechanism eliminates the need for manual replacement after fault conditions.
• Radial leaded construction facilitates through-hole PCB mounting with standard spacing.
• Certified by cURus and TUV agencies for compliance with international safety standards.

Ptc Resettable Fuses Applications

• Overcurrent protection for portable computing devices
• Circuit safeguarding in consumer electronics
• Protection interfaces in telecommunications equipment

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix BK indicates bulk packaging when ordering, as TR denotes tape and reel. Confirm that the 30V rating aligns with the circuit's maximum operating voltage. Ensure the 1.1A hold current meets the application's continuous load requirements without nuisance tripping during normal operation.

Ptc Resettable Fuses Selection Notes

Select this component based on the 30V maximum voltage constraint and the 1.1A steady-state current requirement. Compare the 170 mOhms max post-trip resistance against allowable power dissipation limits in the protected circuit. Consider the 5mm lead spacing for PCB layout compatibility and verify thermal derating curves if ambient temperatures exceed standard ratings.

Ptc Resettable Fuses Part Context

This part belongs to the PolyTron PTR030V series, which provides resettable protection for low-voltage applications. The series offers various current ratings within the 30V envelope, allowing designers to scale protection levels while maintaining consistent form factor and mounting characteristics across different circuit designs.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other parts from the same PTR030V series with adjusted current ratings, such as PTR030V0250 or PTR030V0300, provided the electrical parameters match the specific circuit needs. Cross-brand replacements require careful verification of voltage, current, and physical dimensions.