The JO21-2.5-V from Jauch Quartz is a General Crystal Oscillator with Frequency 1.6250 to 54 MHz, Supply Voltage 2.5 V, Current 4 to 9 mA, Standby Current 10 µA, Load Capacitance 15 pF. Tags: Surface Mount. More details for JO21-2.5-V can be seen below.