mdma - connectors, electrical, rectangular, microminiature with removable crimp contacts compliant with esa/escc specifications 3401/077 for connectors and 3401/078 for contacts dimensions shown in : mm (inch) specifications and dimensions subject to change www.ck-components.com 1 features/benefits ? compliant with esa specifications. ? removable contacts ? harnesses length flexibility typical applications ? space equipment ? avionics / military ? industrials applications specification compliant to escc specifications 3401/077 connectors and 3401/078 removable crimp contacts. compatible with mdm escc 3401/029, savers 3401/041 and accessories 3401/032. pin and sockets arrangements available. size available : 9, 15 ,21 , 25 , 31 and 37 ways crimp - removable contacts. accepted wires size : insulated awg 26 and awg 28. twist pin contacts technology. distance between 2 adjacent contacts : 1.27mm (.050 inch) distance between 2 contacts rows : 1.09mm (.043 inch) mechanical type mating force (n.max) contact retention force (n.max) max weight (g)* size 9 20 22.25 2 size 15 33 22.25 2.6 size 21 47 22.25 3.2 size 25 55 22.25 3.6 size 31 69 22.25 4.2 size 37 82 22.25 4.8 * weights without cables, floating eyelets captive nuts and contacts electrical working voltage (sea level) : 150 vrms rated current awg 26 2.5 a rated current awg 28 1.5a temperature range operating temperature range -55 to +125 c storage temperature range -65 to +125 c other features are available on esa/escc specifications. quality level esa / escc : code 3401 (flying model) (qualification reviewed every 2 years) process contact and cable insertion wires stripping cables crimping onto contacts with standard m22520/2-01 crimp tool and dedicated locators (to be ordered separately) wires cable installed by the end user process contact and cable extraction a dedicated tool is shipped with each connector to remove the contacts from the connectors options optional interfacial seal can be applied for female connectors (to be ordered separately) optional captive nuts or float mounting (consult factory) packaging individual packaging and traceability associated as per esa/escc specifications each mdma connector is sold with a contact extraction tool and a dust cap in individual plastic bag
mdma - connectors, electrical, rectangular, microminiature with removable crimp contacts compliant with esa/escc specifications 3401/077 for connectors and 3401/078 for contacts dimensions shown in : mm (inch) specifications and dimensions subject to change www.ck-components.com 2 how to order : connectors : 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. for any part number different from those listed above, please consult your local c&k components representative. 3401 077 01b 9 p y fo contacts : contact description and c&k part number : description : part number : pin contact 340107801b C331-8752-000H socket contact 340107802b c252-8838-000h interfacials seal, locators and additional extraction tool : description : part number : description locator pin part number : 9s 340103212b c115373-0050c ck-mdma-p c115373-0001 15s 340103213b c115373-0051c description locator skt part number : 21s 340103214b c115373-0052c ck-mdma-s c115373-0002 25 s 340103215b c115373-0053c 31s 340103216b c115373-0054c description extraction tool part number : 37s 340103217b c115373-0055c mdma-115373 c115373-0000 3401 078 01b 3401 032 12b escc 3401 description type variants : 01b : nickel finish on shell (a174) 02b : gold over nickel on shell ( fr172) contact arrangement : 9, 15, 21, 25, 37 mounting type : blank : standard y : float mount e : captive nut p : pin contacts s : socket contacts modification code : f0 : connector without contacts (contacts must be ordered separately) escc 3401 description 01b : pin contact 02b : socket contact escc 3401 description variants
mdma - connectors, electrical, rectangular, microminiature with removable crimp contacts compliant with esa/escc specifications 3401/077 for connectors and 3401/078 for contacts dimensions shown in : mm (inch) specifications and dimensions subject to change www.ck-components.com 3 connectors description and c&k part-numbers : mdma plug or receptacle with nickel finish on shell (a174) mdma plug or receptacle with gold finish on shell (fr172) mdma without contact (fo) description size standard floating (y) captive nut (e) 340107702b 9p c115373-2050c c115373-2062c c115373-2074c 340107702b 9s c115373-2051c c115373-2063c c115373-2075c 340107702b 15p c115373-2052c c115373-2064c c115373-2076c 340107702b 15s c115373-2053c c115373-2065c c115373-2077c 340107702b 