MDMA with Removable Crimp Contacts
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
Typical Applications
• Compliant with ESA
specifications
• Space equipments
• Removable contacts
• Industrials applications
• Avionics / Military
• Harnesses length flexibility
Quality Level
Specification
ESA / ESCC: code 3401 (Flying model)
(Qualification reviewed every 2 years)
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.
Sizes available: 9, 15 ,21 , 25 , 31 and 37 ways
Removable contacts (except with 2 wires AWG 28)
Accepted wires size: 1 wire insulated AWG 24, AWG 26 and AWG 28
2 wires insulated AWG 28
Twist Pin contact technology.
Distance between 2 adjacent contacts: 1.27mm (.050 inch)
Distance between 2 contacts rows: 1.09mm (.043 inch)
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
Test retention
A dedicated tool is available to make the retention test of each
contacts in the connectors
Process contact and cable extraction
A dedicated tool is shipped with each connector to remove the
contacts from the connectors
Mechanical
Contact
Max
retention force
Weight
(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)
Electrical
Working Voltage (Sea level):
Rated Current AWG 24
Rated Current AWG 26
Rated Current AWG 28
Temperature Range
Options
Optional interfacial seal can be applied for female connectors
(to be ordered separately)
Optional captive nuts or float mounting (consult factory)
Optional grommet can be supplied
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
150 Vrms
3.5 A
2.5 A
1.5A
Operating Temperature range
-55 to +125 °C
Storage Temperature Range
-65 to +125 °C
Other features are available on ESA/ESCC specifications.
Dimensions are shown in mm (inch)
Dimensions subject to change
B3-1
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MDMA with Removable Crimp Contacts
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
01B
9
P
Y
ESCC 3401 Description
FO
Modification code:
F0: Connector without contacts
(Contacts must be ordered separately)
Type variants:
01B: Nickel finish on Shell (A174)
02B: Gold over Nickel on shell ( FR172)
Mounting type:
Blank: Standard
Y: Float mount
E: Captive nut
Contact arrangement:
9, 15, 21, 25, 37
P: Pin contacts
S: Socket contacts
CONTACTS:
3401 078
01B
01B: Pin contact
ESCC 3401 Description
02B: Socket contact
CONTACT DESCRIPTION and C&K PART NUMBER:
Description:
Pin Contact
Socket Contact
340107801B
C331-8752-000H
340107803B
C331-8754-000H
340107802B
Pin Contact
Socket Contact
Part Number:
340107804B
C252-8838-000H
C252-8844-000H
Used for:
1x AWG 26 or 1x AWG28
1x AWG 26 or 1x AWG28
1x AWG 24 or 2x AWG28
1x AWG 24 or 2x AWG28
INTERFACIALS SEAL, LOCATORS AND ADDITIONAL EXTRACTION TOOL:
ESCC 3401 Description
9S
15S
21S
25S
31S
37S
3401 032
12B
Variants
Description:
Part Number:
Description Locator Pin
Part Number:
340103212B
C115373-0050C
CK-MDMA-P
C115373-0001
340103213B
C115373-0051C
340103214B
C115373-0052C
CK-MDMA-S
C115373-0002
340103215B
C115373-0053C
340103216B
C115373-0054C
340103217B
C115373-0055C
Description Locator Skt
Part Number:
Description extraction tool
Part Number:
MDMA-115373
C115373-0000
Dimensions are shown in mm (inch)
Dimensions subject to change
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MDMA with Removable Crimp Contacts
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)
standard
Floating (Y)
captive nut (E)
9S
C115373-2001C
C115373-2013C
C115373-2025C
340107701B
15S
C115373-2003C
C115373-2015C
C115373-2027C
340107701B
21S
340107701B
25S
340107701B
31S
340107701B
37S
Description
Size
standard
Floating (Y)
captive nut (E)
9P
C115373-2050C
C115373-2062C
C115373-2074C
15P
C115373-2052C
C115373-2064C
C115373-2076C
Description
340107701B
340107701B
340107701B
340107701B
