1、REVISIONS LTR DESCRIPTION DATE APPROVED A Change CAGE 14933 to 037Z3. Updated Government specifications and standards. Editorial changes throughout. 05/14/02 Robert M. Heber Prepared in accordance with ASME Y14.100 REV PAGE REV PAGE REV A A A A A A A A A A A A A REV STATUS OF PAGES PAGE 1 2 3 4 5 6
2、7 8 9 10 12 13 14 PREPARED BY PMIC N/A William Carpenter DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OHIO 43216-5000 CHECKED BY TITLE James P. Donohue APPROVED BY Randy Larson CONNECTOR, ELECTRICAL, PWB TERMINATED, .025 INCH SQUARE POST, RECEPTACLE HOUSINGS, GENERAL SPECIFICATION FOR SIZE CAGE CODE 03
3、7Z3 DWG. NO. 92024 Original date of drawing 1 July 1994 A REV A PAGE 1 OF 14 AMSC N/A 5935-E643-35 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SIZE CAGE CODE DWG NO.
4、 037Z3 92024 DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH 43216-5000 A REV A 2 1. SCOPE 1.1 Scope. This drawing covers the requirements for PCB mounted receptacle connector, for use with unshrouded .025 inch (0.64 mm) square pin headers, for use in low power applications requiring printed wiring boa
5、rd termination. 1.2 Part or Identifying Number (PIN). The complete PIN shall be in accordance with detail drawing. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to
6、the extent specified herein. Unless otherwise specified, the issues of these documents are these listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATION DEPARTMENT OF DEFENSE MIL-M-2451
7、9 - Molding Plastic, Electrical, Thermoplastic. STANDARDS DEPARTMENT OF DEFENSE MIL-STD-202 - Test Methods for Electrical and Electronic Components Parts. MIL-STD-1344 - Test Methods for Electrical Connectors. (Unless otherwise indicated, copies of the above specifications, standards, and handbooks
8、are available from the Defense Printing Service, Detachment Office, Building 4D, Customer Service, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.2 Other publications. The following documents form a part of this drawing to the extent specified herein. Unless otherwise specified, the issues of t
9、he documents, which are DOD adopted, shall be those listed in the issue of the DODISS specified in solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS shall be the issue of the non-Government documents, which is current on the date of the solicitation. ASTM INT
10、ERNATIONAL (ASTM) ASTM B36 - Standard Specification for Brass Plate, Sheet, Strip, and Rolled Bar. ASTM B122 - Copper and Copper Alloys. ASTM B194 - Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled Bar. ASTM B488 - Standard specifications for Electro deposited coating of Gold for Engineering U
11、ses. ASTM D4066 - Materials (PA) Nylon Injection and Extrusion, Standard For. (Application for copies of ASTM publications should be addressed to the ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, Pennsylvania, USA 19428-2959.) Provided by IHSNot for ResaleNo reproducti
12、on or networking permitted without license from IHS-,-,-SIZE CAGE CODE DWG NO. 037Z3 92024 DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH 43216-5000 A REV A 3 ELECTRONIC INDUSTRIES ASSOCIATION (EIA) EIA-364-56-1987 - Test Procedure 56, Resistance to Soldering Heat; Test Procedure for Electrical Connec
13、tors. (Application for copies should be addressed to the Global Engineering Documents, Attn: Customer Service Department, 15 Inverness Way East, Englewood, CO 80112.) NATIONAL CONFWERENCE OF STANDARDS LABS (NCSL) ANSI/NCSL Z540-1 - Calibration Laboratories and Measuring and Test Equipment General Re
14、quirements. (Applications for copies should be addressed to the National Conference of Standards Labs, 1800 30thStreet, Suit 305B, Boulder, CO 80301.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) AMS-QQ-N-290 - Nickel Plating (Electrodeposited). AMS-P-81728 - Plating, Tin-Lead (Electrodeposited). (Applicat
15、ions for copies should be addressed to the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096-0001.) UNDERWRITERS LABORATORIES INC. UL94 - Tests for Flammability of Plastic Materials for Parts in Devices and Applications. (Applications for copies should be addressed to the
16、 Underwriters Laboratories Inc., 1286 Walt Whitman Road, Melville, NY. 11747). (Non-government standards and other publications are normally available from the organizations which prepare or which distribute the documents. These documents also may be available in or through Libraries or other inform
17、ational services.) 2.3 Order of precedence. In the event of a conflict between the text of this drawing and the references cited herein (except for related associated specifications and specification sheets), the text of this drawing takes precedence. Nothing in this document, however, supersedes ap
