SUMMARY
The comparative analysis of reliability prediction methods in the design of radio-electronicsystems was carried out. In the systems design, it is offered to pass on to the method of probabilisticphysicalanalysis of reliability with the application of exponential and diffusive non-monotonic distributionsof components failure. The usage of the method of probabilistic-physical analysis of reliability can provideconsiderable economic effect, by reducing the cost of systems samples in several times