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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 offered by Smiths Connectors, known for its reliability and performance in harsh environments. It provides benefits such as low insertion/extraction forces, high-density interconnect systems, long contact life, low cost of ownership, lower contact resistance, low power consumption, higher current ratings, maximum contact performance, 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. They feature an offset-grid pattern and a polarization feature for correct insertion.
Contact Terminal Types: Plug connectors are available with solder post, thru-hole, and solder tail terminals. Receptacle connectors offer solder post, wire wrap post, and solder tail terminals. Special connectors for measuring and test devices are also available.
Applied Documents: The connectors are designed and tested according to several military standards, including MIL-C-26074, MIL-I-46058, and MIL-P-50884.
Requirements: The connector body is made from flame-resistant polyphenylene sulfide, with pin and socket contacts made from beryllium-copper alloy with gold plating. They meet mechanical and electrical requirements such as engagement and separation forces, current ratings, contact resistance, temperature range, dielectric withstanding voltage, insulation resistance, contact life, vibration, and shock resistance.
Quality Assurance and Packaging: Quality assurance provisions and packaging requirements ensure the connectors meet specified standards and are delivered in optimal condition.
Specifications: Solderability is tested at 245°C for 5 seconds, resistance to soldering heat at 260°C for 10 seconds, with maximum capacitance of 2.0 pF and inductance of 15 nH.
Quality Assurance Provisions: The CMD Connectors Family is inspected using data values from Section 3 and test methods in accordance with MIL-C-55302.
Packaging: Packaging follows "CONNEI's Packaging Procedures" to ensure protection against damage during shipment.
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, applicable to different plug connector body types.
Connector Styles and Contact Terminal Types: Details on available contact terminal types for plug and receptacle connectors, including dip solder, surface mount tail, and wire wrap post.
How to Order: Instructions on ordering connectors, specifying connector family, size, style, contact style, terminal style, hardware code, polarization, and contact finishing.
Connector Dimensions and Weights: Tables provide dimensions and weights for connectors with different contact positions, conforming to MIL-C-55302 standards.
Overview: Specifications and ordering information for MIL-C-55302 compliant connectors with 220, 236, and 316 pin/socket contact positions, designed for military applications.
Specifications: Contact positions available in 220, 236, and 316 positions, with spacing of 0.075 inch and board package thickness ranging from 1.00 to 4.20 mm.
Connector Types: Plug connectors feature pin contacts with various terminal styles, while receptacle connectors feature socket contacts with dip solder and wire wrap post terminal styles.
Dimensions and Weight: Dimensions are provided in millimeters, with weights varying according to contact positions and terminal lengths.
Mounting Patterns: Detailed mounting patterns for daughterboard and motherboard applications, with recommended panel cut-outs and PCB hole configurations.
Ordering Information: Connectors are ordered based on family, size, style, contact style, terminal style, hardware code, polarization, and contact finishing, with detailed polarization configurations.
Additional Notes: Connectors are suitable for measuring and test devices, with specific applications indicated in the document. Materials, finishes, and additional requirements are described in the catalog.
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Catalog excerpts

CMD CONNECTOR SERIES-1

CONNECTOR SERIES PCB Connectors

 Open the catalog to page 1
CMD CONNECTOR SERIES-2

HYPERBOLOID TECHNOLOGY 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...

 Open the catalog to page 2
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

BODY CONNECTOR DIMENSIONS Connector figure (mating face) Applicable to plug connector body equipped with dip solder, straight thru, contact terminal. Applicable to plug connector body equipped with all the other contact terminal styles.

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CMD CONNECTOR SERIES-9

Contact terminal types available are: Contact positions Connector style Surface mount tail Wire wrap post (Straight thru) (Right angle) Plug connector pin contacts equipped Check Firm Receptacle connector socket contacts equipped Check Firm Plug connector pin contacts equipped Check Firm Receptacle connector socket contacts equipped Check Firm Plug connector pin contacts equipped Receptacle connector socket contacts equipped Plug connector pin contacts equipped Check Firm Receptacle connector socket contacts equipped Check Firm Plug connector pin contacts equipped Receptacle connector socket...

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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 Ø 0.70 min Last hole position 4.00 Last contact position

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CMD CONNECTOR SERIES-11

CMD PLUG CONNECTOR: 42, 82, 110, 126, 158 and 174 PIN CONTACT POSITIONS table I Weight* in grams (with g=9.81 m/s2) Contact positions Contact positions * According to contacts terminal length, and with D-shaped guide pins installed NOTES 1. Dimensions for user installation purpose only. 2. Dimensions are in millimeters. 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...

 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),...

 Open the catalog to page 12
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 4.00 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
CMD CONNECTOR SERIES-14

CMD PLUG CONNECTOR: 42, 82, 110, 126, 158 and 174 CONTACT POSITIONS table I Weight* in grams (with g=9.81 m/s2) Contact positions Contact positions * According to contacts terminal length, and with D-shaped guide pins installed NOTES 1. Dimensions for User installation purpose only. 2. Dimensions are in millimeters. 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...

 Open the catalog to page 14

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.