High Voltage Miniature Gas Discharge Tubes (GDT) - CG4 Series

The CG4 series GDT is the first high-voltage, surface-mount gas discharge tube (GDT) from Littelfuse with two squared terminals, that is capable of withstanding surge currents of 3 kA at 8/20 μs in a small form factor. CG4 series, two-terminal, high-voltage miniature gas discharge tubes are high-voltage (800 V – 3000 V) devices designed for over-voltage protection for high-isolation applications.

Applications for the CG4 series GDT include appliances and white goods, such as air conditioning units; industrial systems, like high-voltage power supplies, variable frequency drivers, and high-voltage test equipment; medical electronics, such as NMR medical equipment and X-ray machines; and consumer electronics, like set-top boxes.

Features		Benefits	PDF: Gas Discharge Tube Products
High DC breakdown voltage: 800 V to 3000 V Surface-mount form factor with two squared terminals Medium surge capability: 3 kA (8/20 µs)		Provides high-voltage isolation, suitable for applications where hi-pot testing is required Aligns with the trend toward SMT in compact, space-limited applications Square terminals help improve manufacturing efficiency during PCB assembly process Enables greater design flexibility by offering a GDT option for applications with surge protection requirements up to 3 kA