The MAP-252K from M-pulse Microwave is a RF Schottky Diode with Forward continuous Current 1 mA, Forward Voltage 0.375 to 0.55 V, Power Dissipation 100 mW, Capacitance 0.1 - 0.2 pF, Operating Temperature -65 to +150 Degrees C. More details for MAP-252K can be seen below.