PCB terminal blocks are insulated devices that are mounted on printed circuit boards (PCBs) to terminate or secure different wires. These devices are also referred to as electrical blocks, and they comprise several terminals that are arranged in a long strip. Electronic Expeditors (EE USA) is a distributor of PCB terminal block connectors from brands such as Altech. Our selection features several fixed and pluggable terminal blocks, which are distinguishable owing to their modular construction. These terminal blocks feature metric and US pin spacing, and provide dependable connections without any wire lugs. Fixed blocks possess the smallest pin spacing than pluggable terminal blocks.