B138MB1S-T

Overview

The B138MB1S-T is a surface mount bandpass filter manufactured by Knowles Dielectric Labs. It operates with a center frequency of 13.75 GHz and features a bandwidth of 1 GHz. The component utilizes a 3-SMD, no-lead package design suitable for automated assembly processes. This device belongs to the signal conditioning category within the filters subcategory, intended for high-frequency radio frequency applications requiring precise spectral selection.

Feature Summary

• Surface mount construction for automated PCB integration
• Bandpass filtering capability centered at 13.75 GHz
• Defined 1 GHz operational bandwidth for signal selection

Applications

• Radio frequency signal conditioning circuits
• High-frequency communication system filtering
• Microwave receiver front-end stages

Procurement Notes

Verify the specific ordering suffix and package configuration against the official manufacturer datasheet before procurement. Confirm that the 3-SMD no-lead footprint matches the target board layout requirements. Ensure compatibility with standard reflow soldering profiles specified in the component documentation to maintain electrical integrity during assembly.

Selection Notes

Select this component when a fixed center frequency of 13.75 GHz with a 1 GHz bandwidth is required. The surface mount format supports high-volume manufacturing environments. Evaluate thermal and mechanical constraints associated with the small form factor to ensure reliable long-term operation in the intended application environment.

Part Context

This part is part of the Knowles Dielectric Labs RF filter portfolio, specifically designed for microwave and millimeter-wave applications. It serves as a passive signal conditioning element within complex radio frequency systems, providing necessary attenuation outside the passband to improve signal-to-noise ratios in sensitive receiver architectures.

Replacement Considerations

The B138MB1S-T variant shares specifications with the B138MB1S model, differing primarily in packaging format. Verify exact dimensional tolerances and termination style compatibility when considering direct substitutes from other manufacturers.