BS 3363: BRITISH STANDARD Supplement 2: 1981 IEC 148B:1979 Specification for Letter symbols for semiconductor devices and integrated microcircuits - Supplement 2 UDC 621.382:003.62 + 621.3.049.77:003.62 BSi NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAW BS 3363:Supplement 2:1981 Cooperating organizations The Electronic Components Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: BritishElectrical andAllied Manufacturers'Association (BEAMA) Electronic Components Industry Federation* Electronic Engineering Association* Electricity Supply Industry in England and Wales Institution of Electronic and Radio Engineers Ministry of Defence* National Supervising Inspectorate* Post Office* Society of British Aerospace Companies Limited Telecommunications Engineering and Manufacturing Association (TEMA)* The organizations marked with an asterisk in the above list, together with the following, were directly represented on the Technical Committee entrusted with the preparation of this British Standard: British Broadcasting Corporation Engineering Equipment Users' Association This British Standard, having been prepared under the direction of the Electronic Components Standards Copy: Committee, was published under the authority of the Executive Board and comes Amendments issued since publication into effect on Licensed 30January1981 Date of issue Amd. No. Comments CBSI12-1999 The following BSI references relate to the work on this standard: Committee reference ECL/12 Draft for comment 80/24846 DC ISBN 0 580 11870 3 BS 3363:Supplement 2:1981 Contents Page ) BSI Cooperating organizations Inside front cover National foreword ii Chapter I. General Sundry quantities 1 6.5 Chapter II. Letter symbols for bipolar transistors 3.4.2 Small-signal parameters 1 2 3.5 Frequency parameters 3.9 Matched-pair bipolar transistors 2 Chapter III. Letter symbols for low-power signal diodes Voltages 3.1 2 3.3 Powers 2 3.5 Sundry quantities 3 Chapter IV. Letter symbols for voltage reference and voltage regulator diodes 3.3 Sundry quantities 3 Chapter VII. Letter symbols for rectifier diodes 3.1 Voltages 3 3.2 Currents 3 3.3 Powers 3 Chapter VII. Letter symbols for thyristors 3.2 Principal currents 4 3.5 Time quantities 4 3.6 Sundry quantities 4 3.7 Powers 4 Chapter IX. Letter symbols for field-effect transistors 3.7 Matched-pair field-effect transistors 5 Chapter X. Letter symbols for digital integrated microcircuits 2.2.3 5 Other subscripts Sundry functions 5 8 Chapter XI. Letter symbols for analogue integrated microcircuits Voltages and currents 5 1 Sundry quantities 6 4 Chapter XII. Letter symbols for mixer diodes 3.2 Other parameters 6 Chapter XIII. Letter symbols for current-regulator diodes 1 Voltages 6 Currents 6 3 Sundry quantities 6 CBSI 12-1999 1