GB1358482A - Voltage-dependent resistors - Google Patents

Voltage-dependent resistors

Info

Publication number
GB1358482A
GB1358482A GB1508772A GB1508772A GB1358482A GB 1358482 A GB1358482 A GB 1358482A GB 1508772 A GB1508772 A GB 1508772A GB 1508772 A GB1508772 A GB 1508772A GB 1358482 A GB1358482 A GB 1358482A
Authority
GB
United Kingdom
Prior art keywords
per cent
mole per
sintered
voltage
dependent resistors
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
GB1508772A
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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to GB1508772A priority Critical patent/GB1358482A/en
Publication of GB1358482A publication Critical patent/GB1358482A/en
Priority to HK6877A priority patent/HK6877A/en
Priority to MY7700153A priority patent/MY7700153A/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

Abstract

1358482 Zinc oxide varistors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 30 March 1972 15087/72 Headings C1A and C1J [Also in Division H1] A sintered body comprises a major proportion of ZnO, 0À05 to 20 mole per cent SiO 2 , and from 0À05 to 18 mole per cent in total of one or more of Bi 2 O 3 , CoO, MnO, BaO, SrO, PbO, Sb 2 O 3 , Cr 2 O 3 and NiO, each of the latter oxides not being present in an amount of more than 10 mole per cent. In a preparation, the components may be mixed, dried, pressed in a mould, sintered in air af 1000‹ to 1450‹ C. for from 1 to 10 hours and then furnace cooled. The mixture may be preliminarily calcined at 700‹ to 1000‹ C. and pulverized. The examples illustrate the compositions of many sintered bodies and their properties as voltage resistors.
GB1508772A 1972-03-30 1972-03-30 Voltage-dependent resistors Expired GB1358482A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1508772A GB1358482A (en) 1972-03-30 1972-03-30 Voltage-dependent resistors
HK6877A HK6877A (en) 1972-03-30 1977-02-03 Voltage-dependent resistors
MY7700153A MY7700153A (en) 1972-03-30 1977-12-31 Voltage dependent resistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1508772A GB1358482A (en) 1972-03-30 1972-03-30 Voltage-dependent resistors

Publications (1)

Publication Number Publication Date
GB1358482A true GB1358482A (en) 1974-07-03

Family

ID=10052800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1508772A Expired GB1358482A (en) 1972-03-30 1972-03-30 Voltage-dependent resistors

Country Status (3)

Country Link
GB (1) GB1358482A (en)
HK (1) HK6877A (en)
MY (1) MY7700153A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484997A1 (en) * 1980-06-18 1981-12-24 Gen Electric COMPOSITION WITH ZINC OXIDE FOR VARISTANCE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484997A1 (en) * 1980-06-18 1981-12-24 Gen Electric COMPOSITION WITH ZINC OXIDE FOR VARISTANCE

Also Published As

Publication number Publication date
HK6877A (en) 1977-02-11
MY7700153A (en) 1977-12-31

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years