340107701B
340107701B
Size
15P
21P
25P
31P
37P
C115373-2002C
C115373-2004C
C115373-2005C
C115373-2006C
C115373-2007C
C115373-2008C
C115373-2009C
C115373-2010C
C115373-2016C
C115373-2017C
C115373-2018C
C115373-2019C
C115373-2020C
C115373-2021C
C115373-2022C
340107702B
340107702B
9S
340107702B
15S
340107702B
21S
340107702B
25S
340107702B
31S
340107702B
37S
340107702B
340107702B
340107702B
340107702B
21P
25P
31P
37P
C115373-2023C
C115373-2026C
C115373-2028C
C115373-2029C
C115373-2030C
C115373-2031C
C115373-2032C
C115373-2033C
C115373-2034C
C115373-2035C
MDMA Plug or Receptacle with Gold Finish on Shell (FR172)
340107702B
C115373-2011C
C115373-2014C
MDMA without contact (FO)
C115373-2051C
C115373-2053C
C115373-2054C
C115373-2055C
C115373-2056C
C115373-2057C
C115373-2058C
C115373-2059C
C115373-2060C
C115373-2061C
C115373-2063C
C115373-2065C
C115373-2066C
C115373-2067C
C115373-2068C
C115373-2069C
C115373-2070C
C115373-2071C
C115373-2072C
C115373-2073C
C115373-2075C
C115373-2077C
C115373-2078C
C115373-2079C
C115373-2080C
C115373-2081C
C115373-2082C
C115373-2083C
C115373-2084C
C115373-2085C
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
Interfacial Seals
Accessories (Y or E)
Dust Caps
Fluorosilicone elastomere, pink color
Stainless Steel type 303, passivated
Polyethylene thermoplastic material, transparent pink color
Dimensions are shown in mm (inch)
Dimensions subject to change
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MDMA with Removable Crimp Contacts
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 are shown in mm (inch)
Dimensions subject to change
B3-4
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Rev. 23APR13
5/13/13 6:32 PM
MDMA with Removable Crimp Contacts
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
Wire trim length
3901 013 01B: PTFE Insulated wire AWG 28
3901 013 02B: PTFE Insulated wire AWG 26
3901 013 03B: PTFE Insulated Wire AWG 24
3901 002 61B: POLYIMIDE Insulated wire AWG 28
3901 002 56B: POLYIMIDE Insulated wire AWG 26
3901 002 57B: POLYIMIDE Insulated wire AWG 24
Nb of cables
1
1
2
L
M
2,4
0,55±0,25
1,9
3
0
1 ±0,25
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: C115372-0001)
For Female Contact: CK-MDMA-S
(P/N: C115372-0002)
- 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.
Good position for interfacial seal
Dimensions are shown in mm (inch)
Dimensions subject to change
B3-5
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Rev. 23APR13
5/13/13 6:32 PM
MDMA with Removable Crimp Contacts
MDMA - Connectors, Electrical, Rectangular, Microminiature with Removable crimp contacts compliant with
ESA/ESCC specifications 3401/077 for Connectors and 3401/078 for Contacts
Test Retention:
Calibrated test retention tool for Male and Female Contacts:
MDMA-115373-3 (P/N: C115373-0003)
Delivered with a calibration document referring to applicable force and travel
Delivered with 2 protective caps
Physical dimensions:
Process Test Retention:
Force applied 4,5N at travel max. (3 mm):
Dimensions are shown in mm (inch)
Dimensions subject to change
B3-6
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Rev. 23APR13
5/13/13 6:32 PM
MDMA with Removable Crimp Contacts
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 are shown in mm (inch)
Dimensions subject to change
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Rev. 23APR13
5/13/13 6:32 PM
MDMA with Removable Crimp Contacts
MDMA - Connectors, Electrical, Rectangular, Microminiature with Removable crimp contacts compliant with
ESA/ESCC specifications 3401/077 for Connectors and 3401/078 for Contacts
Accessories: Kit Backshells and Screw locks
Descriptions and Quality levels:
The Micro-D* Backshell are compatible with the MDMA connectors with the flat grommet.
