MDMA - Connectors, Electrical, Rectangular, Microminiature with Removable crimp contacts compliant with ESA/ESCC specifications 3401/077 for Connectors and 3401/078 for Contacts
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)
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
Mechanical
Max Contact Weight retention force (N.max) (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 Type Mating force (N.max)
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
Electrical
Working Voltage (Sea level) : Rated Current AWG 26 Rated Current AWG 28 150 Vrms 2.5 A 1.5A
Temperature Range
Operating Temperature range Storage Temperature Range -55 to +125 ° C -65 to +125 ° C
Other features are available on ESA/ESCC specifications.
Dimensions shown in : mm (inch) Specifications and dimensions subject to change
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MDMA - Connectors, Electrical, Rectangular, Microminiature with Removable crimp contacts compliant with ESA/ESCC specifications 3401/077 for Connectors and 3401/078 for Contacts
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
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
01B
9
P
Y
FO
Modification code : F0 : Connector without contacts (Contacts must be ordered separately) Mounting type : Blank : Standard Y : Float mount E : Captive nut P : Pin contacts S : Socket contacts
CONTACTS :
3401 078
ESCC 3401 Description
01B
01B : Pin contact
02B : Socket contact
CONTACT DESCRIPTION and C&K PART NUMBER :
Description : Pin Contact Socket Contact 340107801B 340107802B Part Number : C331-8752-000H C252-8838-000H
INTERFACIALS SEAL, LOCATORS AND ADDITIONAL EXTRACTION TOOL :
ESCC 3401 Description
3401 032
Description : 340103212B 340103213B 340103214B 340103215B 340103216B 340103217B
12B
Part Number : C115373-0050C C115373-0051C C115373-0052C C115373-0053C C115373-0054C C115373-0055C
Variants
Description Locator Pin CK-MDMA-P Description Locator Skt CK-MDMA-S Description extraction tool MDMA-115373
Part Number : C115373-0001 Part Number : C115373-0002 Part Number : C115373-0000
9S 15S 21S 25 S 31S 37S
Dimensions shown in : mm (inch) Specifications and dimensions subject to change
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MDMA - Connectors, Electrical, Rectangular, Microminiature with Removable crimp contacts compliant with ESA/ESCC specifications 3401/077 for Connectors and 3401/078 for Contacts
Connectors Description and C&K Part-Numbers :
MDMA Plug or Receptacle with Nickel Finish on Shell (A174)
MDMA without contact (FO)
Description 340107701B Size 9S standard Floating (Y) captive nut (E) C115373-2001C C115373-2013C C115373-2025C C115373-2002C C115373-2014C C115373-2026C C115373-2003C C115373-2015C C115373-2027C C115373-2004C C115373-2016C C115373-2028C C115373-2005C C115373-2017C C115373-2029C C115373-2006C C115373-2018C C115373-2030C C115373-2007C C115373-2019C C115373-2031C C115373-2008C C115373-2020C C115373-2032C C115373-2009C C115373-2021C C115373-2033C C115373-2010C C115373-2022C C115373-2034C C115373-2011C C115373-2023C C115373-2035C
340107701B 15P 340107701B 15S 340107701B 21P 340107701B 21S 340107701B 25P 340107701B 25S 340107701B 31P 340107701B 31S 340107701B 37P 340107701B 37S
MDMA Plug or Receptacle with Gold Finish on Shell (FR172)
MDMA without contact (FO)
Description Size 340107702B 340107702B 9P 9S standard Floating (Y) captive nut (E) C115373-2050C C115373-2062C C115373-2074C C115373-2051C C115373-2063C C115373-2075C C115373-2052C C115373-2064C C115373-2076C C115373-2053C C115373-2065C C115373-2077C C115373-2054C C115373-2066C C115373-2078C C115373-2055C C115373-2067C C115373-2079C C115373-2056C C115373-2068C C115373-2080C C115373-2057C C115373-2069C C115373-2081C C115373-2058C C115373-2070C C115373-2082C C115373-2059C C115373-2071C C115373-2083C C115373-2060C C115373-2072C C115373-2084C C115373-2061C C115373-2073C C115373-2085C
340107702B 15P 340107702B 15S 340107702B 21P 340107702B 21S 340107702B 25P 340107702B 25S 340107702B 31P 340107702B 31S 340107702B 37P 340107702B 37S
Materials and finishes :
Shells Insulators Female contacts Male contacts Interfacial Seals Accessories (Y or E) Dust Caps 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 Copper alloy / Finish : 1,27 µm (50 µin) min. Gold over Copper underlay Copper alloy / Finish : 1,27 µm (50 µin) min. Gold over Copper underlay Fluorosilicone elastomere, pink color Stainless Steel type 303, passivated Polyethylene thermoplastic material, transparent pink color
Dimensions shown in : mm (inch) Specifications and dimensions subject to change
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MDMA - Connectors, Electrical, Rectangular, Microminiature with Removable crimp contacts compliant with ESA/ESCC specifications 3401/077 for Connectors and 3401/078 for Contacts
Physical Dimensions :
• Connectors MDMA Plug (Male contacts)
• Connectors MDMA Receptacle (Female contacts)
• Contacts Male and Female
Dimensions shown in : mm (inch) Specifications and dimensions subject to change
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MDMA - Connectors, Electrical, Rectangular, Microminiature with Removable crimp contacts compliant with ESA/ESCC specifications 3401/077 for Connectors and 3401/078 for Contacts
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 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 Wire trim length L 1,9 * 2,4 M 0 0,55±0,25
* 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)
DEDICATED LOCATORS For Male Contact : CK-MDMA-P (P/N: C115373-0001)
For Female Contact : CK-MDMA-S (P/N: C115373-0002)
- 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):
Good position for interfacial seal
Dimensions shown in : mm (inch) Specifications and dimensions subject to change
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MDMA - Connectors, Electrical, Rectangular, Microminiature with Removable crimp contacts compliant with ESA/ESCC specifications 3401/077 for Connectors and 3401/078 for Contacts
Process Contact and Cable Extraction : ●●● How to extract contacts in the first row of connector :
First row
- 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 :
Second row
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) :
Dimensions shown in : mm (inch) Specifications and dimensions subject to change
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