Voltage-dependent nonlinear resistor

Abstract

Abstract PURPOSE:To optimize forming conditions of first and second layers and to improve environmental resistance with long life by providing a polycrystalline mixed high resistance layer having a specific thickness and made of zinc silicate, zinc antimonate and bismuth on the side face of a voltage-dependent nonlinear resistor body, and a glass layer having a specific thickness outside the resistance layer. CONSTITUTION:A polycrystalline mixed high resistance layer having an average thickness of 5-30mum and made of zinc silicate, zinc antimonate and bismuth oxide is formed on the side face of a voltage-dependent nonlinear resistor body 1 which contains zinc oxide as a main ingredient and is made by molding a material containing bismuth oxide and then baking it, and a glass layer 4A having 20mum or more of thickness is formed outside the resistance layer. Since the resistance layer 3A having a predetermined thickness and the layer 4A are formed on the side face of the body 1, the surface of the resistor is densified, breakdown strength is increased, and moisture resistance is improved.

Inventors

• 👤 Yoshio Takada
• 👤 良雄 高田
• 👤 Yutaka Takada
• 👤 裕 高田

Bibliographic Details