Design, modeling and reliability of fuses are considered and described. The material presented in the manual can serve as the basis for the subsequent study of such disciplines as the theoretical foundations of near radar, the theory of signal processing in automatic control systems, radio circuits and signals. Designed for specialist students, bachelors and masters of higher technical educational institutions studying in the specialty 170105 "Fuses and weapons control systems," profile (specialization) 170100 "Weapons and weapons systems," as well as for engineers and graduate students of radio engineering specialties.