3401-029 Microminiature MDM Connectors
20Pages

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

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...

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...

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,...

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...

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...

L max. Termination Length: see page 8 Dimensions are shown in mm (inch) Dimensions subject to change

Dimensions are shown in mm (inch) Dimensions subject to change

Dimensions are shown in mm (inch) Dimensions subject to change

Front Shell dimensions: see page 93 51 Shell Size Dimensions are shown in mm (inch) Dimensions subject to change

Shell Size Dimensions are shown in mm (inch) Dimensions subject to change

Shell Size A max. Dimensions are shown in mm (inch) Dimensions subject to change

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

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

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

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

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

Dimensions are shown in mm (inch) Dimensions subject to change