DIN EN 16602-30-11:2014-12

This standard specifies derating requirements applicable to electronic, electrical and electromechanical components. Derating is a long standing practice applied to components used on spacecraft. Benefits of this practice are now proven, but for competitiveness reasons, it becomes necessary to find an optimized reliability. Too high a derating can lead to over-design, over-cost and over-sizing of components, the direct consequence being excess volume and weight. The aim is to obtain reliable and high performance equipment without over-sizing of the components. For this reason and if possible, this standard provides derating requirements depending on mission duration and mean temperature, taking into account demonstrated limits of component capabilities. This standard applies to all parties involved at all levels in the realization of space segment hardware and its interfaces. The objective of this standard is to provide customers with a guaranteed performance and reliability up to the equipment end-of-life. To this end, the following are specified: load ratios or limits to reduce stress applied to components; application rules and recommendations. This standard may be tailored for the specific characteristics and constraints of a space project, in accordance with ECSS-S-ST-00. This document (EN 16602-30-11:2014) has been prepared by Technical Committee CEN/CLC/TC 5 "Space", the secretariat of which is held by DIN (Germany). This document has been developed to specifically cover space systems and therefore has precedence over any European Standard since it covers the same scope but with a wider domain of applicability (for example aerospace). The responsible German body is Working Committee NA 131-10-01 AA "Interoperabilität von Informations-, Kommunikations- und Navigationssystemen" ("Interoperability of information, communication and navigation systems") of the DIN Standards Committee Aerospace (NL).