GB1366008A - Metal oxide varistor - Google Patents

Metal oxide varistor

Info

Publication number
GB1366008A
GB1366008A GB3280172A GB3280172A GB1366008A GB 1366008 A GB1366008 A GB 1366008A GB 3280172 A GB3280172 A GB 3280172A GB 3280172 A GB3280172 A GB 3280172A GB 1366008 A GB1366008 A GB 1366008A
Authority
GB
United Kingdom
Prior art keywords
varistor
electrodes
metal oxide
face
gap
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.)
Expired
Application number
GB3280172A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1366008A publication Critical patent/GB1366008A/en
Expired 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
    • H01C7/102—Varistor boundary, e.g. surface layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49087—Resistor making with envelope or housing

Abstract

1366008 Varistors GENERAL ELECTRIC CO 13 July 1972 [22 July 1971] 32801/72 Heading H1K A metal oxide varistor has two electrodes on one face separated by a gap defining the active part of the body. The body may be thick enough to be self-supporting or may be mounted on a glass, ceramic, or polymeric substrate. The varistor may comprise a coating on a ceramic substrate. In various embodiments one electrode extends over the edge of the body and across the second major face (Fig. 4), three electrodes definining two active gaps are formed on one major face (Fig. 6), and the gap is circular, star shaped, tapered and stepped (Figs. 9, 10, 11 and 12 respectively). Two electrodes on one face may be combined with a third electrode on the other face to define a low voltage and a high voltage varistor in the same body (Figs. 7 and 8). As shown, Fig. 13, a varistor 31 having electrodes 32, 35, and mounted on a support 36 is provided with terminals 134, 135 and the active gap is protected with a dielectric glass passivation 136. The device may be mounted within a hermetic housing of a device to be protected against overvoltages or may be provided with a coating 137 of plastic or glass. The varistor may be a sintered ceramic metal oxide, e.g. basically ZnO with other metal oxide additives. The electrodes may be deposited using a mask or an initial overall layer may be formed and selectively removed to form the gap.
GB3280172A 1971-07-22 1972-07-13 Metal oxide varistor Expired GB1366008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16500171A 1971-07-22 1971-07-22

Publications (1)

Publication Number Publication Date
GB1366008A true GB1366008A (en) 1974-09-04

Family

ID=22596985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3280172A Expired GB1366008A (en) 1971-07-22 1972-07-13 Metal oxide varistor

Country Status (7)

Country Link
US (1) US3768058A (en)
JP (1) JPS5434902B1 (en)
DE (1) DE2235783C2 (en)
FR (1) FR2146453B1 (en)
GB (1) GB1366008A (en)
IE (1) IE36427B1 (en)
SE (1) SE383794B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950013A (en) * 2017-12-20 2019-06-28 成都铁达电子股份有限公司 A kind of ceramic chip and piezoresistor
CN110400667A (en) * 2018-04-24 2019-11-01 成都铁达电子股份有限公司 A kind of low natural capacity piezoresistor
CN110400665A (en) * 2018-04-24 2019-11-01 成都铁达电子股份有限公司 A kind of low natural capacity piezoresistor of chip type
CN110400666A (en) * 2018-04-24 2019-11-01 成都铁达电子股份有限公司 Combined press sensitive resistor

