World's smallest GDT protect electronics from low-to-medium level surges

Designed to protect sensitive electronics from low-to-medium level lightning-induced surges and other voltage transients, two new ranges of miniature surface-mount two-terminal gas discharge tubes (GDTs) have been introduced by Littelfuse. The 3.5mm 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 3kA (8/20µs), surge withstand capability (10 shots). The CG7 Series provides surge handling capability up to 1kA at 8/20µs (10 shots) in a miniature SMT footprint with one square and one round 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. The CG6 and CG7 Series GDTs are suitable for a broad range of applications, including broadband equipment, satellite and CATV equipment, data-line and Ethernet (up to 10bE) 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 internet access devices (IADs). “For space-limited applications, compact surface-mount devices like these are gaining popularity fast and the square terminals on these new devices help improve manufacturing efficiency during PCB assembly,” said Stephen Li, GDT product manager, Littelfuse. “The CG6 and CG7 Series are perfect for applications that demand a combination of a miniature SMT footprint, low insertion loss, and fast response to surges.”