B190MB1S-T

Overview

The B190MB1S-T is a surface mount bandpass filter manufactured by Knowles Dielectric Labs, designed for signal conditioning applications. It operates at a center frequency of 19 GHz with a bandwidth of 1 GHz. The component features a 50 Ohm impedance and utilizes SMD/SMT termination types for board mounting. It is rated for an operating temperature range from -55°C to +125°C. The device exhibits an insertion loss of 3 dB and is packaged in reels or cut tape formats suitable for automated assembly processes.

Feature Summary

• Provides precise RF signal filtering within the specified microwave frequency range
• Supports high-temperature operation suitable for demanding electronic environments
• Enables compact integration through surface-mount technology packaging

Applications

• Microwave communication systems requiring bandpass filtering
• Signal conditioning circuits in RF front-end modules
• Electronic equipment operating in extreme temperature conditions

Procurement Notes

Verify the specific datasheet version for the B190MB1S-T to confirm exact electrical tolerances and mechanical dimensions prior to design finalization. Ensure that the procurement source provides official documentation from Knowles Dielectric Labs to guarantee component authenticity and performance consistency. Cross-reference the package type and termination specifications with your PCB layout requirements to ensure compatibility during assembly.

Selection Notes

Select this component when a fixed 19 GHz center frequency with 1 GHz bandwidth is required for signal integrity. Consider the 3 dB insertion loss specification against system link budget requirements. The wide operating temperature range makes it suitable for industrial or aerospace applications where thermal stability is critical. Verify that the 50 Ohm impedance matches the surrounding circuit topology to minimize signal reflection.

Part Context

This part belongs to the B-series bandpass filters from Knowles Dielectric Labs, which are ceramic-based RF components. These filters are engineered for high-performance microwave applications. The B190MB1S-T variant specifically targets the 19 GHz spectrum, distinguishing it from other models in the series that operate at different center frequencies such as 7 GHz or 14 GHz.

Replacement Considerations

Publicly confirmed substitute part numbers for the B190MB1S-T are not available in the provided reference data. Engineers should consult the manufacturer directly for qualified alternatives or verify if other B-series models with similar frequency characteristics can be adapted for the specific application.