1、AMSC N/A FSC 5935 MIL-DTL-21617B 6 April 2012 SUPERSEDING MIL-DTL-21617A 24 July 2003 DETAIL SPECIFICATION CONNECTORS, PLUG AND RECEPTACLE, ELECTRICAL, RECTANGULAR, POLARIZED SHELL, MINIATURE TYPE GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the
2、 Department of Defense. 1. SCOPE 1.1 Scope. This specification covers multi-contact, rectangular, polarized shell, miniature type, electrical and electronic rack and panel connectors (plugs and receptacles). 1.2 Classification. Connectors are of the following types, classes, and styles, as specified
3、 herein. 1.2.1 Part or Identifying Number (PIN). The PIN consist of the letter “M“, the basic number of the specification sheet, and an assigned dash number as shown in the following example: M21617/1 P M 004A Specification Types Classes Insert styles sheet number (see 1.2.2) (see 1.2.3) (see 1.2.4)
4、 (see.1.2.1) 1.2.2 Types. Type P - Plug. Type J - Receptacle. Type JS - Receptacle, pressurized type. Comments, suggestions, or questions on this document should be addressed to: DLA Land and Maritime, ATTN: VAI, P.O. Box 3990, Columbus, OH 43218-3990 or email: RectangularConnectordla.mil. Since con
5、tact 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/. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-21617B 2 1.2.3 Classes. C
6、lass F - Female, inserts containing socket contacts. Class M - Male, inserts containing pin contacts. 1.2.4 Insert styles. 004A - 4 contacts 008A - 8 contacts 013A - 13 contacts 017A - 17 contacts 023A - 23 contacts 026A - 26 contacts 032A - 32 contacts 040A - 40 contacts 007C - 7 coaxial contacts 0
7、16C - 3 coaxial contacts and 13 size 20 contacts 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional i
8、nformation or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2
9、.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks 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. DEPARTMENT OF DEFENSE STANDARDS
10、MIL-STD-202 - Test Methods for Electronic and Electrical Component Parts. MIL-STD-889 - Dissimilar Metals. (Copies of these documents are available online at https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 191
11、11-5094.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-21617B 3 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
12、 are those cited in the solicitation or contract (see 6.2). ASTM INTERNATIONAL ASTM B85/B85M - Aluminum-Alloy Die Castings ASTM B488 - Gold for Engineering Uses Electrodeposited Coatings Of ASTM D2000 - Rubber Products in Automotive Applications ASTM D5948 - Compounds, Molding, Thermosetting (Copies
13、 of these documents are available online at http:/www.astm.org or to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) ELECTRONIC COMPONENTS INDUSTRY ASSOCIATION (ECIA) EIA-364 - Electrical Connector/Socket Test Procedures Including Environmental Classif
14、ications EIA-364-06 - Contact Resistance Test Procedure for Electrical Connectors EIA-364-20 - Withstanding Voltage Test Procedure for Electrical Connectors, Sockets and Coaxial Contacts EIA/ECA-364-21 - Insulation Resistance Test Procedure for Electrical Connectors, Sockets, and Coaxial Contacts EI
15、A-364-25 - Probe Damage Test Procedure for Electrical Connectors EIA/ECA-364-26 - Salt Spray Test Procedure for Electrical Connectors, Contacts and Sockets EIA-364-27 - Mechanical Shock (Specified Pulse) Test Procedure for Electrical Connectors EIA-364-28 - Vibration Test Procedure for Electrical Co
16、nnectors and Sockets EIA-364-32 - Thermal Shock (Temperature Cycling) Test Procedure for Electrical Connectors and Sockets EIA-364-56 - Resistance to Soldering Heat Test Procedure for Electrical Connectors and Sockets (Copies of these documents are available online at http:/www.eciaonline.org or fro
17、m the Electronic Component Industry Association, 1111Alderman Drive, Suite 400, Alpharetta, GA 30005-4175.) IPC ASSOCIATION CONNECTION ELECTRONICS INDUSTRIES J-STD-004 - Soldering Fluxes Requirements For J-STD-006 - Electronic Grade Solder Alloys and Fluxed and Non-Fluxed Solid Solders for Electroni