One Kit contain:
1 backshell
2 retaining clips
2 jackscrews, slotted head
Quality level:
3401: according to ESA/ESCC 3401/071 Specification (Flying model)
FR022: according to C&K-FR022 Specification (Engineering model)
Kits Backshells descriptions and C&K Part-Numbers
Kit backshell with Nickel Finish on Shell (A174)
FR022 Quality level
ESA/ESCC Quality level
Sizes
Descriptions
Part-Numbers
Descriptions
Part-Numbers
15
MDM-115288-6268-A174-FR022
C115288-6268 MDM-115366-9688-A174(3401) C115366-9688
9
MDM-115288-6267-A174-FR022 C115288-6267 MDM-115366-9687-A174(3401) C115366-9687
21
MDM-115288-6269-A174-FR022 C115288-6269 MDM-115366-9689-A174(3401) C115366-9689
31
MDM-115288-6271-A174-FR022 C115288-6271 MDM-115366-9691-A174(3401) C115366-9691
25
37
MDM-115288-6270-A174-FR022 C115288-6270 MDM-115366-9690-A174(3401) C115366-9690
MDM-115288-6272-A174-FR022 C115288-6272 MDM-115366-9692-A174(3401) C115366-9692
Kit backshell with Gold Finish on Shell (FR172)
Sizes
9
15
21
25
31
37
FR022 Quality level
Descriptions
Part-Numbers
ESA/ESCC Quality level
Descriptions
Part-Numbers
MDM-115288-6273-FR172-FR022 C115288-6273 MDM-115366-9693-FR172(3401) C115366-9693
MDM-115288-6274-FR172-FR022 C115288-6274 MDM-115366-9694-FR172(3401) C115366-9694
MDM-115288-6275-FR172-FR022 C115288-6275 MDM-115366-9695-FR172(3401) C115366-9695
MDM-115288-6276-FR172-FR022 C115288-6276 MDM-115366-9696-FR172(3401) C115366-9696
MDM-115288-6277-FR172-FR022 C115288-6277 MDM-115366-9697-FR172(3401) C115366-9697
MDM-115288-6278-FR172-FR022 C115288-6278 MDM-115366-9698-FR172(3401) C115366-9698
Materials and Finishes:
Shells
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
Grommet
Fluorosilicone elastomere, pink color
Clip retaining
Stainless Steel type 303, passivated
Jackscrews
Stainless Steel type 303, passivated
Dimensions are shown in mm (inch)
Dimensions subject to change
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Rev. 23APR13
5/13/13 6:32 PM
MDMA with Removable Crimp Contacts
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:
SHELL SIZE
9
15
21
25
31
37
Max.
min.
Max.
min.
Max.
min.
Max.
min.
Max.
min.
Max.
min.
A
B
C
D
E
19,53
19,73
23,35
23,55
27,15
27,35
29,70
29,90
33,50
33,70
37,30
37,50
20,50
21,30
24,30
25,10
28,10
28,90
30,60
31,40
34,40
35,20
38,20
39,00
14,20
14,50
18,01
18,31
21,82
22,12
24,36
24,66
28,17
28,47
31,98
32,28
7,70
8,10
10,90
11,30
13,90
14,30
15,40
15,80
16,90
17,30
18,00
18,40
10,05
10,15
13,86
13,96
17,67
17,77
20,21
20,31
24,02
24,12
27,83
27,93
Dimensions are shown in mm (inch)
Dimensions subject to change
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Dimensions are shown in mm (inch)
Dimensions subject to change
B3-10
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Dimensions are shown in mm (inch)
Dimensions subject to change
B3-11
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Dimensions are shown in mm (inch)
Dimensions subject to change
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