B028LB7S

Overview

The B028LB7S is a surface mount bandpass filter manufactured by Knowles Dielectric Labs. It operates with a center frequency of 2.8 GHz and provides a bandwidth of 200 MHz. The component features a 50 Ohm impedance and an insertion loss of 2.5 dB. Designed for board mounting, it utilizes SMD/SMT termination types. The device is housed in a 14-SMD, no lead package configuration.

Feature Summary

• Surface mount construction for automated assembly integration
• Bandpass filtering capability centered at 2.8 GHz
• Standard 50 Ohm system impedance compatibility

Applications

• RF signal conditioning circuits
• Wireless communication systems
• Microwave instrumentation

Procurement Notes

Verify the specific package variant against official datasheets, as distributor listings may reference evaluation boards or different suffixes. Confirm RoHS compliance status directly with the manufacturer documentation before procurement. Ensure the ordering part number matches the exact electrical specifications required for the design to avoid functional mismatches.

Selection Notes

Select this component when a fixed 2.8 GHz center frequency with 200 MHz bandwidth is required. The 2.5 dB insertion loss specification should be evaluated against link budget requirements. The 14-SMD no-lead package necessitates compatible PCB land patterns and reflow soldering profiles suitable for small outline devices.

Part Context

This component belongs to the Knowles Dielectric Labs bandpass filter series. It is categorized under signal conditioning components designed for radio frequency applications. The product line focuses on ceramic-based filters offering stable performance in microwave frequency ranges.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.