Provides requirements for the following categories of discrete devices: variable capacitance diodes and snap-off diodes, mixer diodes and detector diodes, avalanche diodes, gunn diodes,bipolar transistors and field-effect transistors.This second edition cancels and replaces the first edition, published in 1991, its amendments 1, 2 and 3 (1993, 1999 and 2001, respectively), and constitutes a technical revision.