BK1608LL121-T

Overview

The BK1608LL121-T is a multilayer chip bead inductor from Taiyo Yuden, designed for high-frequency noise suppression. It features an impedance of 120 Ohms at 100 MHz and supports a maximum DC current of 300 mA. The component has a maximum DC resistance of 350 mOhms and operates within a temperature range of -55°C to +125°C. Housed in a compact 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm x 0.8 mm x 0.95 mm, it provides effective electromagnetic interference filtering for automotive and industrial applications.

Feature Summary

• Multilayer construction for reliable high-frequency noise attenuation
• Automotive-grade reliability with extended temperature tolerance
• Compact surface-mount footprint for dense PCB layouts

Applications

• Automotive electronic circuit noise suppression
• High-speed signal line filtering
• Power supply output noise reduction

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as BK1608LL121-TV exist for automotive specifications. Confirm RoHS compliance status and moisture sensitivity level prior to integration. Ensure the selected packaging format matches production requirements. Cross-reference datasheet revisions to confirm parameter stability. Validate compatibility with automated placement equipment based on package dimensions.

Selection Notes

Select this component when a 120 Ohm impedance at 100 MHz is required for noise suppression. The 300 mA current rating suits low-to-medium power signal lines. The 0603 package offers space efficiency compared to larger ferrite beads. Consider the 350 mOhms DC resistance impact on voltage drop. Evaluate thermal performance within the -55°C to +125°C operating range for environmental suitability.

Part Context

This part belongs to the BK series of multilayer chip bead inductors manufactured by Taiyo Yuden. The series is engineered for robust electromagnetic interference suppression in sensitive electronic circuits. The BK1608LL121-T specifically targets applications requiring stable impedance characteristics across wide temperature variations. It represents a standard solution for high-frequency noise control in modern electronic assemblies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify electrical equivalence including impedance, current rating, and physical dimensions before considering alternative components.