MIL-PRF-49137 Capacitors, Fixed, Electrolytic \(Solid Electrolyte\), Tantalum, Molded, Conformal Coated And Metal Cased With Plastic End-Fill, Nonhermetically Sealed, General Specification ForThis 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.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12

MIL-PRF-49137E

DEPARTMENT OF DEFENSE STANDARDS

Electronics and Electrical Component Parts, Test Methods for

Leads For Electronic Component Parts

Marking of Electrical and Electronic Parts

(Copies of these documents are available online at https://quicksearch.dla.mil/ or from the Standardization

Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)

2.3 Non-Government publications. The following documents form a part of this document to the extent specified

herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

General Requirements for the Competence of Testing and Calibration

Laboratories

Measurement Management Systems � Requirements for Measurement

Processes and Measuring Equipment

(Copies of these documents are available online at https://www.iso.org or from ISO, 1, ch. de la Voie-Creuse, Case

postale 56 � CH-1211 Geneva 20, Switzerland.)

2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the

text of this document and the references cited herein (except for related specification sheets), the text of this

document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless

a specific exemption has been obtained.

3. REQUIREMENTS

3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the

applicable specification sheet. In the event of any conflict between the requirements of this specification and the

specification sheet, the latter shall govern (see 6.2).

3.2 Qualification. Capacitors furnished under this specification shall be products that are qualified for listing on the

applicable Qualified Products List (QPL) before contract award (see 4.4 and 6.4).

3.3 Materials. Materials shall be as specified herein. However, when a definite material is not specified, a material

shall be used which will enable the capacitors to meet the performance requirements of this specification.

Acceptance or approval of any constituent material shall not be construed as a guaranty of the acceptance of the

finished product. The use of paper products is not acceptable.

3.3.1 Solder and soldering flux. Solder and soldering flux shall be of such quality as to enable the capacitors to

meet all of the requirements of this specification.

3.4 Interface and physical dimension requirements. Capacitors shall meet the interface requirements and physical

dimensions specified (see 3.1).

3.4.1 Body structure. The body structure shall be of encapsulated form (see 3.1).

3.4.2 Terminals. Terminals shall be of a solid conductor, of the dimensions specified (see 3.1), and shall be

suitably treated to facilitate soldering.

3.4.2.1 Solder dip (retinning). Only the manufacturer may solder dip/retin the lead of the capacitors supplied to this

specification, provided the solder dip process has been approved by the qualifying activity.