AEL Crystals HC-49/U Quartz Crystal Resonators Through Hole - AEL X20M000000L028, A 20.000000MHz crystal resonator with a tolerance of 30ppm in a HC-49/U style holder that is suitable for a wide range of frequency control applications and serves as direct replacement for existing designs. AEL X20M000000L028 20.0MHz HC49/U Quartz Crystal Resonator
