GB1562988A - Varistor - Google Patents

Varistor Download PDF

Info

Publication number
GB1562988A
GB1562988A GB3971076A GB3971076A GB1562988A GB 1562988 A GB1562988 A GB 1562988A GB 3971076 A GB3971076 A GB 3971076A GB 3971076 A GB3971076 A GB 3971076A GB 1562988 A GB1562988 A GB 1562988A
Authority
GB
United Kingdom
Prior art keywords
varistor
heat treatment
metal oxide
leakage current
bismuth oxide
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
GB3971076A
Other languages
English (en)
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
Priority claimed from US05/616,854 external-priority patent/US4042535A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1562988A publication Critical patent/GB1562988A/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
    • H01C7/105—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)
GB3971076A 1975-09-25 1976-09-24 Varistor Expired GB1562988A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61685575A 1975-09-25 1975-09-25
US05/616,854 US4042535A (en) 1975-09-25 1975-09-25 Metal oxide varistor with improved electrical properties

Publications (1)

Publication Number Publication Date
GB1562988A true GB1562988A (en) 1980-03-19

Family

ID=27087887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3971076A Expired GB1562988A (en) 1975-09-25 1976-09-24 Varistor

Country Status (5)

Country Link
JP (1) JPS5253295A (sv)
DE (1) DE2642567C3 (sv)
GB (1) GB1562988A (sv)
NL (1) NL181156C (sv)
SE (1) SE408674B (sv)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH596647A5 (sv) * 1976-07-01 1978-03-15 Bbc Brown Boveri & Cie
CH601135A5 (sv) * 1976-07-01 1978-06-30 Bbc Brown Boveri & Cie
DE2820118C2 (de) * 1977-06-23 1985-04-11 Kombinat Veb Keramische Werke Hermsdorf, Ddr 6530 Hermsdorf Oxid-Varistor und Verfahren zu dessen Herstellung
DE2921479A1 (de) * 1978-06-05 1979-12-06 Gen Electric Zinkoxid-varistor-zusammensetzung und verfahren zu deren herstellung
JPS54163395A (en) * 1978-06-14 1979-12-25 Fuji Electric Co Ltd Voltage nonlinear resistive porcelain
DD137867A1 (de) * 1978-07-20 1979-09-26 Guenter Weise Substrat fuer keramische halbleiterwiderstaende und herstellungsverfahren
DE2910841C2 (de) * 1979-03-20 1982-09-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spannungsabhängiger Widerstandskörper und Verfahren zu dessen Herstellung
EP0019889A1 (de) * 1979-05-30 1980-12-10 Siemens Aktiengesellschaft Zinkoxid-Varistor
JPS5827643B2 (ja) * 1979-07-13 1983-06-10 株式会社日立製作所 非直線抵抗体およびその製法
DD151388A1 (de) * 1980-06-10 1981-10-14 Baether Karl Heinz Verfahren zum herstellen keramischer halbleiterbauelemente
JPS57173906A (en) * 1981-04-20 1982-10-26 Hitachi Ltd Voltage nonlinear resistor
JPS5812306A (ja) * 1981-07-16 1983-01-24 株式会社東芝 酸化物電圧非直線抵抗体及びその製造方法
JPS59117203A (ja) * 1982-12-24 1984-07-06 株式会社東芝 電圧電流非直線抵抗体
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
DE3826282A1 (de) * 1988-07-29 1990-02-08 Siemens Ag Elektrische maschine oder apparat mit einer wicklung, die metalloxid-widerstaende zur ueberspannungsbegrenzung aufweist, und verfahren zu ihrer herstellung
DE19820134A1 (de) 1998-05-06 1999-11-11 Abb Research Ltd Varistor auf der Basis eines Metalloxids und Verfahren zur Herstellung eines solchen Varistors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442014A (en) * 1966-03-04 1969-05-06 Carborundum Co Method of stabilizing resistance in semiconductor manufacture
GB1267107A (sv) * 1969-11-25 1972-03-15
US3767597A (en) * 1970-07-15 1973-10-23 Matsushita Electric Ind Co Ltd High temperature thermistor composition
US3735321A (en) * 1971-06-18 1973-05-22 Gen Electric Thermistor
JPS5321509B2 (sv) * 1974-04-04 1978-07-03

Also Published As

Publication number Publication date
JPS5253295A (en) 1977-04-28
NL181156C (nl) 1987-06-16
DE2642567A1 (de) 1977-04-07
DE2642567B2 (de) 1981-06-19
DE2642567C3 (de) 1982-02-11
NL181156B (nl) 1987-01-16
SE7610624L (sv) 1977-03-26
NL7610118A (nl) 1977-03-29
SE408674B (sv) 1979-06-25

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee
PCPE Delete 'patent ceased' from journal

Free format text: 5176, PAGE 1305

PE20 Patent expired after termination of 20 years

Effective date: 19960923