Conformal coating increases robustness in Power Integrations’ Scale gate drivers

Power Integrations has introduced factory conformal coating for its Scale IGBT and MOSFET drivers. Conformal coating enhances system reliability by protecting electronic components against contaminants such as pollution, dust and condensation, which may cause corrosion, explains the company. Power Integrations’ factory-coated gate drivers reduce inventory cost, lead time and overall cost of ownership by eliminating the need for manufacturers to send boards to sub-contractors for cleaning and coating.

Power Integrations uses an acrylic lacquer, broadly used in the industrial and automotive sectors. The highly automated process is qualified in accordance with IEC 60068-2 tests, and is followed by 100 per cent 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, and the company will make the  2SD300C17, 2SC0535T, 2SC0635T, 2SP0320 and 1SP0635V series available in the near future. All future products will also include factory coating, as an option.

Michael Hornkamp, senior director of marketing for gate driver products at Power Integrations said: “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. 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.”

Power Integrations specialises in semiconductor technologies for high-voltage power conversion. The company’s products are key building blocks in the clean-power ecosystem, enabling the generation of renewable energy as well as the efficient transmission and consumption of power in applications ranging from milliwatts to megawatts.

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