J30J-31TJMicro-rectangular connectorGenerally used for aerospace testing equipment, instrument and meter circuit connections, and signal transmission. Features include small size, multiple cores, available in ten specifications of 9, 15, 21, 25, 31, 31, 37, 51, 66, and 74 cores. Utilizes braided wire elastic pins (twisted pins), with high contact density, and product performance meets the requirements of GJB2446.