BK30-200-SI

Ptc Resettable Fuses Overview

The YAGEO BK30-200-SI is a polymeric PTC resettable fuse from the BK30 series, designed for radial PCB mounting. It features a maximum voltage rating of 30 V and a hold current (Ih) of 2 A. The trip current (It) is specified at 4 A, with a maximum fault current rating of 40 A. The device exhibits a typical resistance of 40 mOhms and operates within a temperature range of -40°C to +85°C. The component utilizes a radial lead configuration with a lead spacing of 5.1 mm.

Ptc Resettable Fuses Feature Summary

• Provides automatic overcurrent protection through self-resetting polymeric technology
• Designed for radial through-hole mounting on printed circuit boards
• Operates reliably across a wide industrial temperature range

Ptc Resettable Fuses Applications

• Overcurrent protection in consumer electronics circuits
• Protection for portable battery-powered devices
• Industrial control system input/output interfaces

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'SI' against the manufacturer's official datasheet to confirm package style and tape/reel specifications. Ensure the hold current and voltage ratings match the target circuit requirements before procurement. Cross-reference the RoHS compliance status with the latest product documentation to meet environmental regulations.

Ptc Resettable Fuses Selection Notes

Select this component when a 30 V maximum working voltage and 2 A continuous hold current are required. The 40 A maximum fault current capability allows it to handle significant surge events without permanent damage. Consider the 40 mOhms resistance impact on low-voltage sensitive circuits during normal operation.

Ptc Resettable Fuses Part Context

This part belongs to the YAGEO BK30 series of square-shaped polymeric PTC resettable fuses. The series offers various hold currents ranging from 0.9 A to 9.0 A within the same 30 V platform. The BK30-200-SI represents the 2 A variant within this family, sharing common thermal and electrical characteristics with other models in the series.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other YAGEO BK30 series parts with similar current ratings, such as BK30-150 or BK30-250, if slight current adjustments are acceptable. Generic replacements must match the 30 V rating, radial package, and 5.1 mm lead spacing to ensure board compatibility.