The CPJC-10-252R+ from Mini Circuits is a Directional Coupler with Frequency 2400 to 2500 MHz, Coupling 10 dB, Coupling Variation ±1 dB, Directivity 11 to 19 dB, Average Power 2 W. Tags: Surface mount. More details for CPJC-10-252R+ can be seen below.