The MA4L011-1056 from MACOM is a Limiter Diode with Frequency Range 10 MHz to 18 GHz, CW Input Power 2 W, Input Peak Power 49.03 dBm, Capacitance 0.38 pF, Series Resistance 2.1 Ohms. Tags: Surface Mount. More details for MA4L011-1056 can be seen below.