GB1427850A - Fixed resistors - Google Patents

Fixed resistors

Info

Publication number
GB1427850A
GB1427850A GB194574A GB194574A GB1427850A GB 1427850 A GB1427850 A GB 1427850A GB 194574 A GB194574 A GB 194574A GB 194574 A GB194574 A GB 194574A GB 1427850 A GB1427850 A GB 1427850A
Authority
GB
United Kingdom
Prior art keywords
layer
end layers
solder
resistor
wires
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
GB194574A
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 GB1427850A publication Critical patent/GB1427850A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/144—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals or tapping points being welded or soldered

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Details Of Resistors (AREA)
  • Non-Adjustable Resistors (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

1427850 Resistors ALLEN-BRADLEY CO 16 Jan 1974 [4 April 1973] 01945/74 Heading H1S A resistor comprises an insulating cylindrical core 3, e.g. of alumina, with a resistance layer 2 of cermet material and conductive end layers 5 which preferably comprise a silver, palladium and glass mix. Connecting wires 7 each comprise a shank 10, which is coated with a low melting-point solder, e.g. 60% lead, 40% tin, for connection to external circuitry, and a collar 9 and a knurled head portion 8 which are initially coated with a second higher melting- point solder, e.g. 90% lead, 10% tin, which is used to connect wires 7 to end layers 5. In a first embodiment, Fig. 1, the end layers 5 are applied first and the cerment layer 2 is then fired on. The value of the resistance is then adjusted by cutting a helical groove in the layer 2 and a layer of glaze 6 may then be provided. The wires 7 are then positioned and soldered on by mounting the resistor between two arms of a jig (15, Fig. 4, not shown) and heating the second solder with heat lamps (20), the shanks 10 being kept relatively cool to prevent melting of the first solder. A coating 23 of copolymerized epoxy resin and phenolic resin is then applied. In a second embodiment, Fig. 7 (not shown), the cermet layer is applied before the end layers 5, which may contain no palladium. In addition to a copolymerized resin coating, this resistor has an outer epoxy jacket 31.
GB194574A 1973-04-04 1974-01-16 Fixed resistors Expired GB1427850A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00347883A US3808575A (en) 1973-04-04 1973-04-04 Cermet fixed resistor with soldered leads

Publications (1)

Publication Number Publication Date
GB1427850A true GB1427850A (en) 1976-03-10

Family

ID=23365694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB194574A Expired GB1427850A (en) 1973-04-04 1974-01-16 Fixed resistors

Country Status (6)

Country Link
US (1) US3808575A (en)
JP (1) JPS551681B2 (en)
CA (1) CA990818A (en)
FR (1) FR2224846B1 (en)
GB (1) GB1427850A (en)
IT (1) IT1005361B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064475A (en) * 1976-07-12 1977-12-20 Allen-Bradley Company Thick film varistor and method of making the same
US4069465A (en) * 1976-07-12 1978-01-17 Allen-Bradley Company Cylindrical varistor and method of making the same
GB8321028D0 (en) * 1983-08-04 1983-09-07 Atomic Energy Authority Uk Resistance heaters
JPS61276329A (en) * 1985-05-31 1986-12-06 Mitsubishi Electric Corp Semiconductor manufacturing equipment
JPS6342375A (en) * 1986-08-07 1988-02-23 Kyushu Denshi Kinzoku Kk Vapor growth device
JP2585430B2 (en) * 1989-06-29 1997-02-26 日本碍子株式会社 Detection element and method of manufacturing the same
US5247158A (en) * 1992-07-17 1993-09-21 Watlow Electric Manufacturing Company Electrical heater
JPH06236819A (en) * 1993-01-11 1994-08-23 Boam R & D Co Ltd Ferrite magnetic material chip bead structure and its preparation
JPH06310302A (en) * 1993-04-21 1994-11-04 Koa Corp Resistor provided with lead wire and its manufacture
DE20104549U1 (en) * 2001-03-16 2001-05-23 AEG Elektrofotografie GmbH, 59581 Warstein Photoconductor drum
JP2009538510A (en) * 2006-05-24 2009-11-05 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Method for producing external electrode fluorescent lamp, thick film electrode composition used therefor, lamp produced therefrom and LCD device
KR101064342B1 (en) * 2011-05-19 2011-09-14 (주)옴니엘피에스 A graphite carbon grounding module and the method of the same
JP2016152301A (en) * 2015-02-17 2016-08-22 ローム株式会社 Chip resistor and manufacturing method thereof
CN110277209B (en) * 2018-03-14 2021-06-29 国巨电子（中国）有限公司 Method for manufacturing shunt resistor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455136A (en) * 1943-12-31 1948-11-30 Rca Corp Method of securing leads to electrical capacitors
DE965703C (en) * 1950-03-16 1957-06-13 Steatit Magnesia Ag Electrical resistance
US2997979A (en) * 1958-09-15 1961-08-29 Tassara Luigi Apparatus for applying metallic film to electrical components and the like
NL262699A (en) * 1960-03-23
US3616981A (en) * 1969-08-08 1971-11-02 Erie Technological Prod Inc Lead and solder preform assembly and method of making the same

Also Published As

Publication number Publication date
JPS50349A (en) 1975-01-06
DE2403596A1 (en) 1974-10-17
US3808575A (en) 1974-04-30
JPS551681B2 (en) 1980-01-16
DE2403596B2 (en) 1976-12-16
IT1005361B (en) 1976-08-20
CA990818A (en) 1976-06-08
FR2224846B1 (en) 1977-09-16
FR2224846A1 (en) 1974-10-31

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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