MIL-PRF-20M
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order
(see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel
need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are
maintained by the Inventory Control Point's packaging activities within the Military Service or Defense Agency, or
within the military service's system commands. Packaging data retrieval is available from the managing Military
Department's or Defense Agency's automated packaging files, CD-ROM products, or by contacting the responsible
packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. These capacitors are primarily designed for use where compensation is needed to counteract
reactive changes, caused by temperature variations, in other circuit components. However they can be used in any
precision-type circuit where their characteristics are suitable. Ceramic capacitors are substantially smaller than paper
or mica units of the same capacitance and voltage rating. They can be used where mica or paper capacitors have
too wide a capacitance tolerance. The lead placement makes ceramic capacitors suitable for printed-circuit use.
Capacitors covered by this specification are unique due to the fact that they must be able to operate satisfactorily in
military systems under the following demanding conditions: Extreme temperatures (-55°C to +125°C), vibration (20
G's), and damp environments. These capacitors also offer established reliability that is verified under a qualification
system. Commercial components are not designed to withstand these military conditions.
6.2 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number, and date of this specification, the applicable specification sheet, and the complete PIN (see 3.1
and 1.2.1).
b. Required number of radiographic views and planes, if other than that specified (see 4.7.18c).
d. Packaging requirements (see 5.1).
6.3 Qualification. With respect to products requiring qualification, awards will be made only for products which
are, at the time of award of contract, qualified for inclusion in Qualified Products List (QPL) whether or not such
products have actually been so listed by that date. The attention of the contractors is called to these requirements,
and manufacturers are urged to arrange to have the products that they propose to offer to the Federal Government
tested for qualification in order that they may be eligible to be awarded contracts or orders for the products covered
by this specification. Information pertaining to qualification of products may be obtained from DLA Land and
Maritime, Attn: VQP, PO Box 3990, Columbus, OH 43218-3990, or by e-mail to vqp.chief@dla.mil. An online listing
of products qualified to this specification may be found in the Qualified Products Database (QPD) at
6.3.1 Copies of SD-6. Copies of SD-6, "Provisions Governing Qualification" are available online at
https://assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D,
Philadelphia, PA 19111-5094.
6.4 PIN. This specification requires a PIN that describes codification or classification and appropriate references
6.5 Characteristic. To facilitate use of the curves on figure 1, maximum and minimum readings at -55°C, -40°C,
-10°C, +45°C, +65°C, +85°C, and +125°C are given in table X.
6.6 Standard capacitance types. Equipment designers should refer to MIL-HDBK-198, "Capacitors, Selection and
Use of", for standard capacitor types and selected values chosen from this specification. MIL-HDBK-198 provides a
selection of standard capacitors for new equipment design.
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