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CMD CONNECTOR SERIES

CMD CONNECTOR SERIES
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CMD CONNECTOR SERIES

Product catalog summary
Overview of Hypertac Technology: Hypertac is a hyperboloid contact technology by Smiths Connectors, known for its reliability and performance in harsh environments. It features low insertion/extraction forces, high-density interconnect systems, long contact life, low cost of ownership, lower contact resistance, low power consumption, higher current ratings, and immunity to shock and vibration.
Scope: The CMD Connectors Family includes plug and receptacle styles with various pin/socket contact positions, conforming to MIL-C-55302 standards, featuring an offset-grid pattern and polarization for correct insertion.
Contact Terminal Types: Plug connectors are available with solder post, thru-hole, and solder tail terminals. Receptacle connectors offer similar options, including wire wrap posts for solderless connections.
Applied Documents: The connectors are designed and tested according to military standards such as MIL-C-26074, MIL-I-46058, and MIL-P-50884.
Requirements: Connector bodies are made from flame-resistant polyphenylene sulfide, with pin and socket contacts made from beryllium-copper alloy with gold plating. They are designed to withstand high temperatures, vibrations, and shocks.
Quality Assurance and Packaging: Quality assurance provisions and packaging requirements ensure connectors meet standards and are delivered in optimal condition.
Specifications:
  • Solderability: Tested at 245°C for 5 seconds according to MIL-STD-202 method 208.
  • Resistance to Soldering Heat: Complies with MIL-STD-202 method 210 condition C, at 260°C for 10 seconds.
  • Capacitance: Maximum of 2.0 pF from contact to contact.
  • Inductance: Maximum calculated inductance is 15 nH.
Intended Use: Designed for high-density electronic packaging equipment subassemblies with low-power requirements, facilitating printed wiring board-to-board or board-to-cable interconnections.
Selection Chart: Provides dimensions for various connector figures, specifying applicable plug connector body types and contact terminal styles.
Connector Styles and Ordering: Details on connector styles, contact styles, terminal styles, hardware codes, and polarization options are provided, along with a guide on ordering specific configurations.
Specifications:
  • Connectors available in multiple contact positions: 42, 82, 110, 126, 158, 174 for receptacles and 220, 236, 316 for plugs.
  • Spacing standardized at .075 inch (1.905 mm).
  • Conformance to MIL-C-55302 standards is maintained.
Procedures:
  • Ordering involves selecting from options including connector family, size, style, contact style, terminal style, hardware code, hardware polarization, and contact finishing.
  • Terminal styles include dip solder (straight and right angle) and flex circuit for straddle mount.
Norms and Standards:
  • Connectors conform to MIL-C-55302 and MIL-P-50884 standards.
  • Contact finishing involves plating and underplating as per MIL-C-55302.
Recommendations:
  • Ensure matching contact positions, hardware, and polarization for mating connectors.
  • Consult the factory for custom requests such as hot solder dipping.
Key Data from Tables:
  • Dimensions and weights for each contact position are specified in tables, with weights varying based on terminal length and guide socket/pin installation.
  • Polarization configurations are detailed on page 44.
Applications:
  • Connectors are suitable for measuring and test devices, including extender board applications.
  • Mounting patterns are provided for daughterboard and board-to-board applications.
Maximum Dimensions of Mated Connectors: Outlines maximum dimensions for mated connectors, ensuring compatibility and proper electrical engagement.
The Connector Halves Mating: Specifies maximum permissible inclination and displacement for connector halves to ensure acceptable electrical engagement.
Connectors for Measuring and Test: Describes connectors used for measuring and testing, including extender board connectors and cable assembly connectors.
How to Order: Provides a detailed guide on ordering connectors, specifying connector family, size, style, terminal style, hardware code, polarization, and contact finishing.
Card Edge Test Connector: Used for testing microelectronic devices, featuring specific contact arrangement and spacing.
Flex Circuit Soldering: Suggests temperature variations for hot bar soldering processes and emphasizes conformal coating after soldering.
Smiths Connectors Product Lines: Lists various product lines, including circular EMI/EMP filter connectors, high power and high-speed connectors, and modular/rectangular PCB spring probes.
Global Support: Provides contact information for Smiths Connectors' global support offices in the Americas, Europe, and Asia.
See more

Catalog excerpts

CMD CONNECTOR SERIES-1

CONNECTOR SERIES PCB Connectors

 Open the catalog to page 1
CMD CONNECTOR SERIES-2

Smiths Connectors offers an extensive range of superior contact technologies suitable for standard and custom solutions. Hypertac® (HYPERboloid conTACT) is the original superior performing hyperboloid contact technology designed for use in all applications and in harsh and demanding environments where high reliability and safety are critical. The inherent electrical and mechanical characteristics of the Hypertac hyperboloid contact ensures unrivalled performance in terms of reliability, number of mating cycles, low contact force and minimal contact resistance. The shape of the contact sleeve...

 Open the catalog to page 2
CMD CONNECTOR SERIES-3

smiths connectors ► Receptacle connector: 42, 82, 110, 126, 158 and 174 socket contact positions ..17

 Open the catalog to page 3
CMD CONNECTOR SERIES-4

1. SCOPE 1.1 Scope This Design covers CMD Connectors Family, plug and receptacle style, with 42, 82, 110, 126, 158, 174, 220, 236 and 316 pin or socket contact positions, conforming to MIL-C-55302. Contact arrangement is offset-grid pattern within dielectric connector body with four rows, .075 in (1.905 mm) center-to-center contact spacing in each row, and .075 in (1.905 mm) row-to-row spacing. Contact size is 0.6 mm nominal pin DIA.Polarization feature is incorporated in each connector assembly to assure correct insertion. Coding key system provides 36 possible keying combinations. There are...

