CDR2004

Overview

The RFMi CDR2004 is a monoblock ceramic band-pass filter designed for RF applications. It operates with a center frequency of 3500 MHz and provides a bandwidth of 200 MHz. The component features a signal insertion attenuation of 2.5 dB and is optimized for 50 Ohm systems. It utilizes a surface-mount package with dimensions of 4.40mm x 3.60mm x 2.00mm, suitable for compact electronic designs.

Feature Summary

• Monoblock ceramic construction for stable RF performance
• Band-pass filtering design centered at 3500 MHz
• Surface-mount technology for automated assembly

Applications

• Sub-6G wireless communication systems
• 5th Generation (5G) mobile infrastructure
• RF front-end modules requiring precise band selection

Procurement Notes

Verify the specific datasheet version to confirm mechanical tolerances and electrical specifications match your design requirements. Ensure compatibility with standard surface-mount reflow profiles. Confirm that the 50 Ohm impedance matches your system interface. Check for any specific handling instructions regarding the ceramic substrate integrity during PCB assembly processes.

Selection Notes

Select this component when a narrow 200 MHz bandwidth is required around the 3.5 GHz spectrum. The low insertion loss of 2.5 dB makes it suitable for sensitive receiver chains. The small footprint supports high-density board layouts. Consider thermal management capabilities if operating in high-power environments, although ceramic filters generally handle moderate power levels well.

Part Context

This part belongs to the RFMi ceramic filter family, which focuses on passive RF components for modern wireless standards. These filters are engineered to replace bulkier LC solutions, offering superior selectivity and size reduction. The CDR series is specifically tailored for Sub-6G and 5G applications where space constraints and signal purity are critical design factors.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. Evaluate alternative ceramic band-pass filters from other manufacturers only if they match the exact 3500 MHz center frequency, 200 MHz bandwidth, and 4.4x3.6mm package dimensions.