MDMA SERIES Microminiature connectors with removable crimp contacts ESCC 3401/077 - ESCC 3401/078 Features and Benefits Compliant with ESA specifications High performance Micropin contact system (twist pin spring male contact and tubular socket contact) Removable crimp type contacts Harnesses length flexibility Non-Outgassing Low Size Connectors Low Weight Typical Applications Space equipment Satellites harnesses and payloads Avionics / Military Specification TYPE MATING/UNMATING UNMATING WEIGHT FORCE (N MAX) FORCE (N MIN) (G) High performance Micro-miniature connectors ESA qualified, for Size 9 20 1.3 2.3 space applications. Size 15 33 2.0 3.1 Compliant to ESCC specifications 3401/077 Connectors and Size 21 47 2.9 3.9 3401/078 Removable Crimp Contacts. Size 25 55 3.5 4.4 Compatible with ESCC 3401/029 MDM Connectors, 3401/041 Size 31 69 4.3 5.2 Savers, 3401/032 Accessories and 3401/087 Backshells. Size 37 82 5.1 6.0 Suitable for use in Space, and high performance military/aerospace Size 51 147 7.1 7.3 applications: Board to Board, Board to Cable or Cable to Cable applications. Quality Level Removable contacts (Twist Pin contact technology). ESA / ESCC: code 3401 (Flying model). Sizes available: 9, 15, 21, 25, 31, 37 and 51 ways. Qualification reviewed every 2 years. Connector 9, 15, 21, 25, 31 and 37 ways, accepted wires size: Process Contact and Cable Insertion 1 wire insulated AWG24, AWG26 and AWG28 (external Wire stripping. diameter at 0.97mm max). 1 uninsulated solid wire AWG25. Cables crimping onto contacts with standard MDMA Crimping tool 2 wires insulated AWG28 (external diameter at 0.82mm max). M22520/2-01 and dedicated locators (to be ordered separately). Connector 51 ways, accepted wires size: Wires cable installed by the end user. 1 wire insulated AWG24, AWG26 and AWG28 (external Test Retention diameter at 0.97mm max). A dedicated tool is available to make the retention test of each 1 uninsulated solid wire AWG25. contacts in the connectors. Distance between 2 adjacent contacts: 1.27mm (.050 inch). Distance between 2 contacts rows: 1.09mm (.043 inch). Process Contact and Cable Extraction A dedicated tool is available to remove the contacts from the Electrical & Mechanical Characteristics connectors. CHARACTERISTIC SPECIFICATION Options Working Voltage (sea level) 150 Vrms Optional interfacial seal can be applied for female connectors (to be Rated Current AWG 24 3.5 A ordered separately). Rated Current AWG 25 2.5 A Optional captive nuts or float mounting. Rated Current AWG 26 2.5 A Rated Current AWG 28 1.5 A Packaging Contact Resistance 5 m (rated current) Individual packaging. Insulation Resistance 5000 M min Traceability associated as per ESA/ESCC specifications. Voltage Proof 600 Vrms /2.0mA (leakage current) Each MDMA connector is sold with a dust cap in individual plastic bag. Temperature range -55/+125 C Contact extraction tool has to be ordered separately. Contact Retention Force 22.25 N max www.ckswitches.com 1HOW TO ORDER CONNECTOR Our easy build-a-connector concept allows you to mix and match options to create the MDMA you need. To order, select desired option from each category and place it in the appropriate box. Pin connection with Nickel Plating Pin connection with Gold Plating ESA/ESCC Specification: 3401077 01 B MDMA Y 9 P - FO Detail Specification Number Contacts Information FO Connector without contacts (Contacts must be ordered separately) Shell Finish 01 25.4 m Ni 02 0.7 m Au over 25.4 m Ni Type of Contact P Pin (Male) S Socket (Female) Testing Level Shell Size MDMA Series 9 15 21 Fixing Option 25 Nothing: Standard (no hardware) 31 E Captive nut 37 Y Float mount 51 MATERIALS & FINISHES COMPONENT MATERIAL FINISH 01: 25.4 m electroless Nickel over Copper underlay Shell Aluminium alloy 02: 0.7 m Gold over 25.4 m electroless Nickel Insulator Liquid Crystal Polymer UL 94-V0, Glass-filled, Black Color Female Contacts Copper Alloy 1.27 m Gold over Copper underlay Male Contacts Copper Alloy 1.27 m Gold over Copper underlay Accessories (Y & E) Stainless Steel 303 type, passivated Interfacial Seals Fluorosilicone elastomer Pink color Dust Cap Polyethylene Black color, antistatic. Dimensions shown in: mm Specifications and dimensions subject to change www.ckswitches.com 2