JPS6444003A - Voltage-dependent nonlinear resistance ceramic composition - Google Patents

Voltage-dependent nonlinear resistance ceramic composition

Info

Publication number
JPS6444003A
JPS6444003A JP62200033A JP20003387A JPS6444003A JP S6444003 A JPS6444003 A JP S6444003A JP 62200033 A JP62200033 A JP 62200033A JP 20003387 A JP20003387 A JP 20003387A JP S6444003 A JPS6444003 A JP S6444003A
Authority
JP
Japan
Prior art keywords
varistor
baked
main composition
mixing
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62200033A
Other languages
Japanese (ja)
Other versions
JP2638599B2 (en
Inventor
Toshio Tate
Hajime Yamamoto
Mitsunori Terabayashi
Hitoshi Ishiwari
Junichi Osawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOKURIKU DENKI KOGYO KK
Hokuriku Electric Industry Co Ltd
Original Assignee
HOKURIKU DENKI KOGYO KK
Hokuriku Electric Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HOKURIKU DENKI KOGYO KK, Hokuriku Electric Industry Co Ltd filed Critical HOKURIKU DENKI KOGYO KK
Priority to JP62200033A priority Critical patent/JP2638599B2/en
Publication of JPS6444003A publication Critical patent/JPS6444003A/en
Application granted granted Critical
Publication of JP2638599B2 publication Critical patent/JP2638599B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/105—Varistor cores
    • H01C7/108—Metal oxide
    • H01C7/115—Titanium dioxide- or titanate type

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

Abstract

PURPOSE:To obtain a varistor composition having excellent humidity resistance by respectively mixing specified amounts of metal oxides of one of Gd2O3, Tb4O7 and Yb2O3 and one of NiO and Cr2O3 to the main composition containing the specified amount of SrTiO3 and CaTiO3 or MgTiO3 as the remainder. CONSTITUTION:A main composition is fabricated by mixing SrTiO3 of 70.0-99.9mol% and CaTiO3 or MgTiO3 of 30-0.1mol%. This main composition is wet-mixed with a metal oxide of a kind of Gd2O3, Tb4O7 and Yb2O3 and a metal oxide of one of NiO and Cr2O3 so that the predetermined composition ratio can be obtained. After the mixing process, they are temporarily baked under a high temperature. Thereafter, a binder of polyvinyl alcohol is added and the material can be changed to particles. These are compressed and formed into a disk type molded material. This is then baked in a reduction atmosphere and finally conductive metal film electrodes are formed by silver having ohmic contacts to both surfaces of such baked material, thereby completing a varistor. Accordingly, a varistor element having small changing rate of varistor voltage V10 and small static capacitance can be obtained.
JP62200033A 1987-08-12 1987-08-12 Voltage non-linear resistor ceramic composition Expired - Lifetime JP2638599B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62200033A JP2638599B2 (en) 1987-08-12 1987-08-12 Voltage non-linear resistor ceramic composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62200033A JP2638599B2 (en) 1987-08-12 1987-08-12 Voltage non-linear resistor ceramic composition

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP6009363A Division JP2573466B2 (en) 1994-01-31 1994-01-31 Voltage non-linear resistor ceramic composition

Publications (2)

Publication Number Publication Date
JPS6444003A true JPS6444003A (en) 1989-02-16
JP2638599B2 JP2638599B2 (en) 1997-08-06

Family

ID=16417704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62200033A Expired - Lifetime JP2638599B2 (en) 1987-08-12 1987-08-12 Voltage non-linear resistor ceramic composition

Country Status (1)

Country Link
JP (1) JP2638599B2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625606A (en) * 1985-07-02 1987-01-12 松下電器産業株式会社 Voltage depending non-linear resistor ceramic composition
JPS6243107A (en) * 1985-08-21 1987-02-25 太陽誘電株式会社 Ceramic composition for varistor
JPS62252904A (en) * 1986-04-25 1987-11-04 松下電器産業株式会社 Porcelain compound for voltage nonlinear resistance unit andmanufacture of the same
JPS62282412A (en) * 1986-05-30 1987-12-08 松下電器産業株式会社 Porcelain compound for voltage nonlinear resistance unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625606A (en) * 1985-07-02 1987-01-12 松下電器産業株式会社 Voltage depending non-linear resistor ceramic composition
JPS6243107A (en) * 1985-08-21 1987-02-25 太陽誘電株式会社 Ceramic composition for varistor
JPS62252904A (en) * 1986-04-25 1987-11-04 松下電器産業株式会社 Porcelain compound for voltage nonlinear resistance unit andmanufacture of the same
JPS62282412A (en) * 1986-05-30 1987-12-08 松下電器産業株式会社 Porcelain compound for voltage nonlinear resistance unit

Also Published As

Publication number Publication date
JP2638599B2 (en) 1997-08-06

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