Level wound reel of component.

摘要

A combination of a length of component carrier tape (10) and a reel (14) having a hub (15) about which the component carrier tape (10) is helically level wound in layers with the wraps of carrier tape (10) in each layer being disposed edge to edge so that those wraps are displaced axially from each other by the width of the carrier tape (10), and with the the opposite edges of wraps of carrier tape (10) in successive layers being angled in opposite directions with respect to the axis of the hub (15). The peripheral surface (18) of the hub (15) has a minimum diameter "D" determined by the formula: $where\; "W"\; is\; the\; width\; of\; the\; carrier\; tape\; (10)\; in\; millimeters\; so\; that\; the\; component\; carrier\; tape\; (10)\; should\; meet\; an\; industry\; camber\; specification\; despite\; cold\; flow\; which\; will\; occur\; in\; transition\; portions\; of\; the\; carrier\; tape\; (10)\; between\; the\; layers.\mathop{\mathrm{image}}$