BK32164L121-T

Chip Ferrite Bead Overview

The BK32164L121-T is a multilayer chip bead array inductor from the Taiyo Yuden BK series. It features four independent lines within a single 1206 (3216 metric) surface-mount package. The component provides an impedance of 120 Ohms at 100 MHz and supports a maximum DC current of 200 mA. Its maximum DC resistance is 200 milliohms, with operating temperatures ranging from -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Integrates four independent ferrite bead channels into a compact 1206 footprint for space-constrained designs.
• Provides high common-mode noise suppression through dedicated signal line filtering capabilities.
• Constructed using multilayer ceramic technology for robust mechanical stability and thermal performance.

Chip Ferrite Bead Applications

• High-speed digital signal line filtering in portable electronic devices
• Noise suppression on data buses such as USB or HDMI interfaces
• Power supply decoupling in mobile communication modules

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'L' against the required datasheet revision, as Taiyo Yuden utilizes various suffixes to denote packaging or material variations. Confirm availability status, as this part number may be obsolete or subject to product change notices. Ensure the selected substitute matches the 1206 array configuration and electrical specifications exactly.

Chip Ferrite Bead Selection Notes

Select this component when four-channel noise filtering is required in a minimal board area. The 1206 package size balances footprint efficiency with current handling capabilities. Verify that the 200 mA rating meets the peak current demands of the target circuit without causing excessive saturation or temperature rise during operation.

Chip Ferrite Bead Part Context

This component belongs to the BK Array series of multilayer chip bead inductors. These arrays are designed to replace multiple discrete ferrite beads, reducing assembly complexity and improving signal integrity by minimizing trace lengths between the filter and the protected circuitry.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include the Murata BLA31AG121SN4D, which offers compatible electrical characteristics and package dimensions for equivalent noise suppression performance in similar applications.