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INDUSTRIAL QUALITY
FIXED CONTACT
STANDARD DENSITY D-SUBMINIATURE
D
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Size 20 Contacts, Fixed
PosiBand
®
Closed Entry
IEC Publication 60807-2
Performance Level One
Consult Technical Sales for
U.L. Recognition
NEW!
MDX series connectors are industrial quality connectors rec-
ommended for use in sheltered, non-corrosive indoor or out-
door environments having normal ventilation, but without tem-
perature or humidity controls. These fixed contact connectors
meet the dimensional and performance requirements of IEC
60807-2, Performance Level One.
MDX series connectors utilize precision machined contacts
which are fixed within the connector body. The female utilizes
Positronic’s unique PosiBand closed entry contact system, see
page 1 for details.
Five standard connector variants are offered in arrangements
of 9, 15, 25, 37 and 50 contacts. Each variant is available with
contact terminations for solder cup and straight and right angle
(90°) printed board mount terminations. MDX series connectors
are mateable and compatible with all D-subminiature connectors
conforming to IEC 60807-2, IEC 60807-3 and MIL-DTL-24308.
A wide assortment of printed board mounting hardware, cable
support hoods and locking systems is available from stock.
Di
rec
tive
2002
/9
MDX SERIES TECHNICAL CHARACTERISTICS
MATERIALS AND FINISHES:
Insulator:
Contacts:
Contact Plating:
Shells:
Glass filled polyester per MIL-M-24519, U.L.
94V-0, blue color.
Precision machined copper alloy.
Professional performance Gold flash over
nickel plate. Other finishes available upon
request.
Steel or brass with tin plate; zinc plate with
chromate seal, stainless steel passivated.
Other materials and finishes available upon
request.
Solder cup contacts - 0.042 inch [1.06mm]
minimum hole diameter for 20 AWG
[0.5mm
2
] wire maximum.
Straight Printed Board Mount - 0.028 inch
[0.71mm] termination diameter.
Right Angle (90°) Printed Board Mount -
0.028 inch [0.71mm] termination diameter
for all printed board footprints.
Polarization:
Trapezoidally shaped shells and polarized
jackscrews.
Mounting To
Jackscrews and riveted fasteners with a
Angle Brackets:
0.120 inch [3.05mm] clearance hole, and
threaded riveted fasteners with 4-40 threads
and nylon lock inserts.
Mounting To Printed Board:
Rapid installation push-on fasteners and
threaded posts.
Locking Systems:
Jackscrews and vibration locking systems.
Mechanical Operations:
1000 operations minimum per IEC 60512-5.
Contact
Terminations:
Nylon; copper alloy or steel with zinc plate and
chromate seal or tin plate; phosphor bronze
with tin plate; stainless steel, passivated.
Push-On Fasteners:
Phosphor bronze or beryllium copper with tin
plate.
Jackscrew Systems:
Brass or steel with zinc plate and chromate
seal or clear zinc plate or tin plate; stainless
steel, passivated..
Vibration Lock Systems:
Slide lock and lock tabs, steel with nickel
plate.
Hoods:
Composite and plastic, UL 94V-0; brass or
steel with zinc plate and chromate seal; alu-
minum or aluminum with electroless nickel
plate; die cast zinc.
Non-magnetic versions are available, contact Technical Sales.
Mounting Spacers
and Brackets:
ELECTRICAL CHARACTERISTICS:
Contact Current Rating:
Initial Contact
Resistance:
Insulator Resistance:
Proof Voltage:
Clearance and Creepage
Distance [minimum]:
Working Voltage:
Temperature Range:
Damp Heat, Steady
State:
14 amperes, tested per U.L. 1977, six
contacts energized.
See temperature rise
curve on page 2 for details.
0.005 ohms maximum.
5 G ohms.
1000 V r.m.s.
0.039 inch [1.0mm].
300 V r.m.s.
-55°C to +125°C.
10 days.
MECHANICAL CHARACTERISTICS:
Fixed Contacts:
Contact Retention
In Insulator:
Size 20 contact, female contact - PosiBand
closed entry design, see page 1 for details.
