MIL-PRF-31033B
29 April 2011
SUPERSEDING
MIL-PRF-31033A
3 November 2003
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 two levels of product requirements: 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.
1.2 Classification. Discoidal capacitors are classified into one of the following reliability levels as specified.
1.2.1 Product level. Two 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
a. 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 in-process
inspection and conformance inspection requirements for Class B.
b. 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 in-process inspection and conformance inspection
requirements for Class S.
AMSC N/A FSC 5910
Comments, suggestions, or questions on this document should be addressed to: DLA Land and Maritime
ATTN: VAT, Post Office Box 3990, Columbus, OH 43218-3990 or e-mailed to capacitorfilter@dla.mil. Since
contact information can change, you may want to verify the currency of this address information using the
ASSIST Online database at https://assist.daps.dla.mil.
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