The SMP1330 Series from Skyworks Solutions is a Limiter Diode with Frequency Range DC to 4 GHz, Insertion Loss 0.3 dB, Capacitance 0.7 to 1 pF, Series Resistance 1.2 to 1.5 Ohms, Breakdown Voltage 35 to 50 V. More details for SMP1330 Series can be seen below.