6 lbs. [27N]
CLIMATIC CHARACTERISTICS:
11
DIMENSIONS ARE IN INCHES [MILLIMETERS].
ALL DIMENSIONS ARE SUBJECT TO CHANGE.
5/
EC
RoHS
Compliant
IT
R
O
NIC
INDU
S
TR
POS
IES
For RoHS options
see page 15.
MDX SERIES
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INDUSTRIAL QUALITY
FIXED CONTACT
STANDARD DENSITY D-SUBMINIATURE
CONTACT VARIANTS
FACE VIEW OF FEMALE OR REAR VIEW OF MALE
1
2
3
4
5
1
2
3
4
5
6
7
8
1
NEW!
Positronic Industries
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2
3
4
5
6
7
8
9
10 11 12 13
6
7
8
9
9
10 11 12 13 14 15
14 15 16 17 18 19 20 21 22
23 24 25
MDX 9
1
2
3
4
5
6
7
8
9
10
1
11 12 13 14 15 16 17 18 19
20
21 22 23 24 25 26 27 28 29
2
3
4
5
6
7
MDX 15
1
8
9
10 11 12 13 14 15 16 17 18 19
2
3
4
5
6
MDX 25
7
8
9
10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
34
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
MDX 29
MDX 37
MDX 50
STANDARD SHELL ASSEMBLY
B
K
M
G
10° Typ.
0.050±0.010
[1.27±0.25]
C
A
0.036±0.008
[0.91±0.20]
0.220 [5.59]
Max.
Ø0.120±0.005 [Ø3.05±0.13]
Mounting hole, two places
OPTIONAL SHELL ASSEMBLY (0, 02)
OPTIONAL SHELL ASSEMBLY
WITH UNIVERSAL FLOAT MOUNTS (F)
0.120±0.010 [3.05±0.25]
Ø0.120±0.005 [Ø3.05±0.13]
Mounting hole, two places
for stainless steel shell (0 option)
Ø0.154 [3.91] Mounting hole,
two places (02 option)
0.032 [0.81]
Total diametral float
Ø0.086+0.005 Ø2.18+0.13
-0.00
-0.000
Mounting hole, two places
[
]
CONNECTOR
VARIANT SIZES
A
±0.015
[0.38]
1.213
[30.81]
1.541
[39.14]
2.088
[53.04]
2.729
[69.32]
2.635
[66.93]
B
±0.005
[0.13]
0.643
[16.33]
0.971
[24.66]
1.511
[38.38]
2.159
[54.84]
2.064
[52.43]
C
±0.005
[0.13]
0.984
[24.99]
1.312
[33.32]
1.852
[47.04]
2.500
[63.50]
2.406
[61.11]
D
±0.005
[0.13]
0.311
[7.90]
0.311
[7.90]
0.311
[7.90]
0.311
[7.90]
0.423
[10.74]
E
±0.015
[0.38]
0.494
[12.55]
0.494
[12.55]
0.494
[12.55]
0.494
[12.55]
0.605
[15.37]
G
±0.010
[0.25]
0.759
[19.28]
1.083
[27.51]
1.625
[41.28]
2.272
[57.71]
2.178
[55.32]
H
±0.010
[0.25]
0.422
[10.72]
0.422
[10.72]
0.422
[10.72]
0.422
[10.72]
0.534
[13.56]
K
±0.005
[0.13]
0.243
[6.17]
0.243
[6.17]
0.243
[6.17]
0.243
[6.17]
0.243
[6.17]
M
±0.010
[0.25]
0.429
[10.90]
0.429
[10.90]
0.429
[10.90]
0.429
[10.90]
0.429
[10.90]
9S
15 S
25 S
37 S
50 S
DIMENSIONS ARE IN INCHES [MILLIMETERS].
ALL DIMENSIONS ARE SUBJECT TO CHANGE.
12
MDX SERIES
E
D
H
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INDUSTRIAL QUALITY
FIXED CONTACT
STANDARD DENSITY D-SUBMINIATURE
SOLDER CUP CONNECTOR
CODE 2
D
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Fixed female jackscrews
20 AWG max.
2
[0.5 mm ]
Fixed female
jackscrew
Fixed male
jackscrew
0.135 [3.43]
0.352 [8.94]
For solder cup contacts, specify
code 2 in step 4
of ordering information.