18、c Soldering Applications Requirements For (Copies of these documents are available online at http:/www.ipc.org or from the IPC - Association Connecting Electronics Industries, 3000 Lakeside Drive, Suite 309 S, Bannockburn, IL 60015-1249.) Provided by IHSNot for ResaleNo reproduction or networking pe
19、rmitted without license from IHS-,-,-MIL-DTL-21617B 4 SAE INTERNATIONAL SAE-AMS-P-81728 - Plating, Tin-Lead (Electrodeposited) SAE-AMS-QQ-N-290 - Nickel Plating (Electrodeposited) SAE-AMS-QQ-P-416 - Plating, Cadmium (Electrodeposited) SAE-AMS2700 - Passivation of Corrosion Resistant Steels (Copies o
20、f these documents are available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict betw
21、een 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 Specif
22、ication 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. 3.2 First article. When specified
23、 (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.3. 3.3 Materials. Materials shall be as identified herein. However, when a definite material is not specified, a material shall be used which will enable the connectors to meet all requirements of this specifica
24、tion. Acceptance or approval of any constituent material shall not be construed as a guarantee for acceptance of the finished product. 3.3.1 Interface materials, platings and processes. Interface materials, platings, and processes have been established to provide assurances that connectors manufactu
25、red to this specification will properly interface to similar industry standard or government specified connector systems without problems of electrochemical incompatibility or excessive interface surface wear. The manufacturers of connectors supplied to this specification may be allowed to use alter
26、nate recognized industry standard materials, platings, and processes from those identified in 3.3. Alternate materials, platings and processes used must be coordinated with the qualifying activity as part of the qualification process. Use of alternates to those referenced guidance items by the suppl
27、ier must not result in inferior short or long term performance or reliability of supplied connectors as compared with connectors manufactured using the referenced materials, platings, or processes. Short or long term failures or reliability problems due to use of these alternates shall be the respon
28、sibility of the supplier. 3.3.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promot
29、es economically advantageous life cycle costs. 3.3.3. Metals and finishes. All exposed metal parts, other than electrical contacts, may be aluminum, aluminum alloy, brass, steel or corrosion resistant steel. All exposed metal parts, other than electrical contacts, shall be cadmium plated in accordan
30、ce with SAE-AMS-QQ-P-416, type II, class 3, except that preliminary plating of other metal will be permissible. The resultant finish shall be electrically conductive. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-21617B 5 3.3.4 Dissimilar m
31、etals. When dissimilar metals are used in intimate contact with each other, protection against electrolysis and corrosion shall be provided. The use of dissimilar metals, which in contact, tend toward active electrolytic corrosion (particularly brass, copper, or steel used in contact with aluminum a
32、nd aluminum alloy is not acceptable (see 3.3.3). For guidance, reference MIL-STD-889. Where dissimilar metals are used in intimate contact with each other, protection against electrolysis and corrosion shall be provided. Dissimilar metals such as brass, copper or steel (except corrosion-resisting st
33、eel), shall be passivated in accordance with SAE-AMS2700 (see 3.3.1) and shall not be used in intimate contact with aluminum or aluminum alloy. 3.3.5. Pure tin. The use of pure tin is prohibited. Tin content used in connector materials shall not exceed 97 percent, and an alloy material shall be chos
34、en to inhibit the growth of tin whiskers (see 6.3). 3.3.6 Nonmagnetic materials. All parts shall be made from materials considered to be nonmagnetic. 3.3.7 Shell die castings. Shell die castings and workmanship shall be aluminum in accordance with ASTM B85/B85M alloys A13800, A03840, or A14130. 3.3.
