B142LA2S-T

Overview

The B142LA2S-T is a surface-mount bandpass filter manufactured by Knowles Dielectric Labs, designed for signal conditioning applications. It operates at a center frequency of 14.2 GHz with a bandwidth of 4500 MHz. The component features a 50 Ohm impedance and exhibits an insertion loss of 4.25 dB. It utilizes a 3-SMD, no-lead package suitable for board mounting. The device supports an operating temperature range from -55°C to +125°C and is supplied in a reel packaging format.

Feature Summary

• Microstrip bandpass filter topology fabricated on ceramic substrate
• Designed for high-performance signal conditioning in compact footprints
• Supports operation across extended industrial temperature ranges

Applications

• Satellite communication systems
• Ku-band RF front-end modules
• Microwave signal processing circuits

Procurement Notes

Verify the specific suffix 'T' against official datasheets to confirm reel packaging requirements. Confirm RoHS compliance status through manufacturer documentation. Ensure compatibility with SMD/SMT assembly processes. Validate that the 3-SMD no-lead package matches PCB footprint designs. Check current availability as supply may be restricted.

Selection Notes

Select this component for Ku-band applications requiring precise 14.2 GHz filtering. Consider the 4500 MHz bandwidth for wideband signal integrity. Evaluate the 4.25 dB insertion loss against system link budget constraints. Ensure the 50 Ohm impedance aligns with transmission line characteristics. Verify thermal stability within the specified -55°C to +125°C range.

Part Context

This part belongs to the Knowles Dielectric Laboratories microwave product family. These filters utilize classical topologies on ceramic substrates. They are engineered for excellent performance in small form factors. The series targets demanding RF and microwave environments.

Replacement Considerations

Publicly confirmed substitute part numbers for B142LA2S-T are not available in the provided source data. Consult manufacturer engineering support for qualified alternatives.