MIL-PRF-20K, PERFORMANCE SPECIFICATION, PERFORMANCE SPECIFICATION CAPACITOR, FIXED, CERAMIC DIELECTRIC, (TEMPERATURE COMPENSATING), ESTABLISHED RELIABILITY AND NON-ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR (14 NOV 2003) [SUPERSEDING MIL-C-2
MIL-PRF-20K, PERFORMANCE SPECIFICATION, PERFORMANCE SPECIFICATION CAPACITOR, FIXED, CERAMIC DIELECTRIC,
(TEMPERATURE COMPENSATING), ESTABLISHED RELIABILITY AND NON-ESTABLISHED RELIABILITY, GENERAL SPECIFICATION FOR (14 NOV 2003) [SUPERSEDING MIL-C-20G]., This specification covers the general requirements for established reliability (ER) and non-ER,
temperature compensating, fixed capacitors for use primarily where compensation is necessary for circuit
applications due to temperature changes, in bypass and coupling applications. Capacitors meeting the ER
requirements specified herein have a failure rate level (FRL) ranging from 1.0 percent per 1,000 hours to 0.00l
percent per 1,000 hours. These failure rate levels are established at a 90-percent confidence level based on the life
test parameters specified and are maintained at a 10-percent producer's risk. An acceleration factor of 8:1 has been
used to relate the life test data at 200 percent of rated voltage at the applicable high test temperature to the rated
voltage at the applicable high test temperature. A part per million (ppm) quality system is used for documenting and
reporting the average outgoing quality of ER capacitors supplied to this specification. Statistical process control (SPC) techniques are required in the manufacturing process to minimize variation in production of ER capacitors
supplied to the requirements of this specification.