The MAP-252X from M-pulse Microwave is a RF Schottky Diode with Forward continuous Current 1 mA, Forward Voltage 0.325 to 0.425 V, Power Dissipation 100 mW, Capacitance 0.15 - 0.3 pF, Operating Temperature -65 to +150 Degrees C. More details for MAP-252X can be seen below.