3401-029 Microminiature MDM Connectors
Features/Benefits
•
High performance Micropin
TM
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
B1-1
www.ck-components.com
Rev. 23APR13
3401-029 Microminiature MDM Connectors
How to order – ESA quality level
Description (example): 340102901B 25PFR112F
3401029
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
9
15
21
25
31
37
51
Contact Type
P: Pin (Male contact)
S: Socket (Female contact)
01
B
25
P
FR112
F
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 (20.000),
cable 3901/013/02B
FR112A: Harness type, AWG26, length 508,00 (20.000),
cable 3901/002/56B
FR113: Harness type, AWG26, length 914,00 (36.000),
cable 3901/013/02B
FR113A: Harness type, AWG26, length 914,00 (36.000),
cable 3901/002/56B
FR123: Harness type, AWG26, length 4000,00 (157.480),
cable 3901/013/02B
FR123A: Harness type, AWG26, length 4000,00 (157.480),
cable 3901/002/56B
FR114: Harness type, AWG28, length 508,00 (20.000),
cable 3901/013/01B
FR114A: Harness type, AWG28, length 508,00 (20.000),
cable 3901/002/61B
FR115: Harness type, AWG28, length 914,00 (36.000),
cable 3901/013/01B
FR115A: Harness type, AWG28, length 914,00 (36.000),
cable 3901/002/61B
FR116: Straight Pigtail Terminations, length 25,40 (1.000)
FR136: 90° bent PCB Terminations, length 4,50 (.177)
FR136A: 90° bent PCB Terminations, Narrow profile,
length 3,50 (.138) – Size 9 only
FR139: Straight PCB Terminations,
length 4,50 (.177) – Size 51 not available
FR164: SOLDER CUP TYPE CONTACT – QUALITY LEVEL: ACCORDING TO ESA.
Connectors supplied with dust caps (not available separately)
Other configurations available on request, consult factory.
CDRI with description MDM-115366-xxxx
Dimensions are shown in mm (inch)
Dimensions subject to change
B1-2
www.ck-components.com
Rev. 23APR13
3401-029 Microminiature MDM Connectors
How to order – FR022 quality level
Description (example): MDM-25PH038F-A174-FR022
MDM
Microminiature connector,
MDM series
Shell Size:
Number of contacts
9
15
21
25
31
37
51
Contact Type
P: Pin (Male contact)
S: Socket (Female contact)
25
P
H038 F
A174
FR022
Quality Level (Connector Specification CS FR022)
(Commercial Space Grade)
Shell finish
A174: Electroless Nickel
FR172: Gold over electroless Nickel
Mounting
B: 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:
H038: Harness type, AWG26, length 508,00 (20.000),
cable MIL-W-16878/4
H011: Harness type, AWG26, length 914,00 (36.000),
cable MIL-W-16878/4
H038-AWG28: Harness type, AWG28,
length 508,00 (20.000),cable MIL-W-16878/4
H011-AWG28: Harness type, AWG28,
length 914,00 (36.000),cable MIL-W-16878/4
L2: Straight Pigtail Terminations, length 25,40 (1.000)
FR136: 90° bent PCB Terminations, length 4,50 (.177)
FR136A: 90° bent PCB Terminations, Narrow profile,
length 3,50 (.138) – Size 9 only
FR139: Straight PCB Terminations,
length 4,50 (.177) – Size 51 not available
Note:
Connectors supplied with dust caps (not available separately)
Other configurations available on request, consult factory.
CDRI with description MDM-115288-xxxx
Dimensions are shown in mm (inch)
Dimensions subject to change
B1-3
www.ck-components.com
Rev. 23APR13
3401-029 Microminiature MDM Connectors
Materials and Finishes
Shells
Insulators
Female contacts
Male contacts
MDM PCB Housings
Interfacial Seals
Screwlocks
Accessories
Dust Caps
Encapsulant
Uninsulated rigid Wire
ESCC 3901/013 Cables
ESCC 3901/002 Cables
MIL-W-16878/4 Cables
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
Diallylphtalate thermoset material, UL 94-VO, glass-filled, dark green color
Fluorosilicone elastomere, pink color
Stainless Steel type 303, passivated
Stainless Steel type 303, passivated
Polyethylene thermoplastic material, transparent pink color
Epoxy
Copper / Finish: 1,27 µm (50 µin) min. Gold over 2,54 (100 µin) min. Silver underlay
Copper alloy / Finish 2,00 µm (79 µin) min. Silver / Extruded PTFE Insulation
Copper alloy / Finish 2,00 µm (79 µin) min. Silver / Wrapped Polyimide tape Insulation
Copper alloy / Finish Silver coating / Extruded PTFE Insulation
Quality Levels
ESA Quality Level.
