FR2371754A1 - Varistance et son procede de fabrication - Google Patents

Varistance et son procede de fabrication

Info

Publication number
FR2371754A1
FR2371754A1 FR7734830A FR7734830A FR2371754A1 FR 2371754 A1 FR2371754 A1 FR 2371754A1 FR 7734830 A FR7734830 A FR 7734830A FR 7734830 A FR7734830 A FR 7734830A FR 2371754 A1 FR2371754 A1 FR 2371754A1
Authority
FR
France
Prior art keywords
zno
grains
varistance
manufacturing process
microns
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
FR7734830A
Other languages
English (en)
Other versions
FR2371754B1 (fr
Inventor
Kazuo Eda
Osamu Makino
Masanori Inada
Atsushi Iga
Masayuki Sakai
Michio Matsuoka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP13999576A external-priority patent/JPS5364752A/ja
Priority claimed from JP13999076A external-priority patent/JPS5364751A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of FR2371754A1 publication Critical patent/FR2371754A1/fr
Application granted granted Critical
Publication of FR2371754B1 publication Critical patent/FR2371754B1/fr
Granted 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
    • H01C7/112—ZnO type

Landscapes

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

Abstract

La présente invention concerne une varistance et son procédé de fabrication. Une telle varistance comprend un corps fritté 1 comprenant essentiellement du ZnO et des additifs. Au moins 10 % en poids du ZnO est constitué de grains de ZnO ayant une dimension de grains située dans la gamme de 50 à 500 microns. Ces grains sont obtenus à partir d'un mélange de départ comprenant des grains de ZnO ayant une dimension dans la gamme de 20 à 200 microns. Application à des varistances pouvant absorber de fortes surcharges et fonctionner à des températures allant jusqu'à 150 degrés C.
FR7734830A 1976-11-19 1977-11-18 Varistance et son procede de fabrication Granted FR2371754A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13999576A JPS5364752A (en) 1976-11-19 1976-11-19 Method of manufacturing voltage nonlinear resistor
JP13999076A JPS5364751A (en) 1976-11-19 1976-11-19 Method of manufacturing voltage nonlinear resistor

Publications (2)

Publication Number Publication Date
FR2371754A1 true FR2371754A1 (fr) 1978-06-16
FR2371754B1 FR2371754B1 (fr) 1981-12-11

Family

ID=26472640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734830A Granted FR2371754A1 (fr) 1976-11-19 1977-11-18 Varistance et son procede de fabrication

Country Status (6)

Country Link
AU (1) AU497337B2 (fr)
CA (1) CA1093701A (fr)
DE (1) DE2752150C2 (fr)
FR (1) FR2371754A1 (fr)
GB (1) GB1589940A (fr)
NL (1) NL174777C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098993A1 (fr) * 1982-07-14 1984-01-25 GTE Laboratories Incorporated Varistor céramique à voltage bas
FR2584389A1 (fr) * 1985-07-04 1987-01-09 Centre Nat Rech Scient Procede de preparation de particules d'oxyde de zinc, oxyde de zinc ainsi obtenu, et application aux varistances

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54163395A (en) * 1978-06-14 1979-12-25 Fuji Electric Co Ltd Voltage nonlinear resistive porcelain
DE2910841C2 (de) * 1979-03-20 1982-09-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spannungsabhängiger Widerstandskörper und Verfahren zu dessen Herstellung
GB2052856B (en) * 1979-06-18 1983-08-10 Gen Electric Coating protecting varistor during manufacture
DE3036617C2 (de) * 1980-09-29 1982-06-24 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Herstellung des Keramikmaterials für Zinkoxid-Varistoren
JPS61216305A (ja) * 1985-03-20 1986-09-26 富士電機株式会社 電圧非直線抵抗体
JPH0630284B2 (ja) * 1987-09-11 1994-04-20 富士電機株式会社 電圧非直線抵抗素子の製造方法
DE19824104B4 (de) * 1998-04-27 2009-12-24 Abb Research Ltd. Nichtlinearer Widerstand mit Varistorverhalten
CN115662719B (zh) * 2022-12-29 2023-03-17 西北工业大学 一种无铅厚膜电阻浆料及制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048986B (de) * 1954-04-14 1959-01-22 Siemens Ag Verfahren zur Herstellung von aus koernigem Siliziumkarbid bestehenden Halbleiterwiderstaenden
JPS5524247B2 (fr) * 1973-10-19 1980-06-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098993A1 (fr) * 1982-07-14 1984-01-25 GTE Laboratories Incorporated Varistor céramique à voltage bas
FR2584389A1 (fr) * 1985-07-04 1987-01-09 Centre Nat Rech Scient Procede de preparation de particules d'oxyde de zinc, oxyde de zinc ainsi obtenu, et application aux varistances

Also Published As

Publication number Publication date
NL174777B (nl) 1984-03-01
NL7712757A (nl) 1978-05-23
GB1589940A (en) 1981-05-20
AU497337B2 (en) 1978-12-07
FR2371754B1 (fr) 1981-12-11
NL174777C (nl) 1984-08-01
DE2752150C2 (de) 1983-05-11
DE2752150A1 (de) 1978-06-01
CA1093701A (fr) 1981-01-13

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