BS 3363: BRITISH STANDARD Supplement 1: 1981 IEC 148A: 1974 Specification for Letter symbols for semiconductor devices and integrated microcircuits - Supplement 1 UDC 003.62:621.382 BSi BS 3363:Supplement 1:1981 Cooperating organizations The Electronic Components Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: British Electrical and Allied 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 into effect on Amendments issued since publication nsed 31 December 1980 Amd. No. Date of issue Comments Licen C BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference ECL/12 Draft for comment 80/21611 DC ISBN 0 580 11768 5 BS 3363:Supplement 1:1981 Contents Page Cooperating organizations Inside front cover National foreword ii Chapter II. Letter symbols for bipolar transistors 1 3.4.2 Small-signal parameters Switching parameters 3.6 1 Sundry quantities 3.7 1 Chapter IV. Letter symbols for voltage reference and voltage regulator diodes 1 Letter symbols for currents, voltages and powers 1 2 Letter symbols for electrical parameters 2 3 List of letter symbols 2 Chapter VI. Letter symbols for variable capacitance diodes 1 Letter symbols for currents, voltages and powers 2 2 Letter symbols for electrical parameters 2 3 List of letter symbols 3 Chapter IX. Letter symbols for field-effect transistors Subscripts 3 1.2 2 Letter symbols for electrical parameters 3 List of letter symbols 3 3 Chapter X. Letter symbols for digital integrated microcircuits 9 1 Letter symbols for currents and voltages 10 2 Letter symbols for switching times Chapter XI. Letter symbols for analogue integrated microcircuits 11 List of letter symbols Chapter XII. Letter symbols for mixer diodes Section 1. Radar applications 1 Letter symbols for currents, voltages and powers 13 13 2 Letter symbols for electrical parameters 3 List of letter symbols 13 Figure 1 3 Figure 2 7 Figure 3 7 7 Figure 4 Figure 5 8 Figure 6 Examples showing the use of subscripts "A" and “"B" 10 Figure 7 12 CBSI 02-2000 1