CDR4005

Overview

The CDR4005 is a ceramic band-pass filter manufactured by RFMi, designed for wireless communication systems. It operates with a center frequency of 5.235 GHz and maintains a standard impedance of 50 Ohms. The component features a bandwidth of 180 MHz, supporting applications such as WiFi 5 and WiFi 6. Physically, it is housed in a surface-mount package with a maximum height of 0.128 inches (3.25 mm). This filter provides signal selection capabilities essential for maintaining spectral integrity in high-frequency digital and wireless environments.

Feature Summary

• Ceramic construction for stable band-pass filtering
• Optimized for 5.235 GHz center frequency operation
• Designed for integration into WiFi 5 and WiFi 6 systems

Applications

• WiFi 5 network infrastructure
• WiFi 6 wireless access points
• Digital wireless communication modules

Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm exact electrical tolerances and termination specifications. Ensure the selected variant matches the required PCB footprint and reflow profile. Cross-reference the part number with authorized distributors to confirm current production status and availability before finalizing procurement plans.

Selection Notes

Select this component when a fixed 5.235 GHz center frequency is required for 5Ghz band applications. Consider the 180 MHz bandwidth relative to the specific channel requirements of the target wireless standard. Evaluate the physical dimensions and gull-wing package style against the available board space and assembly constraints.

Part Context

RFMi, an Akoustis brand, specializes in radio frequency components using SAW, crystal, and ceramic technologies. The CDR4005 belongs to their ceramic filter series, which targets digital and wireless communications. These components are engineered to provide reliable frequency control and signal conditioning in compact form factors suitable for modern electronic devices.

Replacement Considerations

Consult official substitution guides for compatible ceramic band-pass filters with matching 5.235 GHz center frequencies and 50 Ohm impedance. Verify that alternative parts maintain the 180 MHz bandwidth and compatible surface-mount package dimensions to ensure seamless integration without redesigning the host circuit board.