NPFC - MIL-PRF-49137
CAPACITORS, FIXED, ELECTROLYTIC (SOLID ELECTROLYTE), TANTALUM, MOLDED, CONFORMAL COATED AND METAL CASED WITH PLASTIC END-FILL, NONHERMETICALLY SEALED, GENERAL SPECIFICATION FOR
| Organization: | NPFC |
| Publication Date: | 9 October 1997 |
| Status: | inactive |
| Page Count: | 23 |
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.
Capacitors covered by this specification are classified by the style, as specified (see 3.1).
The PIN will be in the following form and as specified (see 3.1 and 6.2). Beneficial comments (recommendations additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Communications - Electronics Command, ATTN: AMSEL-LC-LEO-E-EP, Fort Monmouth, NJ 07703-5023, by using the Standardization Document Improvement Proposal (DP Form 1426) appearing at the end of this document, or by letter. TABLE I. Voltage.
Symbol Rated (85° C) Surge (85° C)
Volts, dc Volts, dc
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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.
The voltage (rated and surge) is identified by a single letter as shown in table I.
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.
The capacitance tolerance is identified by a single letter as shown in table II. TABLE II. Capacitance tolerance.
Symbol Capacitance tolerance
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intended Use:
Capacitors covered by this specification are intended mainly for use in filter, bypass, coupling, blocking, and other low-voltage applications (such as transistor circuits) where stability, size,... View More
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