The TCXO5300Z-12.678303MHz-A from Dynamic Engineers is a TCXO with Frequency 12.678303 MHz, Supply Voltage 3.135 to 3.465 V, Output_Voltage 0.33 to 2.97 V, Current 4 mA, Phase Noise -155 to 95 dBc/Hz. Tags: Surface Mount. More details for TCXO5300Z-12.678303MHz-A can be seen below.