B380KA1S

Overview

The B380KA1S is a surface-mount bandpass filter manufactured by Knowles Dielectric Labs, designed for radio frequency signal conditioning applications. It operates with a center frequency of 38 GHz and features a bandwidth of 1 GHz. The component exhibits an insertion loss of 4.5 dB and maintains a system impedance of 50 Ohms. Constructed using thin-film processing on temperature-stable dielectrics, it ensures high selectivity in demanding environments. The device is housed in a compact 3-SMD, no-lead package suitable for automated board mounting.

Feature Summary

• Utilizes thin-film processing and high-permittivity dielectrics for enhanced performance
• Provides high selectivity through temperature-stable material construction
• Designed for surface-mount integration in RF signal paths

Applications

• Radio Frequency (RF) filtering systems
• Microwave communication circuits
• Signal conditioning modules requiring precise frequency selection

Procurement Notes

Verify the specific datasheet version and mechanical dimensions prior to finalizing the design, as manufacturing specifications may be subject to updates. Confirm that the 3-SMD footprint matches the target PCB layout exactly. Ensure that the thermal management strategy accounts for the operating environment specified in the official documentation to maintain reliability.

Selection Notes

Select this component when a 38 GHz center frequency with a 1 GHz bandwidth is required. Consider the 4.5 dB insertion loss impact on system gain and noise figure. Evaluate the 50 Ohm impedance compatibility with existing transmission lines. Assess the suitability of the SMD package for the intended assembly process and spatial constraints within the electronic assembly.

Part Context

This part belongs to the B-series of surface-mount bandpass filters from Knowles Dielectric Labs. These components are engineered for microwave and millimeter-wave applications where size and performance are critical. The series leverages advanced thin-film technology to achieve stable electrical characteristics across varying temperatures, distinguishing them from bulkier traditional filter solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.