INCH-POUND
MIL-PRF-31033
9 August 1996
PERFORMANCE SPECIFICATION
CAPACITORS, FIXED, CERAMIC DIELECTRIC, HIGH
RELIABILITY, DISCOIDAL, 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 requirements for high reliability, discoidal, ceramic dielectric, fixed capacitors. This
specification provides for three levels of product requirements: Class C, Class B, and Class S. Capacitors furnished to the
requirements of this specification are intended for use in Radio Frequency/Electromagnetic Interference (RFI/EMI) suppression filters
covered by MIL-PRF-28861. This specification establishes a Qualified Manufacturers List (QML) for discoidal capacitors that requires
demonstration of control of the quality system and manufacturing process and qualification of representative discoidal capacitor designs.
1.2 Classification
. Discoidal capacitors are classified into one of the following reliability levels as specified (see 6.2).
1.2.1 Product level
. Three product levels of discoidal capacitors are provided for in this specification. The product level is identified
by a single letter in accordance with table I:
TABLE I. Product level.
Symbol Level
C
B
S
Class C
Class B
Class S
a. Class C - Class C is the commercial high reliability level of this specification and is intended for those applications where full
conformance inspection is not required. The in-process inspection of this specification and the manufacturer's normal
screening/testing is still required.
b. Class B - Class B is the base product level of this specification and is intended for all applications except for space
applications. Class B discoidal capacitors are those which have been subjected to and passed all applicable
requirements, tests, and inspections detailed herein, including qualification and conformance inspection requirements
for Class B.
c. Class S - Class S is the highest product level of this specification and is intended for space applications. Class S discoidal
capacitors are those which have been subjected to and passed all applicable requirements, tests, and inspections
detailed herein, including qualification and conformance inspection requirements for Class S.
Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this
document should be addressed to: Defense Supply Center, Columbus, ATTN: VAM 3990 East Broad Street, Columbus, OH 43216-
5000 using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by
letter.
AMSC N/A FSC 5910
DISTRIBUTION STATEMENT A
. Approved for public release; distribution is unlimited.
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