GB1381246A - Materials suitable for use as electrical resistance materials and resistors - Google Patents

Materials suitable for use as electrical resistance materials and resistors

Info

Publication number
GB1381246A
GB1381246A GB1005273A GB1005273A GB1381246A GB 1381246 A GB1381246 A GB 1381246A GB 1005273 A GB1005273 A GB 1005273A GB 1005273 A GB1005273 A GB 1005273A GB 1381246 A GB1381246 A GB 1381246A
Authority
GB
United Kingdom
Prior art keywords
mol
per cent
materials
resistors
electrical resistance
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
GB1005273A
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 JP47021811A external-priority patent/JPS5140946B2/ja
Priority claimed from JP47021806A external-priority patent/JPS5140941B2/ja
Priority claimed from JP47021810A external-priority patent/JPS5140945B2/ja
Priority claimed from JP47021812A external-priority patent/JPS5140947B2/ja
Priority claimed from JP47021807A external-priority patent/JPS5140942B2/ja
Priority claimed from JP47021809A external-priority patent/JPS5140944B2/ja
Priority claimed from JP47021808A external-priority patent/JPS5140943B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1381246A publication Critical patent/GB1381246A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/16—Series resistor structurally associated with spark gap
    • 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

1381246 Doped zinc oxide MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 1 March 1973 [1 March 1972 (7)] 10052/73 Headings C1A and C1J [Also in Division H1] A varistor material consists of a sintered body of ZnO containing as additives 0À1-3À0 mol. per cent of Bi 2 O 3 , 0À05-3À0 mol. per cent of Sb 2 O 3 and 0À1-3À0 mol. per cent of MnF 2 . The examples given in the Specification include as further additives (i) 0À1-3À0 mol. per cent of CaO or 0À1-3À0 mol. per cent of MnO; or (ii) 0À1-3À0 mol. per cent of CoO, 0À1-3À0 mol. per cent of MnO, and one member of the group consisting of (a) 0À05-3À0 mol. per cent of Cr 2 O 3 , (b) 0À1-3À0 mol. per cent of SnO 2 , (c) 0À1- 10-0 mol. per cent of SiO 2 and (d) 0À05-3À0 mol. per cent of Cr 2 O 3 and 0À1-10À0 mol. per cent of SiO 2 .
GB1005273A 1972-03-01 1973-03-01 Materials suitable for use as electrical resistance materials and resistors Expired GB1381246A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP47021811A JPS5140946B2 (en) 1972-03-01 1972-03-01
JP47021806A JPS5140941B2 (en) 1972-03-01 1972-03-01
JP47021810A JPS5140945B2 (en) 1972-03-01 1972-03-01
JP47021812A JPS5140947B2 (en) 1972-03-01 1972-03-01
JP47021807A JPS5140942B2 (en) 1972-03-01 1972-03-01
JP47021809A JPS5140944B2 (en) 1972-03-01 1972-03-01
JP47021808A JPS5140943B2 (en) 1972-03-01 1972-03-01

Publications (1)

Publication Number Publication Date
GB1381246A true GB1381246A (en) 1975-01-22

Family

ID=27563955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1005273A Expired GB1381246A (en) 1972-03-01 1973-03-01 Materials suitable for use as electrical resistance materials and resistors

Country Status (6)

Country Link
US (1) US3806765A (en)
CA (1) CA968066A (en)
FR (1) FR2174176B1 (en)
GB (1) GB1381246A (en)
IT (1) IT977552B (en)
NL (1) NL169651C (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2345753C3 (en) * 1972-09-11 1978-03-09 Tokyo Shibaura Electric Co., Ltd., Kawasaki, Kanagawa (Japan) Metal oxide varistor
JPS50131095A (en) * 1974-04-05 1975-10-16
US4035693A (en) * 1974-07-02 1977-07-12 Siemens Aktiengesellschaft Surge voltage arrester with spark gaps and voltage-dependent resistors
JPS6013254B2 (en) * 1976-09-30 1985-04-05 株式会社東芝 DC or disconnector
US4161012A (en) * 1977-03-02 1979-07-10 Joslyn Mfg. And Supply Co. High voltage protection apparatus
US4219862A (en) * 1977-06-22 1980-08-26 Mitsubishi Denki Kabushiki Kaisha Lightning arrester device
US4234902A (en) * 1977-10-07 1980-11-18 Mitsubishi Denki Kabushiki Kaisha Enclosed lightning arrester
NL7800355A (en) * 1978-01-12 1979-07-16 Philips Nv RESISTANCE MATERIAL.
JPS54124242A (en) * 1978-03-18 1979-09-27 Mitsubishi Electric Corp Arrester for transmission line
JPS5915443Y2 (en) * 1978-03-18 1984-05-08 三菱電機株式会社 Lightning arrester
JPS5595284A (en) * 1979-01-11 1980-07-19 Mitsubishi Electric Corp Arrester for transmission line
US4352139A (en) * 1980-02-04 1982-09-28 Rte Corporation Flexible connector for H.V. arrester
CA1162977A (en) * 1981-05-29 1984-02-28 Philip Chadwick Thyristor-switched capacitor apparatus
DE3508030A1 (en) * 1985-02-07 1986-08-07 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Process for producing a surge arrestor using an active resistor core made from a voltage-dependent resistance material based on ZnO, and surge arrestor manufactured according to the process
DE19701243A1 (en) * 1997-01-16 1998-07-23 Asea Brown Boveri Column-shaped, high-current-resistant resistor, in particular varistor based on a metal oxide, and method for producing such a resistor
FR2881134B1 (en) 2005-01-24 2007-04-20 Areva T & D Sa PROCESS FOR THE PREPARATION OF SEMICONDUCTOR CERAMICS CONSISTING OF OXIDES OF METALS, IN PARTICULAR TIN OXIDE, PARTICULARLY FOR VARISTANCES
EA025064B1 (en) * 2013-06-26 2016-11-30 Открытое Акционерное Общество "Нпо "Стример" Apparatus for lightning protection and electric power line provided with such an apparatus
CN115136260A (en) * 2019-12-20 2022-09-30 豪倍公司 Metal oxide varistor formula

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA831691A (en) * 1967-10-09 1970-01-06 Matsuoka Michio Non-linear resistors of bulk type
US3515947A (en) * 1968-02-29 1970-06-02 Gen Electric Inclined arc chamber for a spark gap
JPS4840790B1 (en) * 1969-05-02 1973-12-03
US3693053A (en) * 1971-10-29 1972-09-19 Gen Electric Metal oxide varistor polyphase transient voltage suppression

Also Published As

Publication number Publication date
NL169651B (en) 1982-03-01
FR2174176B1 (en) 1984-03-30
NL169651C (en) 1982-08-02
IT977552B (en) 1974-09-20
FR2174176A1 (en) 1973-10-12
US3806765A (en) 1974-04-23
NL7302903A (en) 1973-09-04
CA968066A (en) 1975-05-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930228