BK250-400-SI

Ptc Resettable Fuses Overview

The YAGEO BK250-400-SI is a polymeric PTC resettable fuse designed for through-hole PCB mounting. It features a radial disc package with a 5.1 mm lead spacing. Key electrical parameters include a maximum voltage of 250 V, a hold current of 400 mA, and a trip current of 800 mA. The device has a maximum rated current of 10 A and an initial resistance of 3 Ohms. It operates within a temperature range of -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides automatic self-resetting overcurrent protection using polymer positive temperature coefficient technology.

Ptc Resettable Fuses Applications

• Overcurrent protection in electronic circuits requiring resettable fuses

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'SI' against official YAGEO documentation to confirm exact physical dimensions and certification status, as suffixes often denote specific packaging or regulatory compliance variations. Ensure the component meets the required thermal and electrical ratings for the target application before finalizing procurement.

Ptc Resettable Fuses Selection Notes

Select this component when a 400 mA hold current and 250 V maximum voltage are required for through-hole applications. Consider the 3 Ohm initial resistance and 10 A maximum current rating to ensure compatibility with the circuit's power dissipation and fault current requirements.

Ptc Resettable Fuses Part Context

This part belongs to the BK250 series of resettable fuses from YAGEO. The series offers various hold currents and package styles, including square and disc formats, to provide flexible overcurrent protection solutions for diverse electronic designs.

Ptc Resettable Fuses FAQ

What is the maximum current rating for the BK250-400-SI?

The maximum rated current for the BK250-400-SI is 10 A.

Does the BK250-400-SI support surface mount installation?

No, the BK250-400-SI is designed for through-hole (PCB Mount) installation with radial leads.