B043QB4S

Overview

The B043QB4S is a surface mount bandpass RF filter manufactured by Knowles Dielectric Labs. It operates at a center frequency of 4500 MHz with a bandwidth of 2200 MHz. The component features an insertion loss of 6.5 dB and utilizes a 15-SMD, no lead package design.

Feature Summary

• Utilizes low loss temperature stable materials for minimal performance variation
• Designed for small size applications in surface mount configurations

Applications

• RF signal conditioning
• Wireless communication systems
• RFID applications

Procurement Notes

Verify the specific datasheet version and RoHS compliance status before procurement. Confirm that the 15-SMD package dimensions match your PCB layout requirements. Ensure compatibility with your assembly process for no-lead components. Check for any specific handling instructions regarding the ceramic construction.

Selection Notes

Select this component when a 4.5 GHz center frequency and 2.2 GHz bandwidth are required. Consider the 6.5 dB insertion loss impact on system gain. Evaluate the 15-SMD footprint against available board space. Compare thermal stability characteristics against alternative filter technologies for your operating environment.

Part Context

This part belongs to the DLI surface mount catalog bandpass filters. These filters are characterized by their use of specialized dielectric materials designed to maintain performance across varying temperatures while occupying minimal board area.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.