21p c115373-2054c c115373-2066c c115373-2078c 340107702b 21s c115373-2055c c115373-2067c c115373-2079c 340107702b 25p c115373-2056c c115373-2068c c115373-2080c 340107702b 25s c115373-2057c c115373-2069c c115373-2081c 340107702b 31p c115373-2058c c115373-2070c c115373-2082c 340107702b 31s c115373-2059c c115373-2071c c115373-2083c 340107702b 37p c115373-2060c c115373-2072c c115373-2084c 340107702b 37s c115373-2061c c115373-2073c c115373-2085c materials and finishes : shells aluminium alloy finish a174 : 25,4 m min. (1000 in min.) electroless nickel over copper underlay finish fr172 : 2,54 m min. (100 in min.) gold over 25,4 m min. (1000 in min.) electroless nickel insulators lcp (liquid crystal polymer) thermoplastic material, ul 94-v0, glass-filled, black color female contacts copper alloy / finish : 1,27 m (50 in) min. gold over copper underlay male contacts copper alloy / finish : 1,27 m (50 in) min. gold over copper underlay interfacial seals fluorosilicone elastomere, pink color accessories (y or e) stainless steel type 303, passivated dust caps polyethylene thermoplastic material, transparent pink color m dma without contact (fo) description size standard floating (y) captive nut (e) 340107701b 9s c115373-2001c c115373-2013c c115373-2025c 340107701b 15p c115373-2002c c115373-2014c c115373-2026c 340107701b 15s c115373-2003c c115373-2015c c115373-2027c 340107701b 21p c115373-2004c c115373-2016c c115373-2028c 340107701b 21s c115373-2005c c115373-2017c c115373-2029c 340107701b 25p c115373-2006c c115373-2018c c115373-2030c 340107701b 25s c115373-2007c c115373-2019c c115373-2031c 340107701b 31p c115373-2008c c115373-2020c c115373-2032c 340107701b 31s c115373-2009c c115373-2021c c115373-2033c 340107701b 37p c115373-2010c c115373-2022c c115373-2034c 340107701b 37s c115373-2011c c115373-2023c c115373-2035c
mdma - connectors, electrical, rectangular, microminiature with removable crimp contacts compliant with esa/escc specifications 3401/077 for connectors and 3401/078 for contacts dimensions shown in : mm (inch) specifications and dimensions subject to change www.ck-components.com 4 physical dimensions : ? connectors mdma plug (male contacts) ? connectors mdma receptacle (female contacts) ? contacts male and female
mdma - connectors, electrical, rectangular, microminiature with removable crimp contacts compliant with esa/escc specifications 3401/077 for connectors and 3401/078 for contacts dimensions shown in : mm (inch) specifications and dimensions subject to change www.ck-components.com 5 process contact and cable insertion : ? wire stripping : cut wires to length and strip insulation per above illustration. check for broken or frayed wires . recommended wire wire trim length 3901 013 01b : ptfe insulated wire awg 28 3901 013 02b : ptfe insulated wire awg 26 3901 002 61b : polyimide insulated wire awg 28 3901 002 56b : polyimide insulated wire awg 26 m = insulation clearance * c&k recommended value ? cable crimping - 1 - insert wire onto contact body and insert the unit into the m22520/2-01 crimping tool (selector position 2) with the dedicated locator (to be ordered separately) - 2 - crimp contact to wire and inspect crimp. ? contact insertion : insert contact with wire into cavity of the rear insulator until a positive stop is felt. inspect insertion. to be sure contact is locked securely, pull back lightly on wire. repeat for balance of contacts working row by row across the insulator. ? interfacial seal insertion (optional for receptacle connector only): l m 1,9 * 0 2,4 0,550,25 dedicated locators for male contact : ck-mdma-p ( p/n: c115373-0001) for female contact : ck-mdma-s (p/n: c115373-0002) good position for interfacial seal
mdma - connectors, electrical, rectangular, microminiature with removable crimp contacts compliant with esa/escc specifications 3401/077 for connectors and 3401/078 for contacts dimensions shown in : mm (inch) specifications and dimensions subject to change www.ck-components.com 6 process contact and cable extraction : how to extract contacts in the first row of connector : - 1 - place wire into extraction tool tip mdma-115373 - 2 - insert tool tip into contact cavity until tip bottoms against contact shoulder, releasing tine. hold wire against tool with finger and remove tool and contact. repeat for balance of contacts. how to extract contacts in the second row of connector : same process that first row except extraction tool is rotate 180 be careful to put extraction tool in the good position !! (example for the first row) : first row second row
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