1、 IEC TR 61188-8 Edition 1.0 2021-01 TECHNICAL REPORT Circuit boards and circuit board assemblies Design and use Part 8:3D shape data for CAD component library IEC TR 61188-8:2021-01(en)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2021 IEC,Geneva,Switzerland All rights reserved.Unle
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9、national Electrotechnical Vocabulary(IEV)online.IEC TR 61188-8 Edition 1.0 2021-01 TECHNICAL REPORT Circuit boards and circuit board assemblies Design and use Part 8:3D shape data for CAD component library INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 31.180;31.190 ISBN 978-2-8322-9226-6 Registered
10、trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinside 2 IEC TR 61188-8:2021 IEC 2021 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references.6 3 Terms,definitions and abbreviated terms.6 3.1 Terms and
11、definitions.6 3.2 Abbreviated terms.6 4 Classification of component shape data.6 4.1 Classification by technical drawing.6 4.2 Classification by the kind of component shape data.7 4.2.1 General.7 4.2.2 Master data.7 4.2.3 Design-use data.7 4.2.4 Complement data.7 4.3 Relation between technical drawi
12、ng and component shape data.7 5 Configuration data of shape data.7 5.1 General.7 5.2 Dimensions.8 5.2.1 Dimensions of 2D drawing.8 5.2.2 Dimensions of 3D shape models.8 5.3 Material distinction.8 5.4 Marking.8 5.5 Component identification information.8 5.6 Reference point and placement angle.9 5.6.1
13、 Rules for 2D drawings.9 5.6.2 Rules for 3D shape models(component with no moving part).9 5.6.3 Rules for 3D shape models(component with moving part).10 5.7 Scale.11 5.8 CAD format.11 5.8.1 2D drawings.11 5.8.2 3D shape models.11 5.9 Component shape levels.11 5.9.1 General.11 5.9.2 Level 1.11 5.9.3
14、Level 2.11 5.9.4 Level 3.12 5.9.5 Level 4.12 5.10 Other attributes.13 5.10.1 Land pattern data.13 5.10.2 Courtyard data.13 5.10.3 Other attributes data.13 6 Basic design logic classification for components.13 Bibliography.17 Figure 1 Marking.8 Figure 2 Reference point and placement angle.10 Figure 3
15、 Placement angle of connectors.10 IEC TR 61188-8:2021 IEC 2021 3 Figure 4 Placement angle of switches.10 Figure 5 Example of shape level 1.11 Figure 6 Examples of shape level 2.12 Figure 7 Examples of shape level 3.12 Figure 8 An example of shape level 4.13 Table 1 Abbreviated terms.6 Table 2 Relati
16、on between technical drawing and component shape data.7 Table 3 Basic design logic classification for SMD.14 Table 4 Basic design logic classification for IMD.16 4 IEC TR 61188-8:2021 IEC 2021 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ CIRCUIT BOARDS AND CIRCUIT BOARD ASSEMBLIES DESIGN AND USE Part 8:3D shape data for CAD component library FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all national electrotechnical committ