18、plicable laws and regulations unless specific exemptions have been obtained. 3. REQUIREMENTS 3.1 DSCC requirements drawing. The individual requirements shall be in accordance with the applicable item requirements drawing and herein. 3.2 Design, construction, and physical dimensions. The design, cons
19、truction and physical dimensions shall be as specified in the applicable item requirements drawing and herein. 3.2.1 Contact design. Unless otherwise specified in the requirements drawing, the contact design shall consist of a single-piece tuning fork construction body or a one or two-piece construc
20、tion (body with spring members(s). 3.3 Material. The material for each part shall be as specified herein, or in the applicable requirements drawing. Substitute material may be used provided that it meets the performance requirements of this drawing or the applicable requirements drawing. Provided by
21、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SIZE CAGE CODE DWG NO. 037Z3 92024 DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH 43216-5000 A REV A 4 3.3.1 Contact body. Fork design: Copper alloy in accordance with ASTM B122. Spring contact design: The body shal
22、l be one-half hard brass alloy UNS C26000 in accordance with ASTM B36 or quarter hard (H01 Temper). 3.3.2 Contact spring. Spring design: The spring shall be (TH02 Temper) half-hard heat-treated beryllium copper UNSC17200 in accordance with ASTM B194. 3.3.3 Insulator housing. The insulator shall be g
23、lass-mineral-filled nylon in accordance with ASTM D4066 or glass filled thermoplastic in accordance with MIL-M-24519. All plastic shall be rated V-0 in accordance with UL-94. 3.3.4 Polarizing plug. The plug shall be unfilled nylon in accordance with ASTM-D4066 or glass filled thermoplastic in accord
24、ance with MIL-M-24519 and shall be molded from a resin having a flame retardant rating of V-2 or better, in accordance with UL-94. 3.4 Finish. 3.4.1 Contact body (tuning fork or two piece). The contact body shall be gold plated in accordance with ASTM B488 class code C, type 3, class 0.75 or 1.27 (3
25、0 or 50 microinches) minimum (see individual requirement drawing) (preplating is acceptable) or tin/lead in accordance with AMS-P-81728; 50 to 97 percent tin, over 50 microinches (1.27 m) minimum nickel in accordance with AMS-QQ-N-290, class 2. The soldertail shall be plate with 100 microinches (2.5
26、4 m) tin-lead in accordance with AMS-P-81728, 50 to 97 percent tin, over 50 microinches (1.27 m) minimum nickel in accordance with AMS-QQ-N-290, class 2. NOTE: When contacts have been provided in strip form, the absence of plating in the area where the contact was removed from the strip is acceptabl
27、e provided it is in a nonfunctional area and any corrosion formed is in a non functional area. 3.4.2 Contact spring. If applicable, for spring contact designs, the spring shall be plated with gold flash in accordance with ASTM B488, code C, type 3, class (as specified in the individual requirement d
28、rawing). 3.5 Design and construction. The receptacle shall be a multi-piece assembly having one or two rows of contacts with solder tail terminations for installation in .035 inch (0.88 mm) diameter holes in a printed wiring board thickness in accordance with individual item requirements. The connec
29、tor shall be capable of mating and unmating by hand without the use of special tools. 3.5.1 Interface. The female end of the contact shall interface with .025 inch (0.64 mm) square pins on .100 inch (2.54 mm) centers, without the use of special tools. 3.5.2 Interchangeability. The connector shall be
30、 capable of mating with an appropriately constituted male connector with the same population without degradation in performance. 3.5.3 Workmanship. Connectors shall be uniform in quality and shall be free from burrs, scratches, cracks, voids, chips, holes, sharp edges, or other defects that will adv
31、ersely affect life or serviceability. 3.5.4 Polariziation/keying. Polarization/keying of the connector shall be available through the use of individual polarizing plugs inserted into selected contact positions. Positions used to accomplish polarization/keying shall not be functional. 3.6 Electrical
32、characteristics. 3.6.1 Current rating. The maximum current rating of the connector shall be 3.0 amperes dc for individual terminals, and 2.0 amperes dc for the total connector. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SIZE CAGE CODE DWG NO. 03
33、7Z3 92024 DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH 43216-5000 A REV A 5 3.6.2 Contact resistance. The contact resistance when measured in accordance with MIL-STD-202, method 307, shall not exceed 10 milliohms, before humidity test (see 3.8.1) and 15 milliohms, after humidity test; the following
