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GB1474095A - Resistors - Google Patents

Resistors

Info

Publication number
GB1474095A
GB1474095A GB3881374A GB3881374A GB1474095A GB 1474095 A GB1474095 A GB 1474095A GB 3881374 A GB3881374 A GB 3881374A GB 3881374 A GB3881374 A GB 3881374A GB 1474095 A GB1474095 A GB 1474095A
Authority
GB
United Kingdom
Prior art keywords
layer
fusible
resistor
film
resistive film
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
GB3881374A
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.)
Allen Bradley Co LLC
Original Assignee
Allen Bradley Co LLC
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 Allen Bradley Co LLC filed Critical Allen Bradley Co LLC
Publication of GB1474095A publication Critical patent/GB1474095A/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
    • H01C7/13—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/02—Manufacture of fuses
    • H01H69/022—Manufacture of fuses of printed circuit fuses
    • 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
    • H01H85/046—Fuses formed as printed circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuses (AREA)
  • Non-Adjustable Resistors (AREA)
  • Thermistors And Varistors (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

1474095 Fusible resistors ALLEN-BRADLEY CO 5 Sept 1974 [24 Sept 1973] 38813/74 Heading HIS [Also in Division H2] A resistor comprising an insulating substrate 3, e.g. of alumina, and a resistive film 5 deposited thereon has a fusible link 21 which provides electrical continuity between the ends of the resistor and comprises a metallic layer 12 which melts at a pre-selected temperature to open-circuit the resistor. When molten the fusible material preferably wets contacts 8, 9, see Fig. 5, at the edges of layer 12 rather than the surface of substrate 3, which may be flat or cylindrical. As described, a resistive film 5 of metal, carbon or cermet material is deposited on a core 3 and silver-glass contact bands (6, 7, 10, Fig. 2, not shown) are applied to the ends and centre of film 5. An insulating, e.g. resin, coating 13 is then applied, except over centre band 10, and band 10 is divided into the two contacts 8, 9 by removing material down to core 3, (Fig. 3, not shown). After applying a sensitizing material to the gap, fusible layer 12 is formed, for example electrolytically. Layer 12 comprises cadmium, silver, indium, tin, lead, zinc or a combination thereof. The value of the resistance is adjusted by forming a helical groove 14 in film 5, and an oxidation-inhibiting flux is coated over layer 12. Finally lead wires 2 and a further resin coating 18 are provided. An arrangement is envisaged in which seriallyconnected resistive film 5 and fusible link 21 are provided in thermal communication on opposite surfaces of an integrated circuit chip.
GB3881374A 1973-09-24 1974-09-05 Resistors Expired GB1474095A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US400236A US3887893A (en) 1973-09-24 1973-09-24 Fusible resistor

Publications (1)

Publication Number Publication Date
GB1474095A true GB1474095A (en) 1977-05-18

Family

ID=23582774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3881374A Expired GB1474095A (en) 1973-09-24 1974-09-05 Resistors

Country Status (7)

