BKP1005HM121-T8

Chip Ferrite Bead Overview

The BKP1005HM121-T8 is a single-line ferrite bead chip from the BK series, manufactured by Taiyo Yuden. It features a 0402 (1005 metric) surface-mount package with an impedance of 120 Ohms at 100 MHz and a tolerance of 25%. The component supports a maximum DC current of 1 A and has a maximum DC resistance of 140 mOhms. It operates within a temperature range of -55°C to 125°C.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high-impedance characteristics at target frequencies.
• Designed for low DC resistance to minimize power loss in high-current applications.
• Constructed for reliable operation across extended industrial and automotive temperature ranges.

Chip Ferrite Bead Applications

• Power supply circuits
• Battery chargers
• Voltage regulation modules

Chip Ferrite Bead Procurement Notes

Verify part authenticity and datasheet alignment before integration. Confirm RoHS3 compliance and MSL rating. Check for obsolescence notices or PCN updates. Ensure packaging matches design requirements. Validate thermal performance under load conditions.

Chip Ferrite Bead Selection Notes

Select based on required impedance at specific frequencies and current handling capacity. Compare DCR values against power budget constraints. Verify package compatibility with PCB footprint. Consider operating temperature limits for environmental exposure.

Chip Ferrite Bead Part Context

This component belongs to Taiyo Yuden's BK series of ferrite beads, designed for EMI suppression in compact electronic designs. The 0402 package allows for dense board layouts while maintaining effective noise filtering capabilities in signal and power lines.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include BLA31AG121SN4D from Murata Electronics, which offers similar electrical characteristics in a different package size. Verify impedance curves and current ratings when cross-referencing alternatives.

Chip Ferrite Bead FAQ

What is the impedance value of the BKP1005HM121-T8?

The impedance is 120 Ohms measured at 100 MHz.

What is the maximum DC current rating?

The component supports a maximum DC current of 1 A.