VOLTAGE NON-LINEAR RESISTOR PORCELAIN AND ELECTRONIC COMPONENT

• Main Authors: YOSHIDA HISAYOSHI, KOYANAGI TAKESHI, ITAMI TAKAHIRO, UCHIDA MASAYUKI, YAMADA YOSHIKI, KAJIWARA KAZUAKI
• Format: Patent
• Language: English; Japanese
• Published: 19.01.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; RESISTORS

PROBLEM TO BE SOLVED: To provide a voltage non-linear resistor porcelain that can achieve an excellent varistor characteristic, particularly excellent ESD characteristic resistance, and is further used for a component such as an on-vehicle component or the like to which high moisture resistance is required.SOLUTION: A voltage non-linear resistor porcelain contains oxide of Zn, oxide of Co, oxide of R (specific rare earth), oxide of Cr, oxide of M1 (Ca, Sr), oxide of M2 (Al, Ga, In) and strontium titanate. When the content of oxide of Zn is set to 100 parts by mol in terms of Zn, the content of oxide of Co ranges from 0.30 to 10 parts by mol in terms of Co, the content of oxide of R ranges from 0.10 to 10 parts by mol in terms of R, the content of oxide of Cr ranges from 0.01 to 2 parts by mol in terms of Cr, the content of oxide of M1 ranges from 0.10 to 5 parts by mole in terms of M1, the content of oxide of M2 ranges from 0.0005 to 5 parts by mol in terms of M2, and the content of strontium titanate ranges from 0.10 to 5 parts by mol in terms of SrTiO.SELECTED DRAWING: None 【課題】良好なバリスタ特性、特に良好な耐ＥＳＤ特性を得ることができ、さらに、車載部品等の高い耐湿性が求められる部品にも用いることができる電圧非直線性抵抗体磁器を提供する。【解決手段】 Ｚｎの酸化物、Ｃｏの酸化物、Ｒ（特定の希土類）の酸化物、Ｃｒの酸化物、Ｍ１（Ｃａ、Ｓｒ）の酸化物、Ｍ２（Ａｌ、Ｇａ、Ｉｎ）の酸化物およびチタン酸ストロンチウムを含有する電圧非直線性抵抗体磁器である。Ｚｎの酸化物の含有量をＺｎ換算で１００モル部とする場合に、Ｃｏの酸化物の含有量がＣｏ換算で０．３０〜１０モル部、Ｒの酸化物の含有量がＲ換算で０．１０〜１０モル部、Ｃｒの酸化物の含有量がＣｒ換算で０．０１〜２モル部、Ｍ１の酸化物の含有量がＭ１換算で０．１０〜５モル部、Ｍ２の酸化物の含有量がＭ２換算で０．０００５〜５モル部、チタン酸ストロンチウムの含有量がＳｒＴｉＯ３換算で０．１０〜５モル部である。【選択図】なし