The Dole plant (France) is qualified by ESA for the supply of Microminiature connectors Type MDM, according to the ESCC Generic
Specification N° 3401, and to the applicable ESCC Detail Specifications n° 3401/029 (MDM Connectors), 3401/041 (Connector Savers)
and 3401/032 (Accessories).
First qualification obtained in 1986 (renewed every 2 years).
Qualification certificate: 140 (MDM).
Applications: Flight equipments, satellites, launchers (ESA requirements).
FR022 Quality Level.
“Commercial Space Grade”.
C&K Connector Specification CS FR022, amendment to the ESCC Generic Specification n° 3401, for low cost products manufactured:
- in the same ESA qualified site
- through the same manufacturing and control processes
- with the same piece parts (except for the cables: MIL-W-16878/4 instead of ESCC 3901)
- with lighter controls, documentation and traceability
Applications: Engineering models, ground equipments, testing, some flight equipments (no need for high requirements).
The connectors and accessories, supplied according to these 2 quality levels, are totally compatible, interchangeable, and intermateable,
as they are manufactured with the same piece parts (except for the cables), in the same ESA qualified site.
Dimensions are shown in mm (inch)
Dimensions subject to change
B1-4
www.ck-components.com
Rev. 23APR13
3401-029 Microminiature MDM Connectors
Performance Specifications
Operating Temperature range
Storage Temperature range
Working Voltage
(between contacts and contact and shell)
Rated Current
Insulation Resistance (500 V DC)
Voltage Proof
Contact Retention in insert
Engagement / Separation Forces
(Male Contacts)
-55°C / +125°C (-67°F / +257°F)
-55°C / +125°C (-67°F / +257°F)
Sea level
150 Vrms
33000 m (108240 feet) altitude
100 Vrms
AWG 26 Wire
2,5 A max.
AWG 28 Wire
1,5 A max.
Solid uninsulated Wire
2,5 A max.
5000 MW min.
600 Vrms / 2.0 mA max. leakage current
22,25 N max. / No contact axial displacement allowed
Gauge Fixture
Max.
Min.
Shell Size
9
15
21
25
31
37
51
100
Inner diameter
Separation Force (N min.)
min. / max.
0,559 (.0220) / 0,564 (.0222)
0,582 (.0229) / 0,587 (.0231)
0,137
Mating Force (N max.)
20
33
47
55
69
82
113
222
Unmating Force (N min.)
1.3
2.0
2.9
3.5
4.3
5.1
7.1
---
Engagement Force (N max.)
1,667
Unmating Force (N max.)
20
33
47
55
69
82
113
222
Mating / Unmating Forces
Mechanical Endurance
Contact Resistance
500 cycles mating/unmating
Low level current (10 mA / 20 mV DC): 6.0 mW max.
Rated current: 5.0 mW max.
Nb of Contacts per Connector
2 to 4
5 to 14
15 and over
Solid uninsulated Wire
2,0 A max.
1,8 A max.
1,4 A max.
FR136 (2)
7.4 g
7.8 g
8.5 g
10.2 g
12.2 g
14.4 g
16.5 g
AWG 26 Wire
2,0 A max.
1,8 A max.
1,4 A max.
AWG 28 Wire
1,4 A max.
1,2 A max.
0,9 A max.
FR139 (2)
4.6 g
5.0 g
5.4 g
6.5 g
7.7 g
9.2 g
N.A.
Savers (2)
4.0 g
5.5 g
7.0 g
8.0 g
9.5 g
10.0 g
13.5 g
Maximum Rated Current
Shell Size FR112 to FR116 & FR123 (1)
9
2.2 g
15
3.0 g
21
3.8 g
25
4.3 g
31
5.1 g
37
5.9 g
51
7.2 g
Maximum Weight
FR136A (2)
7.4 g
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
Note (1): Connector with contacts and rear potting, without cables and accessories
Add: 0.4 g for float mount (code F)
Add: 1.0 g for captive nut (code E)
Note (2): Connectors with contacts and rear potting
Solid Uninsulated Wire
Insulated Cable AWG26 (ESCC 390101302B)
Insulated Cable AWG28 (ESCC 390101301B)
Insulated Cable AWG26 (ESCC 390100256B)
Insulated Cable AWG28 (ESCC 390100261B)
Hardwares: see pages 31 to 38
1.60 g / m
2.30 g / m
1.80 g / m
1.93 g / m
1.23 g / m
Residual Magnetism Level
20000 Gamma max. (NM)
Dimensions are shown in mm (inch)
Dimensions subject to change
B1-5
www.ck-components.com
Rev. 23APR13
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