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818411A (en) * 1971-10-13 1974-06-18 Gen Electric Metal oxide varistor with selectively positionable intermediate electrode
US3857174A (en) * 1973-09-27 1974-12-31 Gen Electric Method of making varistor with passivating coating
DE2528090C2 (en) * 1974-07-01 1985-06-05 General Electric Co., Schenectady, N.Y. Multiphase surge suppressor
US4069465A (en) * 1976-07-12 1978-01-17 Allen-Bradley Company Cylindrical varistor and method of making the same
US4064475A (en) * 1976-07-12 1977-12-20 Allen-Bradley Company Thick film varistor and method of making the same
DE2735484C2 (en) * 1977-08-05 1984-06-07 Siemens AG, 1000 Berlin und 8000 München Process for the production of thick film varistors with zinc oxide as the main component
DE8003393U1 (en) 1979-02-09 1984-04-05 TDK Electronics Co., Ltd., Tokyo NON-LINEAR RESISTANCE ELEMENT
US4371860A (en) * 1979-06-18 1983-02-01 General Electric Company Solderable varistor
FR2475791A1 (en) * 1980-02-12 1981-08-14 Thomson Csf NON-LINEAR CERAMIC RESISTANCE WITH LOW THRESHOLD VOLTAGE AND METHOD OF MANUFACTURING THE SAME
FR2504756A1 (en) * 1981-04-27 1982-10-29 Thomson Csf For thermal printer heating element - has varistor element with one part corresponding to current toward control transistor and other to re-looping between two current sources
DE3140802A1 (en) * 1981-10-14 1983-05-26 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Multi-electrode varistor
DE3231118C1 (en) * 1982-08-20 1983-11-03 Siemens AG, 1000 Berlin und 8000 München Combined circuit arrangement with varistor and method for its production
GB8418779D0 (en) * 1984-07-24 1984-08-30 Bowthorpe Emp Ltd Electrical surge protection
DE3445698A1 (en) * 1984-12-14 1986-06-26 C. Conradty Nürnberg GmbH & Co KG, 8505 Röthenbach CHIP VARISTOR AND METHOD FOR THE PRODUCTION THEREOF
US4785276A (en) * 1986-09-26 1988-11-15 General Electric Company Voltage multiplier varistor
US5699035A (en) * 1991-12-13 1997-12-16 Symetrix Corporation ZnO thin-film varistors and method of making the same
US5438473A (en) * 1993-09-30 1995-08-01 Allina; Edward F. Varistor connection and usage
US7375943B2 (en) * 2005-11-22 2008-05-20 Yung-Hao Lu Tri-phase surge protector and its manufacturing method
JP4577250B2 (en) * 2006-03-27 2010-11-10 Ｔｄｋ株式会社 Varistor and light emitting device
JP5163228B2 (en) * 2008-03-28 2013-03-13 Ｔｄｋ株式会社 Barista
US9356089B1 (en) 2015-02-26 2016-05-31 International Business Machines Corporation Low temperature fabrication of lateral thin film varistor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701380C (en) * 1937-12-19 1942-05-30 Siemens & Halske Akt Ges Procedure for balancing resistances
US2887632A (en) * 1952-04-16 1959-05-19 Timefax Corp Zinc oxide semiconductors and methods of manufacture
US3271591A (en) * 1963-09-20 1966-09-06 Energy Conversion Devices Inc Symmetrical current controlling device
JPS411170Y1 (en) * 1964-09-28 1966-02-01
CA831691A (en) * 1967-10-09 1970-01-06 Matsuoka Michio Non-linear resistors of bulk type

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950013A (en) * 2017-12-20 2019-06-28 成都铁达电子股份有限公司 A kind of ceramic chip and piezoresistor
CN109950013B (en) * 2017-12-20 2021-02-09 成都铁达电子股份有限公司 Ceramic chip and piezoresistor
CN110400667A (en) * 2018-04-24 2019-11-01 成都铁达电子股份有限公司 A kind of low natural capacity piezoresistor
CN110400665A (en) * 2018-04-24 2019-11-01 成都铁达电子股份有限公司 A kind of low natural capacity piezoresistor of chip type
CN110400666A (en) * 2018-04-24 2019-11-01 成都铁达电子股份有限公司 Combined press sensitive resistor
CN110400667B (en) * 2018-04-24 2021-07-13 成都铁达电子股份有限公司 Low-inherent-capacitance piezoresistor
CN110400666B (en) * 2018-04-24 2021-07-20 成都铁达电子股份有限公司 Combined voltage dependent resistor
CN110400665B (en) * 2018-04-24 2021-09-28 成都铁达电子股份有限公司 Chip type low inherent capacitance piezoresistor

Also Published As

Publication number Publication date
DE2235783C2 (en) 1983-02-17
JPS5434902B1 (en) 1979-10-30
SE383794B (en) 1976-03-29
DE2235783A1 (en) 1973-02-08
IE36427L (en) 1973-01-22
FR2146453B1 (en) 1978-06-30
US3768058A (en) 1973-10-23
IE36427B1 (en) 1976-10-27
FR2146453A1 (en) 1973-03-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee