B028RF2S

Overview

The B028RF2S is a surface-mount bandpass filter manufactured by Knowles Dielectric Labs, designed for radio frequency signal conditioning. It operates with a center frequency of 3 GHz and provides a bandwidth of 2 GHz. The component features an insertion loss of 2.5 dB and maintains a system impedance of 50 Ohms. It utilizes a 6-SMD, no-lead package configuration suitable for board mounting. The device supports a maximum operating temperature of +125 C and is part of the broader 2 to 18 GHz SM Bandpass Filters series.

Feature Summary

• Utilizes ceramic substrate technology for RF filtering applications
• Designed as a surface-mount component for automated assembly processes
• Provides specific center frequency selection within the microwave spectrum

Applications

• Radio frequency signal conditioning circuits
• Microwave communication systems requiring bandpass filtering
• Electronic equipment operating within specified temperature ranges

Procurement Notes

Verify the exact datasheet specifications directly from the manufacturer or authorized distributor before integration. Confirm that the 6-SMD package dimensions align with your PCB footprint requirements. Ensure that the thermal management capabilities meet the operational environment constraints, specifically regarding the maximum operating temperature limit. Cross-reference the center frequency and bandwidth parameters against your system design needs to ensure proper signal integrity.

Selection Notes

Select this component when a fixed 3 GHz center frequency with a 2 GHz bandwidth is required for RF applications. Consider the 50 Ohm impedance match for compatibility with standard transmission lines. Evaluate the 2.5 dB insertion loss impact on overall system gain. The surface-mount form factor is suitable for high-density circuit board designs where space efficiency is critical compared to through-hole alternatives.

Part Context

This model belongs to the Knowles Dielectric Labs family of surface-mount bandpass filters covering frequencies from 2 to 18 GHz. These components are engineered for consistent performance in microwave and RF environments. The series emphasizes reliability and precise frequency control using advanced ceramic materials. Designers often utilize these filters to isolate specific frequency bands while attenuating out-of-band signals in complex electronic architectures.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by matching electrical parameters such as center frequency, bandwidth, and impedance. Consult the manufacturer for potential obsolescence notices or recommended upgrades if sourcing becomes restricted.