AMSC N/A FSC 5910
DISTRIBUTION STATEMENT A
. Approved for public release; distribution is unlimited.
INCH-POUND
MIL-PRF-20K
14 November 2003
SUPERSEDING
MIL-PRF-20J
28 January 2003
PERFORMANCE SPECIFICATION
CAPACITOR, FIXED, CERAMIC DIELECTRIC,
(TEMPERATURE COMPENSATING),
ESTABLISHED RELIABILITY AND NON-ESTABLISHED RELIABILITY,
GENERAL SPECIFICATION FOR
This specification is approved for use by all Departments
and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope
. 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.
1.2 Classification
.
1.2.1 Part or Identifying Number (PIN)
. Capacitors specified herein (see 3.1) are identified by a PIN that consists
of the basic number of the performance specification sheet followed by a series of coded characters. Each
performance specification sheet covers a different capacitor style. The coded number provides information
concerning the capacitors’ characteristic, capacitance value, capacitance tolerance, and product level. The PIN is in
the following form:
*
CCR75 CH 1R0 C M V
ER
Style
(1.2.1.1)
Characteristic
(1.2.1.2)
Capacitance
value
(1.2.1.3)
Capacitance
tolerance
(1.2.1.4)
Product level
designator
(1.2.1.5)
Standoff
option
(1.2.1.6)
CC75 CH 1R0 C
NON-ER
Style
(1.2.1.1)
Characteristic
(1.2.1.2)
Capacitance
value
(1.2.1.3)
Capacitance
tolerance
(1.2.1.4)
Comments, suggestions, or questions on this document should be addressed to: Defense Supply Center,
Columbus, DSCC-VAT, Post Office Box 3990, Columbus, OH 43216-5000 or e-mailed to
capacitorfilter@dscc.dla.mil
. Since contact information can change, you may want to verify the currency of this
address information using the ASSIST Online database at www.dodssp.daps.mil.
Downloaded from http://www.everyspec.com
