MX47 Automotive Waterproof Connectors JAE Electronics MX47 Automotive Waterproof Connectors utilize a 3-row, 39-contact high-density array to achieve a smallest-in-class width and height for an automotive waterproof connector. JAE Electronics MX47 Automotive Waterproof Connectors feature a compact, high pin count, waterproof connector with an operating temperature of -40º C to +125º C. MX47 Automotive Waterproof Connectors are ideal for motorcycles and other harsh environment applications such as automobile and general purpose engines.