BK1005HS431-T

Overview

The BK1005HS431-T is a surface-mount ferrite bead manufactured by Taiyo Yuden in a 0402 (1005 metric) package. It features a single circuit configuration with two terminals for series insertion in power or signal lines. The component provides an impedance of 430 ohms at 100 MHz, designed to suppress high-frequency noise. Its rated current is 0.3 A, and it exhibits a maximum DC resistance of 1.5 ohms. This device is intended for use in portable electronic devices requiring compact noise suppression solutions.

Feature Summary

• Compact 0402 surface-mount footprint suitable for space-constrained designs
• High impedance characteristics effective for high-frequency noise attenuation
• Single-line configuration simplifies circuit layout and integration

Applications

• Portable communication devices such as mobile phones and smartphones
• Consumer electronics including digital cameras and MP3 players
• Automotive infotainment systems requiring EMI suppression

Procurement Notes

Verify the specific suffix 'T' indicates the standard tape and reel packaging format when ordering. Confirm that the 0402 package dimensions align with your PCB land pattern requirements. Ensure the operating temperature range meets your application's environmental specifications. Check for RoHS compliance status if required by your manufacturing standards. Validate the impedance tolerance against your noise suppression design criteria.

Selection Notes

Select this component when space constraints necessitate a 0402 package size. Choose based on the required 430-ohm impedance at 100 MHz for your target noise frequency. Consider the 0.3 A current rating to ensure adequate margin for your circuit's operational current. Evaluate the DC resistance impact on voltage drop within your power distribution network. Compare alternative impedances if your noise spectrum differs significantly from the standard specification.

Part Context

This ferrite bead belongs to Taiyo Yuden's BK series, which focuses on miniaturized noise suppression components. The series offers various impedance values and current ratings across multiple package sizes. The BK1005 designation specifically refers to the 1.0mm x 0.5mm body dimensions. These components are widely used in consumer electronics where board real estate is limited.

Replacement Considerations

Direct substitutes must match the 0402 package, 430-ohm impedance at 100 MHz, and similar current handling capabilities. Verify pin compatibility and mounting orientation before substitution. Cross-reference datasheets for thermal performance and impedance frequency characteristics. Ensure any replacement maintains equivalent electromagnetic interference suppression effectiveness.