B119LB1S-T

Overview

The B119LB1S-T is a surface mount bandpass filter manufactured by Knowles Dielectric Labs, designed for signal conditioning applications. It operates at a center frequency of 11.9 GHz with a bandwidth of 500 MHz and a 3 dB attenuation level. The component features a 50 Ohm impedance and utilizes an SMD/SMT termination type in a 3-SMD, no lead package configuration. It supports board mounting and functions within a temperature range of -55°C to +125°C.

Feature Summary

• Provides precise bandpass filtering at 11.9 GHz with 500 MHz bandwidth
• Utilizes temperature-stable dielectric materials for reliable performance
• Designed for high-reliability surface mount integration

Applications

• Satellite communication systems
• Microwave signal conditioning circuits
• RF front-end filtering modules

Procurement Notes

Verify the specific datasheet for the B119LB1S-T variant against the generic B119LB1S data, as suffixes may indicate packaging or tolerance differences. Confirm RoHS compliance status and ensure the 3-SMD footprint matches your PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component when a narrow 500 MHz bandwidth is required at 11.9 GHz. Ensure the design accommodates the 3-SMD no-lead package dimensions. Verify that the operating environment stays within the specified -55°C to +125°C range to maintain filter stability and performance integrity.

Part Context

This part belongs to the Bandpass series from Knowles Dielectric Labs, focusing on microwave signal conditioning. It complements other filters like the B118LB4S and B095MB1S, offering specialized frequency selection for high-frequency RF applications requiring stable dielectric characteristics.

Replacement Considerations

Check for direct substitutes within the B119 series. Generic replacements may not match the 500 MHz bandwidth or 11.9 GHz center frequency precisely. Validate electrical parameters against the original specification sheet before substitution.