{"id":420816,"date":"2024-10-20T06:33:02","date_gmt":"2024-10-20T06:33:02","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-612402017-2\/"},"modified":"2024-10-26T12:15:18","modified_gmt":"2024-10-26T12:15:18","slug":"bs-en-612402017-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-612402017-2\/","title":{"rendered":"BS EN 61240:2017"},"content":{"rendered":"
This International Standard sets out general rules for drawing all dimensional and geometrical characteristics of a surface-mounted piezoelectric device package (referred to in this document as SMD) in order to ensure mechanical inter-changeability of all outline drawings of the SMDs for frequency control and selection.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
---|---|---|---|---|---|---|---|
6<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 1 Scope 2 Normative references 3 Classification of SMD 4 Title of the outline drawing 5 Composition of the outline drawing 5.1 Elements of outline drawings <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 5.2 Outline drawing 5.3 Table of detailed dimensions 5.4 Actual size sketch 5.5 Drawing of terminal land areas 5.6 Terminal lead details <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | Figures Figure 1 \u2013 Illustration of terminal projection zone <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 6 Requirements for terminal leads 7 Requirements for the terminal land area1F 8 Connections of terminal leads Figure 2 \u2013 Example of a terminal land area <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 9 Descriptive notes <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | Annex A (informative) Miniaturized leadless ceramic enclosures of piezoelectric devices (SMD) for frequency control and selection A.1 Precise drawing Figure A.1 \u2013 Upper part of the view from above Tables Table A.1 \u2013 Scale of drawings <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | Figure A.2 \u2013 Front view (without a board) Figure A.3 \u2013 Front view (with a board) Table A.2 \u2013 Guideline for dimension table <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | A.2 Requirements for enclosures with 3 terminals A.3 Naming rule for new type of enclosures Table A.3 \u2013 Guideline for column \u201cMax.\u201d of Table A.2 for A, B <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | Table A.4 \u2013 Examples of correspondence between new and old enclosures <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | Annex B (informative) Example of terminal connections for surface-mounted piezoelectric devices (SMD) for frequency control and selection Table B.1 \u2013 Examples of terminal connections for various types of piezoelectric devices <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Piezoelectric devices. Preparation of outline drawings of surface-mounted devices (SMD) for frequency control and selection. General rules<\/b><\/p>\n |