Power Integrations’ SCALE gate drivers available with conformal coating

Power Integrations has introduced factory conformal coating for its SCALE IGBT and MOSFET drivers. Conformal coating is said to enhance system reliability by protecting electronic components against contaminants such as pollution, dust and condensation, which may cause corrosion.

Power Integrations says its factory-coated gate drivers reduce inventory cost, lead time and overall cost of ownership by eliminating the need for manufacturers to send boards to subcontractors for cleaning and coating.

It uses an advanced acrylic lacquer, says Power Integrations, and the highly automated process is qualified in accordance with IEC 60068-2 tests, and followed by 100% optical inspection to ensure “consistent quality”. Conformally coated SCALE gate-driver cores are UL recognised components.

Initially, the 2SC0106T, 2SC0108T, 2SC0435T, 2SP0115T and 1SP0335 gate-driver families will be offered with conformal coating, followed by the 2SD300C17, 2SC0535T, 2SC0635T, 2SP0320 and 1SP0635V series. All future products will also include factory coating, as an option.

“Customers in wind inverters, traction inverters, HVDC MMC stations, photovoltaics and industrial drives where harsh environments are routinely encountered benefit from a factory conformal-coating process,” explains Michael Hornkamp, senior director of marketing for gate-driver products at Power Integrations. “By testing, cleaning and coating the boards in our facility, we reduce the opportunity for the units to be contaminated prior to coating, and we eliminate the time, cost and inconvenience of using third-party subcontractors.”

Bethan Grylls