BAV99QA Dual Series High-Speed Switching Diodes Nexperia BAV99QA Dual Series High-Speed Switching Diodes are housed in leadless ultrasmall surface-mounted plastic packages with visible and solderable side pads. The BAV99QA feature a high switching speed, low leakage current, and a low capacitance. Typical applications include high-speed switching, general-purpose switching, and reverse polarity protection.