GB1279947A - Improvements relating to non-linear resistance elements - Google Patents

Improvements relating to non-linear resistance elements

Info

Publication number
GB1279947A
GB1279947A GB22844/71A GB2284471A GB1279947A GB 1279947 A GB1279947 A GB 1279947A GB 22844/71 A GB22844/71 A GB 22844/71A GB 2284471 A GB2284471 A GB 2284471A GB 1279947 A GB1279947 A GB 1279947A
Authority
GB
United Kingdom
Prior art keywords
mol
oxide
linear resistance
layers
resistance elements
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
GB22844/71A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1279947A publication Critical patent/GB1279947A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • 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
    • H01C7/115—Titanium dioxide- or titanate type

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

Abstract

1279947 Non-linear resistance PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [5 March 1970] 22844/71 Heading H1K A varistor has a sintered ceramic body consisting mainly of titanium dioxide and containing also 0À005-0À1 mol. bismuth oxide and 0À001-0À05 mol. antimony oxide per mol. of titanium dioxide. An oxide of lead, barium, strontium, or calcium may also be present at a quantity of up to 0À1 mol. per mol. of titanium oxide. The component oxides or precursors thereof are mixed together, pressed with an organic binder, and sintered in air for, in the examples, 5, 10, or 30 minutes at 1400‹ or 1490‹ C. Electrodes are formed by first layers of NiCr20 alloy and second layers of solder, and connecting leads are soldered to these.
GB22844/71A 1970-03-05 1971-04-19 Improvements relating to non-linear resistance elements Expired GB1279947A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7003118.A NL162232C (en) 1970-03-05 1970-03-05 NON-LINEAR RESISTANCE ELEMENT.

Publications (1)

Publication Number Publication Date
GB1279947A true GB1279947A (en) 1972-06-28

Family

ID=19809496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22844/71A Expired GB1279947A (en) 1970-03-05 1971-04-19 Improvements relating to non-linear resistance elements

Country Status (7)

Country Link
US (1) US3715701A (en)
JP (1) JPS52235B1 (en)
BE (1) BE763755A (en)
DE (1) DE2106498C3 (en)
FR (1) FR2084239A5 (en)
GB (1) GB1279947A (en)
NL (1) NL162232C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856567A (en) * 1972-08-04 1974-12-24 J Pitha Electrode for porous ceramic and method of making same
JPS5311075B2 (en) * 1973-02-09 1978-04-19
US4306214A (en) * 1978-08-08 1981-12-15 Tdk Electronics Co., Ltd. Non-linear resistance element, method for preparing same and noise suppressor therewith
DE8003393U1 (en) * 1979-02-09 1984-04-05 TDK Electronics Co., Ltd., Tokyo NON-LINEAR RESISTANCE ELEMENT

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885521A (en) * 1957-02-11 1959-05-05 Horizons Inc Non-linear electric resistor
US3299332A (en) * 1961-07-10 1967-01-17 Murata Manufacturing Co Semiconductive capacitor and the method of manufacturing the same
GB1209947A (en) * 1966-12-07 1970-10-21 Matsushita Electric Ind Co Ltd Semiconductive elements

Also Published As

Publication number Publication date
NL162232B (en) 1979-11-15
DE2106498C3 (en) 1981-09-17
US3715701A (en) 1973-02-06
BE763755A (en) 1971-09-03
DE2106498B2 (en) 1980-12-11
JPS52235B1 (en) 1977-01-06
FR2084239A5 (en) 1971-12-17
NL7003118A (en) 1971-09-07
DE2106498A1 (en) 1971-09-16
NL162232C (en) 1980-04-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee