CDR3003

Overview

The CDR3003 is a ceramic bandpass filter manufactured by RFMi, designed for wireless communication applications. It operates at a center frequency of 5.235 GHz with a bandwidth of 180 MHz. The component features a 50 Ohm impedance and utilizes nonstandard packaging suitable for surface mount technology. This device serves as a signal conditioning element within the RF front-end, specifically targeting the 5.8 GHz Wi-Fi frequency range to ensure spectral purity and interference rejection.

Feature Summary

• Provides precise bandpass filtering for 5.8 GHz wireless signals
• Maintains 50 Ohm system impedance for optimal power transfer
• Utilizes ceramic technology for stable RF performance

Applications

• Wi-Fi modules operating in the 5.8 GHz band
• Wireless local area network (WLAN) transceivers
• RF front-end signal conditioning circuits

Procurement Notes

Verify the specific datasheet version and package dimensions prior to integration, as ceramic filters may have unique footprint requirements. Confirm RoHS compliance status through official manufacturer documentation. Ensure that the 180 MHz bandwidth aligns with the required channel specifications for the target application. Cross-reference the part number with authorized distributors to confirm current availability and authenticity.

Selection Notes

Select this component when designing systems requiring narrowband filtering around 5.235 GHz. The 180 MHz bandwidth must accommodate the desired signal spectrum while rejecting adjacent channel interference. Consider the physical size and mounting orientation during PCB layout. Verify thermal stability requirements against the operational environment to ensure consistent performance over temperature variations.

Part Context

RFMi, an Akoustis brand, specializes in SAW, Xtal, and Ceramic technologies for digital and wireless applications. The CDR3003 belongs to their ceramic filter portfolio, which provides reliable frequency selection for high-frequency wireless devices. This product line supports the development of compact and efficient RF solutions for modern communication standards.

Replacement Considerations

No public confirmed substitute part numbers are available for the CDR3003. Designers should consult RFMi directly for potential alternatives or updated components within the same family.