SE513674C2 - Terminal för telegraf och telefon - Google Patents

Terminal för telegraf och telefon

Info

Publication number
SE513674C2
SE513674C2 SE9200766A SE9200766A SE513674C2 SE 513674 C2 SE513674 C2 SE 513674C2 SE 9200766 A SE9200766 A SE 9200766A SE 9200766 A SE9200766 A SE 9200766A SE 513674 C2 SE513674 C2 SE 513674C2
Authority
SE
Sweden
Prior art keywords
ptc element
terminal
telegraph
overvoltage
temperature coefficient
Prior art date
Application number
SE9200766A
Other languages
English (en)
Swedish (sv)
Other versions
SE9200766L (sv
SE9200766D0 (sv
Inventor
Kenji Takakura
Katsuyuki Uchida
Original Assignee
Murata Manufacturing 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
Application filed by Murata Manufacturing Co filed Critical Murata Manufacturing Co
Publication of SE9200766D0 publication Critical patent/SE9200766D0/xx
Publication of SE9200766L publication Critical patent/SE9200766L/
Publication of SE513674C2 publication Critical patent/SE513674C2/sv

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
    • H01C7/02—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 positive temperature coefficient
    • 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
    • H01C7/13—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 current responsive

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Ceramic Engineering (AREA)
  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Devices For Supply Of Signal Current (AREA)
SE9200766A 1991-03-13 1992-03-12 Terminal för telegraf och telefon SE513674C2 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1991014382U JPH04111701U (ja) 1991-03-13 1991-03-13 電信電話用端末装置

Publications (3)

Publication Number Publication Date
SE9200766D0 SE9200766D0 (sv) 1992-03-12
SE9200766L SE9200766L (sv) 1992-09-14
SE513674C2 true SE513674C2 (sv) 2000-10-16

Family

ID=11859499

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9200766A SE513674C2 (sv) 1991-03-13 1992-03-12 Terminal för telegraf och telefon

Country Status (4)

Country Link
US (1) US5315652A (ja)
JP (2) JPH04111701U (ja)
GB (1) GB2253741B (ja)
SE (1) SE513674C2 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH076902A (ja) * 1991-03-13 1995-01-10 Murata Mfg Co Ltd 正特性サーミスタ素子
EP0640995B1 (de) * 1993-08-25 1997-06-25 Abb Research Ltd. Elektrisches Widerstandselement und Verwendung dieses Widerstandselementes in einem Strombegrenzer
US6510032B1 (en) * 2000-03-24 2003-01-21 Littelfuse, Inc. Integrated overcurrent and overvoltage apparatus for use in the protection of telecommunication circuits

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL165020C (nl) * 1974-12-16 1981-02-16 Philips Nv Kleurentelevisie-ontvanger bevattende een ontmagneti- seerschakeling en samengesteld thermistorelement voor toepassing in een dergelijke schakeling.
JPS5398095A (en) * 1977-02-08 1978-08-26 Matsushita Electric Ind Co Ltd Barium titanate semiconductor ceramics
JPS56169301A (en) * 1980-06-02 1981-12-26 Tohoku Metal Ind Ltd Method of producing barium titanate semiconductor porcelain
JPS57106002A (en) * 1980-12-23 1982-07-01 Murata Manufacturing Co Positive temperature coefficient thermistor
JPS57157502A (en) * 1981-03-24 1982-09-29 Murata Manufacturing Co Barium titanate series porcelain composition
JPS588121A (ja) * 1981-07-09 1983-01-18 Kuraray Co Ltd 混合紡糸繊維およびその製造方法
DE3207015C2 (de) * 1982-02-26 1991-12-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Heizvorrichtung für wenigstens zwei Heiztemperaturstufen mit wenigstens zwei einzelnen PTC-Heizelementen
JPS5918535U (ja) * 1982-07-27 1984-02-04 株式会社村田製作所 電話保安装置等の保護素子構造
JPS62162307A (ja) * 1986-01-10 1987-07-18 株式会社村田製作所 正特性サ−ミスタ
JPS646007U (ja) * 1987-06-30 1989-01-13
US4937435A (en) * 1987-12-14 1990-06-26 Thermon Manufacturing Company Flexible electric heating pad using PTC ceramic thermistor chip heating elements
NL8800853A (nl) * 1988-04-05 1989-11-01 Philips Nv Chipweerstand en werkwijze voor het vervaardigen van een chipweerstand.
JP2675344B2 (ja) * 1988-08-25 1997-11-12 テルモ株式会社 測温用プローブ

Also Published As

Publication number Publication date
SE9200766L (sv) 1992-09-14
GB2253741A (en) 1992-09-16
JPH06295802A (ja) 1994-10-21
JPH04111701U (ja) 1992-09-29
GB9205553D0 (en) 1992-04-29
SE9200766D0 (sv) 1992-03-12
US5315652A (en) 1994-05-24
JP2783150B2 (ja) 1998-08-06
GB2253741B (en) 1995-04-12

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Legal Events

Date Code Title Description
NUG Patent has lapsed