Country Link
US (1) US3887893A (en)
JP (1) JPS5059766A (en)
CA (1) CA1011882A (en)
DE (1) DE2444375A1 (en)
FR (1) FR2245076B3 (en)
GB (1) GB1474095A (en)
IT (1) IT1023751B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1466569A (en) * 1973-10-05 1977-03-09 Erie Electronics Ltd Resistors
US4006443A (en) * 1975-09-11 1977-02-01 Allen-Bradley Company Composition resistor with an integral thermal fuse
JPS5239162A (en) * 1975-09-23 1977-03-26 Jiyuichirou Ozawa Fuse resistor
US4034207A (en) * 1976-01-23 1977-07-05 Murata Manufacturing Co., Ltd. Positive temperature coefficient semiconductor heating element
IT1125202B (en) * 1976-05-06 1986-05-14 Wabco Westinghouse Spa INTRINSICALLY SAFE RESISTOR
JPS5540946Y2 (en) * 1976-06-21 1980-09-25
US4246563A (en) * 1977-05-28 1981-01-20 Aktieselkabet Laur. Knudsen Nordisk Electricitets Electric safety fuse
US4278706A (en) * 1977-12-15 1981-07-14 Trx, Inc. Method for making discrete electrical components
US4199745A (en) * 1977-12-15 1980-04-22 Trx, Inc. Discrete electrical components
JPS59185801U (en) * 1983-05-26 1984-12-10 アルプス電気株式会社 chip resistance
AT383697B (en) * 1983-09-15 1987-08-10 Wickmann Werke Gmbh PROTECTIVE DEVICE FOR INTERRUPTING A CIRCUIT OF ELECTRICAL DEVICES, MACHINES ETC.
JPH0831303B2 (en) * 1986-12-01 1996-03-27 オムロン株式会社 Chip type fuse
US5027101A (en) * 1987-01-22 1991-06-25 Morrill Jr Vaughan Sub-miniature fuse
US5155462A (en) * 1987-01-22 1992-10-13 Morrill Glasstek, Inc. Sub-miniature electrical component, particularly a fuse
US5040284A (en) * 1987-01-22 1991-08-20 Morrill Glasstek Method of making a sub-miniature electrical component, particularly a fuse
US5097245A (en) * 1987-01-22 1992-03-17 Morrill Glasstek, Inc. Sub-miniature electrical component, particularly a fuse
US5032817A (en) * 1987-01-22 1991-07-16 Morrill Glassteck, Inc. Sub-miniature electrical component, particularly a fuse
US5131137A (en) * 1987-01-22 1992-07-21 Morrill Glasstek, Inc. Method of making a sub-miniature electrical component particularly a fuse
US5224261A (en) * 1987-01-22 1993-07-06 Morrill Glasstek, Inc. Method of making a sub-miniature electrical component, particularly a fuse
US5122774A (en) * 1987-01-22 1992-06-16 Morrill Glasstek, Inc. Sub-miniature electrical component, particularly a fuse
JP2585430B2 (en) * 1989-06-29 1997-02-26 日本碍子株式会社 Detection element and method of manufacturing the same
US5148141A (en) * 1991-01-03 1992-09-15 Gould Inc. Fuse with thin film fusible element supported on a substrate
US5777540A (en) * 1996-01-29 1998-07-07 Cts Corporation Encapsulated fuse having a conductive polymer and non-cured deoxidant
DE102004033251B3 (en) 2004-07-08 2006-03-09 Vishay Bccomponents Beyschlag Gmbh Fuse for a chip
US7983024B2 (en) 2007-04-24 2011-07-19 Littelfuse, Inc. Fuse card system for automotive circuit protection
CN106847447B (en) * 2017-01-03 2018-09-21 常州安斯电子有限公司 A kind of chip resistance value safety resistor and its production technology

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1208448A (en) * 1914-02-26 1916-12-12 Gen Electric Electric cut-out.
US1255597A (en) * 1916-10-16 1918-02-05 Georges Giles Industrial electrical capacity-battery.
US2263752A (en) * 1939-04-26 1941-11-25 Babler Egon Electric circuit interupter
US2537959A (en) * 1945-07-18 1951-01-16 Sprague Electric Co Artificial transmission line
US2672542A (en) * 1952-02-02 1954-03-16 Milwaukee Resistor Company Fusible resistor
US2973418A (en) * 1958-10-07 1961-02-28 Bell Telephone Labor Inc Fuse-resistor
US3386063A (en) * 1960-10-03 1968-05-28 Gen Electric Temperature responsive fuses and apparatus embodying such fuses
US3423574A (en) * 1965-10-14 1969-01-21 Sanders Associates Inc Electrical resistance heating pad
US3441804A (en) * 1966-05-02 1969-04-29 Hughes Aircraft Co Thin-film resistors
US3766508A (en) * 1972-07-03 1973-10-16 Matsushita Electric Industrial Co Ltd Flame-proof coated resistors

Also Published As

Publication number Publication date
CA1011882A (en) 1977-06-07
IT1023751B (en) 1978-05-30
FR2245076A1 (en) 1975-04-18
US3887893A (en) 1975-06-03
DE2444375A1 (en) 1975-04-03
JPS5059766A (en) 1975-05-23
FR2245076B3 (en) 1977-07-01

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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