B191KA1S-T

Overview

The B191KA1S-T is a surface mount bandpass filter manufactured by Knowles Dielectric Labs, designed for signal conditioning applications. It operates at a center frequency of 19.1 GHz with a 50 Ohm impedance. The component supports SMD/SMT termination and board mounting. It functions within a temperature range of -55°C to +125°C. The device is supplied in a reel package format.

Feature Summary

• Surface mount construction for automated PCB assembly
• Bandpass filtering capability at microwave frequencies
• Robust thermal performance across extended industrial ranges

Applications

• Microwave communication systems
• Signal conditioning circuits
• RF front-end modules

Procurement Notes

Verify the specific datasheet revision and electrical tolerances against current design requirements. Confirm that the reel packaging aligns with available pick-and-place equipment capabilities. Ensure the operating temperature range meets the environmental specifications of the final application environment before integration.

Selection Notes

Select this component when a fixed 19.1 GHz bandpass response is required in a compact surface mount form factor. Consider the 50 Ohm system impedance compatibility. Evaluate the thermal stability requirements against the specified -55°C to +125°C operational window to ensure reliability under varying conditions.

Part Context

This part belongs to the Knowles Dielectric Labs bandpass filter series, which provides ceramic substrate RF filters. These components are engineered for high-frequency signal integrity in demanding electronic environments, offering consistent performance characteristics for specialized microwave applications.