1、 IEC 62421Edition 1.0 2007-08INTERNATIONAL STANDARD Electronics assembly technology Electronic modules IEC 62421:2007(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2007 IEC,Geneva,S
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9、SE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 62421Edition 1.0 2007-08INTERNATIONAL STANDARD Electronics assembly technology Electronic modules INTERNATIONAL ELECTROTECHNICAL COMMISSION PICS 31.190 PRICE CODEISBN 2-8318-9300-3LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE
10、AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62421 IEC:2007(E)CONTENTS FOREWORD.4 1 Scope and object.6 2 Normative references.6 3 Terms and definitions.7 4 Business model and interface between supplier and user.7 4.1 Business model(see Figure 1 and Figure 2).7 4.1.1 General.7 4.1.2 E-type
11、business model.8 4.1.3 M-type business model.9 4.1.4 F-type business model.9 4.2 S-U interface(see Figure 1).9 4.2.1 S-U interface 1.9 4.2.2 S-U interface2.9 4.2.3 S-U interface3.9 4.3 Standardization areas.9 5 Preferred ratings.10 5.1 General.10 5.2 Preferred operating temperature range.11 5.3 Pref
12、erred rated voltage.11 6 Tests and measuring methods.11 6.1 Standard atmospheric conditions.11 6.1.1 Standard atmospheric conditions for testing.11 6.1.2 Referee conditions.11 6.1.3 Reference conditions.12 6.2 Electrical performance tests.12 6.2.1 General.12 6.2.2 Protection of electronic modules an
13、d test equipment.12 6.2.3 Accuracy of measurement.12 6.3 Mechanical performance tests.13 6.3.1 Robustness of terminations and integral mounting devices.13 6.3.2 Resistance to soldering heat.14 6.3.3 Solderability.14 6.3.4 Shock.14 6.3.5 Vibration(sinusoidal).14 6.3.6 Resistance to solvents.15 6.4 Cl
14、imatic performance tests.15 6.4.1 Dry heat.15 6.4.2 Cold.15 6.4.3 Damp heat,steady state.16 6.4.4 Change of temperature.16 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62421 IEC:2007(E)3 Figure 1 S-U interfaces in each business mode
15、l.8 Figure 2 Standardization areas in M-type and F-type business models.10 Table 1 Preferred temperatures to be selected for temperature ranges(C).11 Table 2 Referee conditions.12 Table 3 Application.14 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOO
16、K SUPPLY BUREAU.4 62421 IEC:2007(E)INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRONICS ASSEMBLY TECHNOLOGY ELECTRONIC MODULES FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all national electrotechnical committees(IEC National Committees).The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.To this end and in addition to other acti
