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Features/Benefits • High performance Micropin™ contact system (“twist pin” spring male contact and tubular socket contact) • Non removable crimp type contacts • The Connectors are supplied with the Terminations or Cables installed in factory • MDM Connector layout: 9, 15, 21, 25, 31, 37, 51 cavities • MDM contact centers: 1,27 (.050) • Distance between: - 2 adjacent contacts: 1,27 (.050) - 2 contact rows: 1,09 (.043) • Non-magnetic • Non-outgassing • Moisture and humidity seal between contacts and between contacts and shell, provided by compression interfacial seal Typical Applications • Low Size Connectors • Low Weight • Satellites harnesses and payloads High performance Microminiature connectors, ESA qualified, for space applications. Suitable for Board-to Board, Board-to Cable or Cable-to Cable applications. Space/High reliability MDM connectors meet stringent tests for outgassing and residual magnetism and are suitable for use in space, medical, and high performance military/aerospace applications. MDM connectors meet the performance of the ESCC 3401 and MIL-PRF-83513 Specifications and the dimensional requirements of the ESCC 3401/031 Detail Specification. Dimensions are shown in mm (inch) Dimensions subject to change
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How to order - ESA quality level Description (example): 340102901B 25PFR112F ESCC Detail Specification number Variant: Shell finish - 01: Electroless Nickel (Finish A174) 02: Gold over electroless Nickel (Finish FR172) Testing Level- Level B (Standard: B3 = LAT3) Shell Size: Number of contacts- P: Pin (Male contact) S: Socket (Female contact) Mounting No code: No hardware E: Captive Nut option (Not available with FR136, FR136A, FR139 terminations) F: Float Mount option (Not available with FR136, FR136A, FR139 terminations) - Termination Type FR112: Harness type, AWG26, length 508,00...
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How to order - FR022 quality level Description (example): MDM-25PH038F-A174-FR022 Microminiature connector, MDM series MDM Quality Level (Connector Specification CS FR022) (Commercial Space Grade) Shell Size: Number of contacts 9 15 21 25 31 37 51 Contact Type- P: Pin (Male contact) S: Socket (Female contact) Note: Connectors supplied with dust caps (not available separately) Other configurations available on request, consult factory. CDRI with description MDM-115288-xxxx Shell finish A174: Electroless Nickel FR172: Gold over electroless Nickel Mounting B: No hardware E: Captive Nut option...
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3401-029 Microminiature MDM Connectors Materials and Finishes Shells Insulators Aluminium alloy Finish A174: 25,4 µm min. (1000 µin min.) electroless Nickel over Copper underlay Finish FR172: 2,54 µm min. (100 µin min.) Gold over 25,4 µm min. (1000 µin min.) electroless Nickel LCP (Liquid Crystal Polymer) thermoplastic material, UL 94-V0, glass-filled, black color Female contacts Copper alloy / Finish: 1,27 µm (50 µin) min. Gold over Copper underlay Male contacts Copper alloy / Finish: 1,27 µm (50 µin) min. Gold over Copper underlay Diallylphtalate thermoset material, UL 94-VO,...
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Operating Temperature range Storage Temperature range Working Voltage (between contacts and contact and shell) Rated Current Insulation Resistance (500 V DC) Voltage Proof Solid uninsulated Wire AWG 26 Wire AWG 28 Wire 600 Vrms / 2.0 mA max. leakage current Contact Retention in insert 22,25 N max. / No contact axial displacement allowed Engagement / Separation Forces (Male Contacts) Gauge Fixture Inner diameter Separation Force (N min.) Shell Size 9 15 21 Mating / Unmating Forces 25 Mechanical Endurance 500 cycles mating/unmating Contact Resistance Low level current (10 mA / 20...
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3401-029 Microminiature MDM Connectors Contact Design The high-performance and reliable contact characteristics are obtained by the MicropinTM contact system. The flexible “twist-pin” spring contact consists of 7 strands of 0,127 (.005) diameter beryllium copper wire helically wound around a core of 3 strands 0,09 (.0035) diameter soft copper wire. This wire bundle is crimped into a sleeve at one end. The other end is terminated with a hemispherically shaped weld. The wire bundle is compressed to create a bulge with a diameter slightly larger than the socket inside diameter. The pin...
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L max. Termination Length: see page 8 Dimensions are shown in mm (inch) Dimensions subject to change
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Dimensions are shown in mm (inch) Dimensions subject to change
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Dimensions are shown in mm (inch) Dimensions subject to change
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Front Shell dimensions: see page 93 51 Shell Size Dimensions are shown in mm (inch) Dimensions subject to change
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Shell Size Dimensions are shown in mm (inch) Dimensions subject to change
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Shell Size A max. Dimensions are shown in mm (inch) Dimensions subject to change
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ContactsPlug (Male Contact) Insulator Receptacle (Female Contact) Min. Max. L1 0,25 (.010)_0,91 (.036) Dimensions are shown in mm (inch) Dimensions subject to change www.ck-components.com Rev. 23APR13
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Front view of Plugs (use mirror view for Receptacle) Rear Shell A Note: Front and Rear Mounting accommodate 2-56 UNC-2A screws. Dimensions are shown in mm (inch) Dimensions subject to change
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3401-029 Microminiature MDM Connectors PCB Layout / 90° bent PCB Terminations (Size 9 to 37) Dimensions are shown in mm (inch) Dimensions subject to change
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Dimensions Layout / 90° bent PCB Shell Size 9 15 21 25 31 37 51 9 Narrow Dimensions Layout / Straight PCB Dimensions are shown in mm (inch) Dimensions subject to change
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PCB Layout / Straight PCB Terminations (Size 9 to 37) 9 Contacts 15 Contacts 21 Contacts 25 Contacts 31 Contacts 37 Contacts Dimensions: See page 95 PCB Layout for termination FR116 / L2 identically with insulator layout 2 adjacent contacts: 1,27 mm (.050) 2 contact rows: 1,09 (.043) Dimensions are shown in mm (inch) Dimensions subject to change
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Dimensions are shown in mm (inch) Dimensions subject to change
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