High-temperature snubberless 8H Triacs save space

Suited to industrial, personal care, smart-home, and smart-building applications, the new Triacs leverage ST’s latest Snubberless high-temperature technology to achieve their outstanding ruggedness. With low on-state voltage (VTM), which ensures high operating efficiency and minimises self-heating, the devices also have low leakage current that is stable over time to reduce standby losses. In addition, robust dynamic performance with high critical turn-off current slope prevents unwanted commutation.

Capable of safely driving inductive loads, the 8H Triacs let designers create rugged and efficient controls for HVAC systems, AC-motor drives, water heaters, room heaters, lighting systems, home appliances, and smart AC plugs.

The complete 8H family spans current ratings from eight to 30A. The peak off-state voltage of 800V ensures robust performance in AC-line-powered applications including three-phase equipment operating from up to 400V RMS. The devices benefit from high noise immunity and can withstand voltage fast transients up to 6kV and voltage gradient (dV/dt) up to 2,000V/µs across the full junction-temperature range.

ST’s 8H Triacs are in production now, in D2PAK, TO-220AB, and TO-220AB insulated packages, priced from $0.39 for orders of 1,000 pieces. Further pricing options are available for larger quantities.