1、INCH-POUNDMIL-DTL-32234 16 January 2007 DETAIL SPECIFICATION CONNECTORS, ELECTRICAL, ULTRA HIGH DENSITY, MODULAR, BLADE AND FORK, EIGHT ROW, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specifi
2、cation covers the detail requirements for ultra high density connectors, surface mounted on daughter board modules or fixed backplanes. The connector contacts are densely packed with .050 inch (1.27 mm) spacing between contact centers in the same row. These connectors are intended for use in assembl
3、ies requiring very densely packaged electronic components, and are commonly used in digital applications. 1.2 Part or Identifying Number (PIN). The PIN consists of the letter M (see 3.7) the basic specification number, a forward slash, a specification sheet number, a dash, a letter for the insulator
4、 material, a letter for the EMI/RFI shield, two numbers for the termination tail length or termination tail separation, a letter for the keying pin, a letter for contact sealing (when applicable), a letter for termination tail finish (when applicable), and a letter for space class (when applicable)
5、(see 3.1) shown in the following example: Space class (1.2.7) M 32234/ 01- A E 16 DK S T S Contact sealing (see1.2.5) Termination tail finish (1.2.6) Keying pin/bushing (see 1.2.4) Termination tail length (see 1.2.3) EMI/RFI shield (see 1.2.2) Insulator material (see 1.2.1) Basic specification numbe
6、r Detailed specification sheet M prefix Comments, suggestions, or questions on this document should be addressed to Commander, Defense Supply Center Columbus, Attn: VAI, P.O. Box 3990, Columbus, Ohio, 43218-3990 or emailed to RectangularConnectordscc.dla.mil. Since contact information can change, yo
7、u may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 5935 MIL-DTL-32234 2 1.2.1 Insulator material. The PIN will utilize a single character (A, B, or C) to indicate the insulator plastic materials: A - Thermoplastic
8、, type GST-40F. B - Thermoplastic, type GDI-30F. C - Glass filled diallyl phthalate, type SDG-F or GLCP-30F. 1.2.2 EMI/RFI shield. E - EMI/RFI shield N - None included 1.2.3 Termination tail length or termination tail separation (gap). The PIN will utilize a number to identify the termination type.
9、Each specification sheet will provide a chart which will identify available termination types and an associated code letter to include in the PIN. 1.2.4 Keying pin/bushing. The PIN will utilize two characters to identify the shape of the keying pin or bushing. Each specification sheet will provide a
10、 chart, which will identify available keying types and an associated code letter. When keying pins/bushings are supplied with the connector they will be shipped loose. 1.2.5 Contact sealing. Contact sealing will be identified as follows: S - Connectors are sealed to prevent entry of cleaning fluids
11、or conformal coatings into the contact area from the termination side of the connector. N - No sealing is provided. 1.2.6 Termination tail finish. Termination plating will be identified as follows: T - Tin/lead G - Gold 1.2.7 Space class. The PIN will utilize a single character to identify space cla
12、ss connectors that have passed thermal vacuum outgassing testing. Blank - Blank for non-space applications. S - For space class. 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 documen
13、ts cited in other sections of this specification or recommended for additional information 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 t
14、his specification, whether or not they are listed. 2.2 Government documents. 2.2.1 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 ar
15、e those cited in the solicitation or contract. MIL-DTL-32234 3 FEDERAL STANDARDS FED-STD-H28 - Screw-Thread Standards for Federal Services. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-M-24519 - Molding Plastics, Electrical, Thermoplastic. MIL-PRF-5606 - Hydraulic fluid, Petroleum Base; Aircraft, Missil
16、e, and Ordnance. MIL-PRF-23699 - Lubricating Oil, Aircraft Turbine Engine, Synthetic Base, NATO Code Number O-156. MIL-PRF-87257 - Hydraulic Fluid, Fire Resistant; Low Temperature, Synthetic Hydrocarbon Base, Aircraft and Missile MIL-DTL-5541 - Chemical Conversion Coatings on Aluminum and Aluminum A
17、lloys. MIL-DTL-5624 - Turbine Fuel, Aviation, Grades JP-4, and JP-5 DEPARTMENT OF DEFENSE STANDARDS MIL-STD-202 - Electronic and Electrical Component Parts MIL-STD-790 - Standard Practice for Established Reliability and High Reliability Qualified Products List (QPL) Systems for Electrical, Electroni
18、c, and Fiber Optic Parts Specifications MIL-STD-889 - Dissimilar Metals MIL-STD-1285 - Marking of Electrical and Electronic Parts. (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or http:/assist.daps.dla.mil or from the Standardization Document Order Desk, 7
19、00 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. ASME INTERNAT
20、IONAL ASME-Y-14.5M - Dimensioning and Tolerancing (Copies of these documents are available online at http:/www.asme.org or from the ASME International, Three Park Avenue, New York, NY 10016-5990.) ASTM INTERNATIONAL ASTM A342/A342M - Standard Test Methods for Permeability of Feebly Magnetic Material
