IEC 60147-3A:1973 Essential ratings and characteristics of semiconductor devices and general principles of measuring methods. Part 3 : Reference methods of measurement. was changed to IEC 60747-2:1983 Semiconductor devices. Discrete devices. Part 2 : Rectifier diodes.
IEC 60147-3A:1973 Essential ratings and characteristics of semiconductor devices and general principles of measuring methods. Part 3 : Reference methods of measurement. was changed to IEC 60747-6:1983 Semiconductor devices. Discrete devices. Part 6 : Thyristors.
IEC 60147-3A:1973 Essential ratings and characteristics of semiconductor devices and general principles of measuring methods. Part 3 : Reference methods of measurement. was changed to IEC 60747-1:1983 Semiconductor devices. Discrete devices. Part 1 : General.
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