The NZ2520SEA from Nihon Dempa Kogyo is a Clock Oscillator with Frequency 2.75 to 54 MHz, Supply Voltage 1.8 to 3.3 V, Current 3.5 to 80 mA, Load Capacitance 15 pF, Startup Time 10 ms. Tags: Surface Mount. More details for NZ2520SEA can be seen below.