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JPS6466904A - Positive temperature coefficient thermistor - Google Patents

Positive temperature coefficient thermistor

Info

Publication number
JPS6466904A
JPS6466904A JP22468287A JP22468287A JPS6466904A JP S6466904 A JPS6466904 A JP S6466904A JP 22468287 A JP22468287 A JP 22468287A JP 22468287 A JP22468287 A JP 22468287A JP S6466904 A JPS6466904 A JP S6466904A
Authority
JP
Japan
Prior art keywords
thermistor body
electrode
temperature coefficient
section
positive temperature
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.)
Pending
Application number
JP22468287A
Other languages
Japanese (ja)
Inventor
Yutaka Shimabara
Yasuyuki Naito
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP22468287A priority Critical patent/JPS6466904A/en
Publication of JPS6466904A publication Critical patent/JPS6466904A/en
Pending 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
    • H01C7/02—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
    • H01C7/021—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 formed as one or more layers or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/048—Fuse resistors
    • H01H2085/0483—Fuse resistors with temperature dependent resistor, e.g. thermistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

Abstract

PURPOSE:To prevent the flowing of excess currents through a circuit by forming a metallic section fusion-cut by overcurrents or at a high temperature in series with a current path from an external electrode to an internal electrode and on the surface of a laminated structure. CONSTITUTION:A positive temperature coefficient thermistor body 1 is formed by alternately laminating semiconductor ceramics 1a-1e composed of barium titanate, etc., and internal electrodes 2a-2d. In the internal electrodes 2a-2d, one ends of 2a and 2c are led out up to one end of the thermistor body 1, and one parts. 3, 4 are drawn out up to one side section of the thermistor body in the remainders 2a, 2d. The internal electrodes 2a, 2c are connected electrically to an external electrode 5a shaped at one end section of the thermistor body 1, and the remainders 2b, 2d are connected electrically to an external leading-out electrode 6 formed on the side circumferential section of the thermistor body 1. The external leading-out electrode 6 and an external electrode 5b shaped at the other end section of the thermistor body 1 are connected by a fuse 7 fusion-cut when overcurrents flow or the temperature of the body 1 is elevated. The fuse 7 is formed on the surface of the positive temperature coefficient thermistor body 1.
JP22468287A 1987-09-07 1987-09-07 Positive temperature coefficient thermistor Pending JPS6466904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22468287A JPS6466904A (en) 1987-09-07 1987-09-07 Positive temperature coefficient thermistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22468287A JPS6466904A (en) 1987-09-07 1987-09-07 Positive temperature coefficient thermistor

Publications (1)

Publication Number Publication Date
JPS6466904A true JPS6466904A (en) 1989-03-13

Family

ID=16817572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22468287A Pending JPS6466904A (en) 1987-09-07 1987-09-07 Positive temperature coefficient thermistor

Country Status (1)

Country Link
JP (1) JPS6466904A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995035577A3 (en) * 1994-06-22 1996-03-28 Littelfuse Inc Improved dual element circuit protection device
US5907272A (en) * 1996-01-22 1999-05-25 Littelfuse, Inc. Surface mountable electrical device comprising a PTC element and a fusible link
JP2009088031A (en) * 2007-09-27 2009-04-23 Mitsubishi Materials Corp Chip type thermistor and circuit board equipped therewith

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995035577A3 (en) * 1994-06-22 1996-03-28 Littelfuse Inc Improved dual element circuit protection device
US5907272A (en) * 1996-01-22 1999-05-25 Littelfuse, Inc. Surface mountable electrical device comprising a PTC element and a fusible link
JP2009088031A (en) * 2007-09-27 2009-04-23 Mitsubishi Materials Corp Chip type thermistor and circuit board equipped therewith

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