INCH-POUND
MIL-PRF-49137E
24 April 2014
SUPERSEDING
MIL-PRF-49137D
19 February 2009
PERFORMANCE SPECIFICATION
CAPACITORS, FIXED, ELECTROLYTIC (SOLID ELECTROLYTE), TANTALUM,
MOLDED, CONFORMAL COATED AND METAL CASED WITH PLASTIC END-FILL,
NONHERMETICALLY SEALED, 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 fixed, electrolytic (solid electrolyte), tantalum,
molded, conformal coated and metal cased with plastic end-fill nonhermetically sealed capacitors, primarily intended
for filter, bypass, coupling, and other applications where the alternating current (ac) component is small compared to
the direct current (dc) rated voltage. These capacitors are intended to be used only where supplemental moisture
protection is provided or for noncritical applications where hermetic moisture protection is not required.
1.2 Classification. Capacitors covered by this specification are classified by the style, as specified (see 3.1).
1.2.1 Part or Identifying Number (PIN). The PIN is in the following form and as specified (see 3.1).
CX01
D
225
K
Style
Voltage
Capacitance
Capacitance
(see 1.2.1.1)
(see 1.2.1.2)
(see 1.2.1.3)
tolerance
(see 1.2.1.4)
1.2.1.1 Style. The style is identified by the two-letter symbol CX, followed by a two-digit number; the letters identify
fixed, electrolytic (solid electrolyte) tantalum, molded, conformal coated and metal cased with plastic end-fill,
nonhermetically sealed capacitors, and the number identifies the design of the capacitor.
1.2.1.2 Voltage. The voltage (rated and surge) is identified by a single letter as shown in table I.
1.2.1.3 Capacitance. The nominal capacitance value, expressed in picofarads (pF) is identified by a three-digit
number; the first two digits represent significant figures and the last digit specifies the number of zeros to follow.
Comments, suggestions, or questions on this document should be addressed to: Communications-Electronics
Research Development and Engineering Center (CERDEC), ATTN: RDER-PRO, Aberdeen Proving Ground, MD
21005, or emailed to usarmy.APG.cerdec.mbx.standardization-crx@mail.mil. Since contact information can
change, you may want to verify the currency of this address information using the ASSIST Online database at
AMSC N/A
FSC 5910
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