The JO21-1.8 V from Jauch Quartz is a General Crystal Oscillator with Frequency 1.6250 to 54 MHz, Supply Voltage 1.8 V, Current 3 to 7 mA, Standby Current 10 µA, Load Capacitance 15 pF. Tags: Surface Mount. More details for JO21-1.8 V can be seen below.