GB1480817A - Oxide ceramic resistor - Google Patents

Oxide ceramic resistor

Info

Publication number
GB1480817A
GB1480817A GB41846/74A GB4184674A GB1480817A GB 1480817 A GB1480817 A GB 1480817A GB 41846/74 A GB41846/74 A GB 41846/74A GB 4184674 A GB4184674 A GB 4184674A GB 1480817 A GB1480817 A GB 1480817A
Authority
GB
United Kingdom
Prior art keywords
resistor
oxide ceramic
ceramic resistor
sept
mno
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
GB41846/74A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1480817A publication Critical patent/GB1480817A/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
    • H01C7/04—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 having negative temperature coefficient
    • H01C7/042—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 having negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds
    • H01C7/046—Iron oxides or ferrites

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Thermistors And Varistors (AREA)

Abstract

1480817 NTC resistors ROBERT BOSCH GmbH 26 Sept 1974 [27 Sept 1973] 41846/74 Heading H1K An NTC oxide ceramic resistor for use above 400 ‹ C. comprises Fe 2 O 3 , Al 2 O 3 and MnO such that the resistor contains 30-100% by weight of Fe 2 O 3 , and the MnO concentration is proportional to the Fe 2 O 3 concentration raised to the power 1À6, with the proportionality constant being between 0À3 to 12. Methods of preparing the resistor are described and include grinding the oxides, followed by calcining, grinding,. binding with alcohol, pressing and sintering Au, Ag or Pt contacts may be soldered or welded to the resistance body, or Pt wires may be sintered into the body.
GB41846/74A 1973-09-27 1974-09-26 Oxide ceramic resistor Expired GB1480817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2348589A DE2348589C2 (en) 1973-09-27 1973-09-27 Oxide ceramic resistor

Publications (1)

Publication Number Publication Date
GB1480817A true GB1480817A (en) 1977-07-27

Family

ID=5893807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41846/74A Expired GB1480817A (en) 1973-09-27 1974-09-26 Oxide ceramic resistor

Country Status (12)

Country Link
US (1) US3928837A (en)
JP (1) JPS5060795A (en)
AU (1) AU7375074A (en)
BE (1) BE820395A (en)
BR (1) BR7408013D0 (en)
CH (1) CH598680A5 (en)
DE (1) DE2348589C2 (en)
FR (1) FR2246031B3 (en)
GB (1) GB1480817A (en)
IT (1) IT1022270B (en)
NL (1) NL7412718A (en)
SE (1) SE394761B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51115879A (en) * 1975-04-04 1976-10-12 Hitachi Ltd Temperatore detecter
US4531110A (en) * 1981-09-14 1985-07-23 At&T Bell Laboratories Negative temperature coefficient thermistors
US4503418A (en) * 1983-11-07 1985-03-05 Northern Telecom Limited Thick film resistor
GB8704469D0 (en) * 1987-02-25 1987-04-01 Thorn Emi Appliances Thick film electrically resistive tracks
US4929092A (en) * 1987-06-12 1990-05-29 Mitsubishi Jukogyo Kabushiki Kaisha Resistance temperature detector
ES2130112T3 (en) * 1988-10-07 1999-07-01 Fujikura Ltd FLAT RESISTOR FOR A VEHICLE AIR CONDITIONER BLOWER CONTROL UNIT AND A CONTROL UNIT USED.
KR960008921B1 (en) * 1991-08-08 1996-07-09 Tech K K Fixing apparatus
US5254968A (en) * 1992-06-15 1993-10-19 General Motors Corporation Electrically conductive plastic speed control resistor for an automotive blower motor
US5521576A (en) * 1993-10-06 1996-05-28 Collins; Franklyn M. Fine-line thick film resistors and resistor networks and method of making same
US5605715A (en) * 1993-12-09 1997-02-25 The Erie Ceramic Arts Company Methods for making electrical circuit devices
US5929746A (en) * 1995-10-13 1999-07-27 International Resistive Company, Inc. Surface mounted thin film voltage divider
US6859024B2 (en) * 2001-05-08 2005-02-22 Telstra New Wave Pty Ltd. Device for detecting an electrically conductive particle
US7057491B2 (en) * 2002-09-23 2006-06-06 Analog Devices, Inc. Impedance network with minimum contact impedance
US7598841B2 (en) 2005-09-20 2009-10-06 Analog Devices, Inc. Film resistor and a method for forming and trimming a film resistor
CN103073267B (en) * 2012-12-26 2014-07-02 山东中厦电子科技有限公司 NTC (negative temperature coefficient) thermal-sensitive material with low resistivity and high B-value and preparation method thereof
US20150136754A1 (en) * 2013-11-05 2015-05-21 Keith Yester Wireless Heating System for Motorcycles
DE102014104219B4 (en) * 2014-03-26 2019-09-12 Heraeus Nexensos Gmbh Ceramic carrier and sensor element, heating element and sensor module each with a ceramic carrier and method for producing a ceramic carrier

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE631867C (en) * 1933-10-19 1936-06-27 Patra Patent Treuhand Resistance body with a high negative temperature coefficient of the electrical resistance
US2258646A (en) * 1939-05-17 1941-10-14 Bell Telephone Labor Inc Resistance material
DE976937C (en) * 1943-06-26 1964-08-20 Siemens Ag Process for the production of a sintered electrical resistance body
US2616859A (en) * 1945-03-16 1952-11-04 Hartford Nat Bank & Trust Co Electrical resistor
US2674583A (en) * 1949-12-23 1954-04-06 Bell Telephone Labor Inc High temperature coefficient resistors and methods of making them
US2626445A (en) * 1950-06-07 1953-01-27 Steatite Res Corp Heavy-metal oxide resistors and process of making same
US2720573A (en) * 1951-06-27 1955-10-11 Dick O R Lundqvist Thermistor disks
US3359632A (en) * 1965-02-10 1967-12-26 Victory Engineering Corp Method of making a thermistor
NL6614015A (en) * 1966-10-05 1968-04-08
US3477055A (en) * 1967-12-22 1969-11-04 Gen Motors Corp Thermistor construction

Also Published As

Publication number Publication date
AU7375074A (en) 1976-04-01
JPS5060795A (en) 1975-05-24
SE7412125L (en) 1975-04-01
DE2348589A1 (en) 1975-04-03
BR7408013D0 (en) 1975-07-15
DE2348589C2 (en) 1982-04-01
IT1022270B (en) 1978-03-20
FR2246031A1 (en) 1975-04-25
CH598680A5 (en) 1978-05-12
BE820395A (en) 1975-01-16
FR2246031B3 (en) 1976-03-12
SE394761B (en) 1977-07-04
NL7412718A (en) 1975-04-02
US3928837A (en) 1975-12-23

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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