21、s ASTM A582/A582M - Standard Specification for Free-Machining Stainless Steel Bars ASTM A967 - Chemical Passivation Treatments for Stainless Steel Parts ASTM B36/B36M - Standard Specification for Brass Plate, Sheet, Strip, and Rolled Bar ASTM B194 - Standard Specification for Copper-Beryllium Alloy
22、Plate, Sheet, Strip, and Rolled Bar ASTM B241/B241M - Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube ASTM B487 - Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of a Cross Section ASTM B488 - Gold
23、 for Engineering Uses, Electrodeposited Coatings Of MIL-DTL-32234 4 ASTM B499 - Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals ASTM B567 - Standard Test Method for Measurement of Coating Thickness by the Beta Backscat
24、ter Method ASTM B568 - Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry ASTM B748 - Ball Mill Test for Friability of Abrasive Grain, Procedure for ASTM B768 - Standard Specification for Copper-Cobalt-Beryllium Alloy and Copper-Nickel-Beryllium Alloy Strip and Sheet AST
25、M D770 - Standard Specification for Isopropyl Alcohol ASTM D570 - Standard Test Method for Water Absorption of Plastics ASTM D4067 - Standard Classification System for Reinforced and filled Poly (Phenylene Sulfide) (PPS) Injection Molding and Extrusion Materials Using ASTM Methods ASTM D5138 - Stand
26、ard Specification for Liquid Crystal Polymers ASTM D5948 - Standard Specification for Molding Compounds, Thermosetting ASTM E595 - Standard Test Method for Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment ASTM G21 - Standard Practice for Determinin
27、g Resistance of Synthetic Polymeric Materials to Fungi. (Copies of these documents are available online at http:/www.astm.org or from the ASTM International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) ELECTRONIC INDUSTRIES ALLIANCE (EIA) EIA-364 - Electrical Connector/S
28、ocket Test Procedures Including Environmental Classifications EIA-364-06 - Contact Resistance Test Procedure for Electrical Connectors EIA-364-09 - Durability Test Procedure for Electrical Connectors and Contacts EIA-364-10 - Fluid Immersion for Test Procedure for Electrical Connectors and Sockets E
29、IA-364-13 - Mating and Unmating Forces Test Procedure for Electrical Connectors EIA-364-17 - Temperature Life With or Without Electrical Load Test Procedure for Electrical Connectors and Sockets EIA-364-20 - Withstanding Voltage Test Procedure for Electrical Connectors, Sockets and Coaxial Contacts.
30、 EIA-364-21 - Insulation Resistance Test Procedure for Electrical Connectors, Sockets, and Coaxial Contacts. EIA-364-23 - Low Level Contact Resistance Test Procedure for Electrical Connectors and Sockets EIA-364-26 - Salt Spray Test Procedures for Electrical Connectors, Contacts and Sockets EIA-364-
31、27 - Mechanical Shock (Specified Pulse) Test Procedures for Electrical Connectors EIA-364-28 - Vibration Test Procedure for Electrical Connectors and Sockets EIA-364-29 - Contact Retention Test Procedure for Electrical Connectors EIA-364-31 - Humidity Test Procedure for Electrical Connectors and Soc
32、kets EIA-364-32 - Thermal Shock (Temperature Cycling) Test Procedure for Electrical Connectors and Sockets EIA-364-36 - Test Procedure for Determination of Gas-Tight Characteristics for Electrical Connectors, Sockets and/or Contact Systems MIL-DTL-32234 5 EIA-364-37 - Contact Engagement and Separati
33、on Force Test Procedure for Electrical Connectors. EIA-364-66 - EMI Shielding Effectiveness Test Procedures for Electrical Connectors EIA-364-87 - Nanosecond-Event Detection for Electrical Connectors, Contacts and Sockets EIA-364-96 - Plated Through Hole Integrity Test Procedure for Electrical Conne
34、ctors EIA-557.1 - Guidance for the Selection of Critical Manufacturing Operations for Use in Implementing an SPC System for Passive Components (Copies of these documents are available online at http:/www.eia.org or from the Electronic Industries Alliance, Technology Strategy the total number of cont
35、acts to be sectioned shall be 10. b. Samples shall be viewed at magnification of 400X to resolve questionable copper thickness interfaces between the contact and printed-wiring laminate. c. Double sided printed wiring board or backplane test coupon. (1) 10 plated-through holes containing compliant c
36、omponents shall be microsectioned, 5 in the horizontal and 5 in the vertical plane, and examined for conformance to 3.4.9.6. (2) At least two different levels of hole depth shall be viewed and measurements shall be taken at the entrance to the hole and half-way down the compliant section. (3) It is
37、not mandatory that the same hole be viewed at both levels. d. Multilayer printed-wiring board or backplane test coupon. (1) 10 plated-through holes containing compliant contacts shall be microsectioned, 5 in the vertical and 5 in the horizontal planes. (2) In both the horizontal and vertical planes,
38、 the microsectioned sample shall be examined for conformance to 3.4.9.6. (3) On the vertical plane, the sample shall additionally be viewed to ensure that no copper cracks, separations between conductive interfaces, or laminate-to-copper separations have occurred. e. The 2ndand 3rdvirgin pins shall be inserted in the same hole as the 1stpin and in the same orientation.
