ABM3C Mini Crystals ABRACON ABM3C Mini Crystals are low in height and are suitable for thin equipment. ABRACON ABM3C Series Mini Crystals come in a glass sealed package which assures high reliability and high-temperature operation, with a 10.0 to 50.0MHz frequency range. The ABM3C Mini Crystals are ideal for automotive and high-density applications, modems, communication and test equipment, and wireless applications. Tight tolerance and stability are available with ABRACON ABM3C Series Mini Crystals.