Standardization Engineering Practices Study of Electronic Component Pbs

摘要

Phase I of the study consisted of a survey of manufacturers of resistors, capacitors and inductors to determine needs and availability of component parts with weldable lead materials and the manufacturers of these components. Phase II consisted of designing and performing a series of tests for performance evaluation of the component parts to determine the effect of weldable lead materials on performance parameters. The majority of the units evaluated were manufactured with nickel A or dumet leads, while a limited number of types and styles with standard leads were used as a control. The following tests were considered as being affected by the change in lead material: (1) Life test, (2)Short term overload test, (3) Lead fatigue test, (4) Vibration test, (5) Shock test, and (6) Stability. The results of the tests of the weldable lead units were evaluated in an effort to determine their compliance with the applicable military specifications.