34、details shall apply. a. Method of connection: Attach current and voltage leads as shown on figure 1 (see note). b. Test current: 1.0 amperes dc. c. Sample size: 20 percent of connector population. NOTE: Differences in contact resistance between various terminal configurations represent changes in th
35、e bulk resistance due to longer lengths of current paths; correction for these differences in bulk resistance will permit comparison of results for different configurations of terminal. NOTE: Probe positioned at pin-to-board and terminal-to-board solder connection. FIGURE 1. Contact resistance. Prov
36、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SIZE CAGE CODE DWG NO. 037Z3 92024 DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH 43216-5000 A REV A 6 3.6.3 Low level circuit resistance. The low level circuit resistance shall not exceed the value specified
37、 in 3.6.2, when measured in accordance with MIL-STD-1344, method 3002, the following details shall apply: a. Method of connection: Attach current and voltage leads as shown on figure 1 (see note 3.6.2). b. Test current: 1.0 milliampere dc. c. Minimum open circuit voltage: 20 millivolts dc. d. Sample
38、 size 20 percent of connector population. 3.6.4 Insulation resistance. Unless otherwise specified the insulation resistance of unmated connectors shall not be less than 10,000 megohms initial (5,000 megohms after exposure to the humidity, see 3.8.1) when measured in accordance with MIL-STD-202, meth
39、od 302; the following details shall apply: a. Test conditions: B (500 volts dc). b. Special preparation: The connector shall not be terminated (see note). c. Points of measurement: Between adjacent and opposing contact positions for 20 percent of connector population. NOTE: Termination, the type of
40、printed wiring board and the geometry of its land areas will affect this parameter; for this reason, this sample has not been terminated. 3.6.5 Dielectric withstanding voltage. There shall be no evidence of arc-over, insulation breakdown or excessive leakage current (1 milliampere) when the unmated
41、connectors are tested in accordance with MIL-STD-202, method 301, the following details shall apply: a. Test potential: 1,250 volts rms at 60 Hz. b. Test duration: 60 seconds. c. Special preparation: The connector shall not be terminated (see note 3.6.4). d. Points of measurement: Between adjacent a
42、nd opposing contact position for 20 percent of connector population. 3.6.6 Capacitance. The capacitance between pairs of adjacent or opposing contacts in an unmated connector shall not exceed 2.0 picofarads, when measured in accordance with MIL-STD-202, method 305 the following details shall apply:
43、a. Test frequency: 100 kilohertz. b. Special preparation: The connector shall not be terminated (see note 3.6.4). c. Sample size: 20 percent of connector population. 3.7 Mechanical characteristics. 3.7.1 Contact retention. Individual contacts in the unterminated receptacle connector shall withstand
44、a minimal axial load of 1.5 pounds (0.68 kg), 1 pound (0.45 kg) for 2 a position receptacle connector, in the direction of normal pin insertion without dislodgement. 3.7.2 Terminal strength. Individual contact tails in the unterminated connector shall withstand without fracture a bend of 45 when tes
45、ted in accordance with MIL-STD-202, method 211; the following details shall apply: a. Direction of the bend: Normal to the width of the tail. b. Number of cycles: 2. c. Sample size: 10 percent of connector population. 3.7.3 Total mating force. The total force to mate the terminated connector with an
46、 appropriately populated header consisting of properly configured (see figure 2) .025 inch (0.64 mm) square pins shall not exceed the force shown in table 1 (for the appropriate contact spring thickness, if applicable) times the number of terminals. Provided by IHSNot for ResaleNo reproduction or ne
47、tworking permitted without license from IHS-,-,-SIZE CAGE CODE DWG NO. 037Z3 92024 DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH 43216-5000 A REV A 7 Inches mm .001 .005 .008 .015 .025 .150 0.03 0.13 0.20 0.38 0.06 3.81 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general i
48、nformation only. 3. Plating 30 microinches (0.76 m) minimum gold in accordance with ASTM B488, code C, type 2 class 0.76, over 50 microinches (1.27 m) minimum nickel in accordance with AMS-QQ-N-290 class 2. 4. Measured at Datum -D- with part in restrained (flat) condition. 5. Length to insure contac
49、t with female terminal interface. FIGURE 2. Mating header. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SIZE CAGE CODE DWG NO. 037Z3 92024 DEFENSE SUPPLY CENTER, COLUMBUS COLUMBUS, OH 43216-5000 A REV A 8 Inches mm .0002 .001 .015 .024 .0240 .025 .026 .400 .500 .600 0.005 0.03 0.38 0.61 0.610 0.64 0.66 10.16 12.70 15.24 DIMENSIONS INCHES Gage A To