35、8 Insert materials. 3.3.8.1 Rigid insert material. Rigid insert materials shall be mineral filled type conforming to Melamine type MME, Dially Orho-Phthalatic type MDG or Diallyl Iso-Phalatec type MIG in accordance with ASTM D5948. 3.3.8.2 Resilient materials. Resilient materials shall be in accorda
36、nce with ASTM D2000, M2BC 710 A24B24E034 and shall be molded of a high grade resilient dielectric or elastomer having a shore hardness not greater than 85 and shall conform to the additional requirements specified herein. 3.4 Electrical characteristics. Connectors shall have the electrical character
37、istics shown on table I. TABLE I. Nominal current rating. Contact size Amperes 20 16 12 8 4 7.5 13.0 23.0 46.0 80.0 3.5 Design and construction. Connectors shall be of the design, construction, and physical dimensions specified herein and in accordance with the applicable specification sheets (see 3
38、.1). Bosses and barriers shall be used as necessary to meet leakage requirements. 3.5.1 Insert design. Inserts shall be designed and constructed with proper sections and radii in order that they will not crack, chip, or break in assembly or in normal service. Structural weakness shall not be caused
39、by depressions used to achieve longer creepage paths. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-21617B 6 3.5.2 Contacts. Contact dimensions shall conform to table II and shall be as shown on figure 1. TABLE II. Contact dimensions. 1/ Co
40、ntact size A .001 (0.025) (mm) B minimum (mm) C maximum (mm) D minimum (mm) E minimum (mm) 20 16 12 8 4 .040 (1.02) .0625 (1.59) .094 (2.39) .142 (3.61) .225 (5.71) .043 (1.09) .065 (1.65) .112 (2.84) .207 (5.26) .262 (6.65) .090 (2.29) .127 (3.23) .190 (4.83) .300 (7.62) .441 (11.20) .070 (1.78) .0
41、78 (1.98) .156 (3.96) .250 (6.35) .312 (7.92) .093 (2.36) .125 (3.17) .375 (9.52) .312 (7.92) .312 (7.92) 1/ All dimensions are after plating. FIGURE 1. Contact dimensions. 3.5.3 Contact material. Contacts shall be made from copper alloy material and shall be gold plated in accordance with ASTM B488
42、, type II, code C, class 1.27 (50 microinches) minimum, over a nickel underplate 50 to 150 microinches (1.27 m to 3.81 m) thick, in accordance with SAE-AMS-QQ-N-290. Silver shall not be used as an underplate. 3.5.4 Terminals. The interior surfaces of the solder cups of the contacts shall be either g
43、old flash or tin/lead, the following details shall apply: a. Gold flash, over a nickel underplate 50 to 150 microinches (1.27 m to 3.81 m) thick, in accordance with SAE-AMS-QQ-N-290. b. Tin/lead in accordance with SAE-AMS-P-81728. 3.5.5 Tinning solder cups. Where pretinned solder cups are required,
44、the interior surface of solder cups shall be completely tinned over 100 percent of the full circle portion and for at least 50 percent of the remainder of the solder well area with solder conforming to composition Sn60 of J-STD-006. Only fluxes meeting J-STD-004, shall be used, any excess of which s
45、hall be removed. Solder cup terminals shall be so constructed that liquid solder cannot leak through to the front of the socket and prevent insertion of the pin. No excess solder shall be on the exterior of the solder cup. Provided by IHSNot for ResaleNo reproduction or networking permitted without
46、license from IHS-,-,-MIL-DTL-21617B 7 3.5.6 Contact identification. Contact positions shall be designated as specified in the individual specification sheets. Letters or numerals shall be clearly legible and shall be either raised or depressed. Letters or numerals shall be arranged to avoid confusio
47、n between contacts. All letters shall appear on the front of each insert and, as many as practical, on the rear face. Lettering of the socket insert shall correspond with that of the mating pin insert. 3.5.7 Contact arrangement. Contacts shall be arranged in accordance with the individual specificat
48、ion sheet requirements. 3.5.8 Contact design. Contacts shall be so designed that mating or unmating the connectors will not damage them. 3.5.8.1 Pin engaging end. The entering ends of pins, sizes 8, 12, and 16, shall be formed with a spherical radius approximately one-half the diameter of the pin, a
49、llowing for a flat not in excess of 0.015 inch (0.38 mm) diameter in the center of the spherical development. The entering end of size 20 pin shall be either formed with a spherical or a conical tip. The tip of the spherical end of the size 4 pin shall be cut off to form a blunt end such that the diameter of the blunt end shall be .125 inch (3.18 mm) less than the pin diameter. 3.5.8.2 Socket engaging end.
