B279KB1S

Overview

The B279KB1S is a surface-mount bandpass filter manufactured by Knowles Dielectric Labs, designed for high-performance microwave applications. It operates at a center frequency of 27.9 GHz with an 850 MHz bandwidth. The component features a 50 Ohm impedance and exhibits an insertion loss of approximately 4 dB. It utilizes a lead-free SMD package configuration, ensuring compatibility with automated assembly processes while maintaining signal integrity in demanding RF environments.

Feature Summary

• High-performance surface-mount design optimized for microwave frequencies
• Precise 50 Ohm impedance matching for standard RF systems
• Lead-free construction compliant with environmental standards

Applications

• Microwave communication systems
• RF signal processing circuits
• Wireless infrastructure components

Procurement Notes

Verify the specific suffix variant (e.g., -T) required for tape-and-reel packaging against your manufacturing needs. Confirm RoHS compliance status through official datasheets prior to integration. Ensure the selected part number matches the exact center frequency and bandwidth specifications for your circuit design to avoid performance discrepancies.

Selection Notes

Select this component when a 27.9 GHz center frequency is required for microwave applications. Consider the 850 MHz bandwidth and 4 dB insertion loss characteristics relative to system sensitivity requirements. Evaluate the surface-mount form factor for PCB space constraints and ensure thermal management aligns with the operating temperature range specified in the technical documentation.

Part Context

This part belongs to the DLI Surface-Mount Bandpass Filter series, which provides high-quality filtering solutions for RF engineers. The B279KB1S specifically targets the K-band spectrum, offering reliable performance in compact footprints suitable for modern electronic devices requiring precise frequency selection.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct equivalents or cross-reference based on identical electrical parameters such as center frequency, bandwidth, and impedance.