Ultra Low Profile 0805 5 dB Directional Coupler. The DC4859J5005AHF is a low cost, low profile sub-miniature high performance 5 dB directional coupler in an easy to use RoHS compliant, Halogen Free surface mount package. It is designed for 4700 – 5900MHz applications including: WiFi and P2P / P2MP applications. The DC4859J5005AHF is ideal for power detection, signal injection and other applications where low insertion loss signal monitoring is required. The DC4859J5005AHF is available on tape and reel for pick and place high volume manufacturing. All of the Xinger components are constructed from ceramic filled PTFE composites which possess excellent electrical and mechanical stability.