Two series of miniature, surface-mount, two-terminal gas discharge tubes (GDTs) from Littelfuse are designed to protect sensitive electronics from low-to-medium level lightning-induced surges and other voltage transients. The 3.5 mm diameter size of the CG6 series, miniature, SMT GDT makes it the world’s smallest two-electrode, single-chamber GDT available on the market. It is also the first SMT GDT with two square terminals that offers 3 kA (8/20 μs) surge withstand capability (10 shots).

The CG7 series provides surge handling capability up to 1 kA at 8/20 μs (10 shots) in a miniature SMT footprint with one square terminal. Both series provide rapid response to fast-rising transients and have ultra-low capacitance which helps to minimize insertion and return losses to ensure signal integrity in high-speed applications.

Applications for the CG6 and CG7 series include broadband equipment, satellite and CATV equipment, dataline and Ethernet (up to 10 bE) equipment, ADSL equipment, xDSL equipment, general telecom equipment, G.fast modems, embedded multimedia terminal adapters (EMTAs), set-top boxes, RF connectors, Multimedia over Coax Alliance (MoCA) equipment, base station RF antenna transmitters, and IADs (internet access devices).