The MBP200C from Massachusetts Bay Technologies is a RF PIN Diode with Reverse Voltage 200 V, Series Resistance 0.9 to 1.6 Ohms, Thermal Resistance 70 Degree/W, Capacitance 0.10 pF, Operating Temperature -55 to 150 Degree C. Tags: Chip. More details for MBP200C can be seen below.