Finish nickel plated, qq-n-290; o/a lg 1.036 in. Min, 1.042 max; w 0.470 in. Max; ht 0.825 in. Max; 4 pins 0.030 in. Min 0.035 in. Max diameter equally spaced 0.200 in. Nom center to center; operating temp minus 55 degrees c to 90 degrees c; input voltage dc 5v porm 10 pct