The 5th generation mobile networks, also known as 5G.  It has become a hot topic of discussion in recent years. Internet speed is as fast as one second to download a high-definition movie. No longer need to wait for buffering when surfing the Internet. Al

The structure of a crystal oscillator is very simple. Its core is a piece of quartz crystal. Quartz in nature is in a hexagonal state. If the crystal is sliced into a slice according to a certain orientation, it is a quartz wafer. Put a thin layer of silv

Difference between Commercial & Industrial grade Quartz Crystals

Relationship and Difference between HC-49S & HC-49U & HC-49SMD