BKP1005TM121-T

Chip Ferrite Bead Overview

The BKP1005TM121-T is a multi-layer ferrite bead chip manufactured by Taiyo Yuden, designed for high-current applications in the 0402 (1005 metric) surface-mount package. It provides an impedance of 120 ohms at 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 1.3 A and features a low maximum DC resistance of 0.1 ohms. It operates within a temperature range of -55°C to +85°C.

Chip Ferrite Bead Feature Summary

• Multi-layer construction for compact high-current filtering
• Low DC resistance to minimize power loss
• High impedance performance at 100 MHz

Chip Ferrite Bead Applications

• Power supply line noise suppression
• High-current signal path filtering
• EMI suppression in compact mobile devices

Chip Ferrite Bead Procurement Notes

Verify the specific suffix TM against official Taiyo Yuden documentation to confirm electrical characteristics such as rated current and impedance. Ensure the 0402 package dimensions match the target PCB footprint. Confirm RoHS compliance status if required by the end product specifications.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require a 0402 footprint but higher current handling than standard beads offers. The 1.3A rating distinguishes it from lower-current variants. Verify that the 120-ohm impedance profile aligns with the target noise frequency spectrum for effective attenuation.

Chip Ferrite Bead Part Context

This part belongs to the BKP series of ferrite beads, which are engineered for high-current applications. The 1005 designation indicates the 0402 imperial package size. It serves as a passive EMI suppression component, distinct from capacitors or inductors, specifically optimized for dissipating high-frequency noise in power lines.

Chip Ferrite Bead Replacement Considerations

Cross-reference with other Taiyo Yuden BKP1005 variants having similar 120-ohm impedance and 0402 packaging. Verify that substitute parts meet the same 1.3A current rating and 0.1-ohm DCR limits to maintain circuit performance.