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NASA & ESA Specification Systems for High Reliability E.E.E. Parts

The U.S. National Aeronautics and Space Administration (NASA) adopt MIL-STD-975 as Standards Electrical, Electronic and Electromechanical (EEE) Parts List, consisting of selected standard Military specification Part Numbers and are divided into two Quality level classifications, Grade 1 & Grade 2 components which vary enormously between commodities and between individual specifications.

The European Space Agency (ESA) uses its own specifications for electronic parts based on ECSS-Q-ST-60C standard for requirements for selection, control, procurement and usage of EEE components for space projects. This standard differentiates between three (3) classes of components through three different sets of standardization requirements (clauses) to be met.

These two specification systems have the same goal, to provide a set of documents for part procurement which contain performance and testing requirements designed to provide reliable components.

Standards for High-Reliability component

These standards ensure that components meet stringent criteria for performance, durability, and reliability, particularly in critical and demanding applications. 

Standard References:

• ECSS-Q-ST-60 – Electrical, Electronic and Electromechanical (EEE) components
• ECSS-Q-ST-60-12 – Design, selection, procurement and use of Microwave MMICs
• ECSS-Q-ST-60-13 – Commercial Of The Shelf (COTS) components
• MIL-PRF-19500 – Diodes & Transitors qualified JANTX/JANTXV/JANS
• MIL-PRF-38534 – Hybrid Microcircuits to Class H & K
• MIL-PRF-38535 – Integrated Circuits (SMD Microcircuits)
• MIL-PRF-55310 – Crystal Controlled Oscillators (XO, OCXO, TCXO)
• NASA EEE-INST-002: Outlines requirements for EEE components used in Space applications, focusing on reliability and performance
• AEC-Q100: Automotive Electronics Council’s qualification standard for integrated circuits