 Open the catalog to page 4
CMD CONNECTOR SERIES-5

2. APPLIED DOCUMENTS 2.1 Applied documents CMD Connectors Family is designed, manufactured, tested and delivered in accordance with the documents listed below. The latest issue of the following documents, documents amendments and notices, in being on 30 June 1994 are used unless otherwise specified in this Design. MIL-C-26074 Coatings, electroless nickel requirement for. MIL-I-46058 Insulating compound, electrical (for coating printed circuit assemblies). MIL-P-50884 Printed-wiring, flexible and rigid-flex. MIL-C-55302 Connectors, printed circuit subassembly and accessories. MIL-I-81550 Insulating...

 Open the catalog to page 5
CMD CONNECTOR SERIES-6

3.3 Socket contact and contact terminal Socket contact is HYPERTAC and contact terminal types are: dip solder, (straight and right angle), wire wrappost, surface mount tail, and crimp. 3.3.1 Socket contact materials HYPERTAC springs are wiredrawn from beryllium-copper alloy per QQ-C-530, (ASTM B197). Socket contact body is screw machined from copper-alloy per QQ-B-626, (ASTM B16). Protective finishing is gold plate, over suitable underplate, as specified in MIL-C-55302. 3.3.2 Dip solder, (straight and right angle), wire wrappost, and crimp socket contact terminals are screw machined, one-piece...

 Open the catalog to page 6
CMD CONNECTOR SERIES-7

3.6 CMD Connectors Family requirements are: - contact engagement and separation forces: maximum engagement force =100 g (3.53 oz); minimum separation force =14 g (.49 oz); - connector mating and unmating forces: maximum mating force =60 g (2.12 oz) multiplied by number of contacts;minimum unmating force =20 g (.71 oz) multiplied by number of contacts; - contact current rating: the connector may have any combination of current flow and ambient temperature provided the contact or connector temperature does not exceed 125 °C. If mated plug and receptacle connectors are both equipped with dip solder,...

 Open the catalog to page 7
CMD CONNECTOR SERIES-8

smiths connectorsSELECTION CHART B++ + + + + + + + • ®+ + + + + + + + © \vy Connector figure (mating face) •+++++++++++++++++++++++++++++++++++++• •+++++++++++++++++++++++++++++++++++++• •+++++++++++++++++++++++++++++++++++++• 1} •+++++++++++++++++++++++++++++++++++++• plug connector body equipped with dip solder, straight thru, contact terminal. plug connector body equipped with all the other contact terminal styles.

 Open the catalog to page 8
CMD CONNECTOR SERIES-9

smiths connectors Contact terminal types available are: Contact positions Connector style Dip solder Plug connector pin contacts equipped (Straight thru) Yes (Right angle) Yes Surface Wire mount wrap tail post Check Firm 42 Receptacle connector socket contacts equipped Check Firm Plug connector pin contacts equipped Check Firm 82 Receptacle connector socket contacts equipped Check Firm Plug connector pin contacts equipped 110 Receptacle connector socket contacts equipped Plug connector pin contacts equipped Check Firm 126 Receptacle connector socket contacts equipped Check Firm Plug...

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CMD CONNECTOR SERIES-10

CMD PLUG CONNECTOR: 42, 82, 110, 126, 158 AND 174 PIN CONTACT POSITIONS PLUG CONNECTOR: 42, 82, 110, 126, 158 and 174 PIN CONTACT POSITIONS, .075 INCH SPACING (1.905 mm), DIP SOLDER (RIGHT ANGLE) TERMINAL STYLE A max B D-shaped guide pins MOUNTING PATTERN, DAUGHTERBOARD APPLICATION, (RECOMMENDED PCB HOLE CONFIGURATION) COMPONENT SIDE C 5.08 Last hole position 4.00 Last contact posi

 Open the catalog to page 10
CMD CONNECTOR SERIES-11

smiths connectorsPLUG CONNECTOR: 42, 82, 110, 126, 158 AND 174 PIN CONTACT POSITIONS TABLE I TABLE II Dimensions in width 1. Dimensions for user installation purpose only. 3. Dimensions in width of these connectors are specified in the table I of this page. 4. Materials, finishes and connectors requirements are described into this catalog. Hot solder dipping,as dip solder terminal end finishing, is available at Customer request, (please consult the Factory). 5. These plug connectors are conforming to MIL-C-55302. 6. These plug connectors mate CMD***EF****H receptacle connectors, (see pages...

 Open the catalog to page 11
CMD CONNECTOR SERIES-12

1 connector family 2 connector size 5 contact terminal style Dip solder, right angle, with: A .109 inch (2.76 mm) long dip Y D-shaped guide pins P universal coupling guide pins (for test type connectors) 0 0 When D-shaped guide pins are installed in the 01 polarized position, (see polarization configuration chart on page 44), without Loctite 242 applied. 0 1 to 3 6 When D-shaped guide pins are installed in the proper polarized position and Loctite 242 is applied to the threads, (see polarization configuration chart on page 44). 3 7 When universal coupling guide pins, (for test type connectors),...

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CMD CONNECTOR SERIES-13

CMD PLUG CONNECTOR: 42, 82, 110, 126, 158 and 174 PIN CONTACT POSITIONS PLUG CONNECTOR: 42, 82, 110, 126, 158 and 174 PIN CONTACT POSITIONS, .075 INCH SPACING (1.905 mm), DIP SOLDER (STRAIGHT) TERMINAL STYLE A max B Last contact position D-shaped guide pins MOUNTING PATTERN, IN PARALLEL ARRANGEMENT BOARD-TO-BOARD CONNECTION, (RECOMMENDED PCB HOLE CONFIGURATION) COMPONENT SIDE Ø 0.70 min = LAST HOLE POSITION

 Open the catalog to page 13

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