IQD, 20MHz Clock Oscillator, ±50ppm HCMOS, 4-Pin SMD LFSPXO018039

From IQD, this CFPS-73 Crystal Clock Oscillator comes in a ceramic package with hermetically sealed metal lid, offering a good standard of environmental resistance to vibration and shock. This oscillator comes in a standard 7 x 5mm size.

CFPP-73 series programmable oscillators are the nearest equivalent fast make capability model

Standard 7 x 5mm crystal oscillator Ceramic package with a seam sealed metal lid, hermetically sealed
Model CFPS-73
Model Issue number 12

Crystal Oscillators 7x5mm Ceramic case