The RK300NS from Rakon Limited is a Space Qualified Oscillator with Frequency 80 to 100 MHz, Frequency Stability ±2 to ±4 PPM, Spurious -80 dBc, Allan Deviation (ADEV) 5.00E-11, Output Power 0.001 to 0.0025 W. Tags: Through Hole. More details for RK300NS can be seen below.