| 摘要 |
<p>PURPOSE:To stabilize the electric characteristics even if a part of solder runs into the gap between a pin and an element within the title voltage dependent non-linear resistor ceramic element having the capacitor characteristics and varistor characteristics for protecting the semiconductor and circuits of equipment from the abnormal high voltage, noise, static electricity, etc., generated from an electric equipment. CONSTITUTION:Within the title voltage dependent non-linear resistor ceramic element, a semiconductor ceramics mainly comprising SrTiO3 having the voltage dependent resistance characteristics takes the shape having a cylindrical through hole in the central part of a cylinder wherein a doughnut type electrode with outer and inner periphery respectively smaller than the outer diameter of the cylinder and equal to the diameter of the through hole while another electrode is integrally arranged on the inner periphery of the through hole on both ends of the cylinder on the other hand, the other electrodes are arranged in the central part of outer peripheral sides of the cylinder at equidistance from both ends. Through these procedures, the distance between electrodes is not to be changed even if a part of solder 7 runs into the gap between a pin 6 and an element 5 thereby enabling the electric characteristics can be stabilized.</p> |
