B191KA1S

Overview

The B191KA1S 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 bandwidth of 500 MHz. The component features a 50 Ohm impedance and an insertion loss of 4.25 dB. It utilizes a ceramic substrate and is housed in a 3-SMD, no-lead package.

Feature Summary

• Surface mount design for automated assembly
• Ceramic substrate construction for stability
• Bandpass filtering capability at microwave frequencies

Applications

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

Procurement Notes

Verify the specific manufacturer part number against official Knowles Dielectric Labs documentation to ensure compatibility. Confirm that the 3-SMD package and ceramic substrate specifications match your design requirements. Check for any updated datasheets or environmental compliance information before finalizing procurement decisions.

Selection Notes

Select this component when a 19.1 GHz center frequency and 500 MHz bandwidth are required. Ensure the system supports 50 Ohm impedance matching. Consider the 4.25 dB insertion loss impact on signal integrity. Verify that the surface mount package fits the PCB layout constraints.

Part Context

This part belongs to the bandpass filter category within Knowles Dielectric Labs' signal conditioning portfolio. It is engineered for high-frequency RF applications requiring precise frequency selection. The product line focuses on compact, reliable components for modern electronic systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Knowles Dielectric Labs resources for potential alternatives if this specific model is unavailable.