Our reference list shows you which ICs, among others, our quartz crystals can be used with. Of course, for the clocking of other ICs corresponding crystals - with very low resistance for exceptionally fast and safe oscillation - from our outstandingly wide and deep product range available. For new developments we suggest MHz quartz series SMD03025/4 (3.2x2.5mm/4pad) or SMD2016/4 (2.0x1.6/4mm). The SMD03025/4 series SMD crystal is currently the cheapest miniaturised SMD quartz, or the SMD02016/4 series SMD crystal is used in applications where the SMD03025/4 is too large. Additionally, if you require SMD quartz crystals for ultrasonic, we recommend the following product housings: SMD02016/4US and SMD03025/4US.