MIL-PRF-39014H (1)

Abstract

This specification covers the general requirements for established reliability (ER) and non-established reliability (non-ER), (product level C), general purpose, ceramic dielectric, insulated, fixed capacitors for use in applications where appreciable variations in capacitance with respect to temperature, voltage, frequency, and life can be tolerated (see 6.1). ER capacitors covered by this specification have failure rate levels (FRL) (M, P, R, and S) ranging from 1.0 percent to 0.001 percent per 1,000 hours. These FRLs are established at a 90-percent confidence level and maintained at a 10-percent producer's risk and are based on life tests performed at maximum rated voltage at maximum rated temperature. An acceleration factor of 8:1 has been used to relate life test data obtained at 200 percent of rated voltage at maximum rated temperature, to rated voltage at rated temperature.<b><u>Intended Use:</u></b> These capacitors are primarily designed for use where a small physical size with comparatively large electrical capacitance and high IR is required. General purpose ceramic capacitors are not intended for frequency-determining or precision circuits but are suitable for use as by-pass, filter, and non-critical coupling elements in high-frequency circuits. All of these applications are of the type where DF is not critical and moderate changes due to temperature, voltage, and frequency variations do not affect the proper functioning of the circuit. These capacitors also offer established reliability that is verified under a qualification system.<br>