The BAP50-05W from NXP Semiconductors is a RF PIN Diode with Insertion Loss 0.36 to 1.92 dB, Isolation 13.5 to 19 dB, Forward Voltage 0.95 to 1.1 V, Forward Current 50 mA, Reverse Voltage 50 V. Tags: Surface Mount. More details for BAP50-05W can be seen below.