BK0603HM121-T

Overview

The BK0603HM121-T is a single-line multilayer chip ferrite bead from the Taiyo Yuden BK series, designed for surface-mount assembly in the 0201 (0603 metric) package. It exhibits an impedance of 120 Ohms at 100 MHz with a maximum DC resistance of 400 milliohms and a rated current of 200 mA. The component operates within a temperature range of -55°C to 125°C and measures 0.60mm x 0.30mm x 0.33mm. This device utilizes internal silver printed layers to form a closed circuit that functions as a magnetic shield, thereby minimizing heat generation and crosstalk during operation.

Feature Summary

• Internal silver printed layer creates a closed circuit acting as a magnetic shield
• Minimizes heat generation and crosstalk through shielding design
• Suitable for high-reliability automotive, industrial, and medical applications

Applications

• Automotive electronic systems requiring AEC-Q200 qualification
• Industrial equipment signal integrity protection
• Medical equipment noise suppression circuits

Procurement Notes

Verify component authenticity against official Taiyo Yuden documentation due to discontinued status. Confirm package dimensions and electrical parameters match design requirements. Check for authorized distributors offering genuine stock. Ensure compliance with RoHS3 specifications and EAR99 export classification. Validate supplier credentials before procurement.

Selection Notes

Select this component for space-constrained designs requiring effective EMI suppression in small footprints. Consider the 200mA current rating and 400mΩ DCR for power handling needs. Evaluate the 120Ω impedance at 100MHz for target frequency filtering. Ensure compatibility with 0201 soldering processes and thermal management strategies given the compact size.

Part Context

Part of the BK series multilayer chip bead inductors manufactured by Taiyo Yuden. These components are produced using proprietary raw materials and advanced technologies for enhanced control and flexibility. The series includes automotive-grade products certified under TS-16949 standards, ensuring reliability in harsh environments.

Replacement Considerations

Official substitutes include the BK0603HS121-T, which shares identical impedance and current ratings but features a slightly higher maximum DC resistance of 450 milliohms. Both parts are discontinued; verify availability and parameter equivalence before substitution.