Fixed male and female polarized jackscrews available.
Specify code T6 in step 7 of ordering information.
Typical Part Number: MDX15S200T6Z
Typical Part Number: MDX15S200T2Z
STRAIGHT PRINTED BOARD MOUNT CONNECTOR
CODE 3, 32 AND 33
CODE
NUMBER
3
32
33
L
0.170 [4.32]
0.375 [9.53]
0.500 [12.70]
ØD
0.028 [0.71]
0.028 [0.71]
0.028 [0.71]
Fixed female jackscrews
Swaged spacer with
push-on fastener
phosphor bronze
0.225 [5.71]
0.010 [0.25]
NOMINAL
MDX SERIES
13
For straight printed board mount
contacts, specify code number in
step 4 of ordering information.
L
ØD
Typical Part Number: MDX25S3S60T0
RIGHT ANGLE (90°) PRINTED BOARD MOUNT CONNECTOR
C
Ø0.125
[3.18]
Typ.
CODE 4, 0.450 [11.43] CONTACT EXTENSION
MDX**4B*** 0.450 [11.43] CONTACT EXTENSION
PART NUMBER
MDX9S4B***
MDX15S4B***
A
1.204
[30.58]
1.532
[38.91]
2.072
[52.63]
2.720
[69.09]
2.626
[66.70]
B
0.984
[24.99]
1.312
[33.32]
1.852
[47.04]
2.500
[63.50]
2.406
[61.11]
C
0.506
[12.85]
0.506
[12.85]
0.506
[12.85]
0.506
[12.85]
0.562
[14.27]
D
0.450
[11.43]
0.450
[11.43]
0.450
[11.43]
0.450
[11.43]
0.450
[11.43]
Fixed
female
jackscrews
B
±0.008
[0.20]
A
MDX25S4B***
MDX37S4B***
MDX50S4B***
0.112 [2.84] Typ.
Specify code 4
in step 4 of
ordering information
D
0.112 [2.84]
Typ.
1
Numbering shown is
rear view of female.
0.112 [2.84] Typ.
D
2
14
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
0.170 [4.32]
Nominal
Typical Part Number:
MDX25S4B0T20
DIMENSIONS ARE IN INCHES [MILLIMETERS].
ALL DIMENSIONS ARE SUBJECT TO CHANGE.
Ø0.028 [0.71]
Typical Part Number:
MDX50S4B0T20
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INDUSTRIAL QUALITY
FIXED CONTACT
STANDARD DENSITY D-SUBMINIATURE
NEW!
Positronic Industries
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RIGHT ANGLE (90°) PRINTED BOARD MOUNT CONNECTOR
CODE 5, 0.283 [7.19] CONTACT EXTENSION
C
MDX**5R4*** 0.283 [7.19] CONTACT EXTENSION
PART NUMBER
MDX9S5R4***
MDX15S5R4***
A
1.204
[30.58]
1.532
[38.91]
2.072
[52.63]
2.720
[69.09]
2.626
[66.70]
B
0.984
[24.99]
1.312
[33.32]
1.852
[47.04]
2.500
[63.50]
2.406
[61.11]
C
0.339
[8.61]
0.339
[8.61]
0.339
[8.61]
0.339
[8.61]
0.395
[10.03]
D
0.283
[7.19]
0.283
[7.19]
0.283
[7.19]
0.283
[7.19]
0.283
[7.19]
Fixed
female
jackscrews
B
±0.008
[0.20]
A
MDX25S5R4***
MDX37S5R4***
MDX50S5R4***
0.112 [2.84] Typ.
Specify code 5
in step 4 of
ordering information
Numbering shown is
rear view of female.
0.112 [2.84] Typ.
D
D
0.112 [2.84]
Typ.
1
2
14
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
Typical Part Number:
MDX25S5R4NT2X
Push-on fastener
beryllium copper
Ø0.028 [0.71]
Typical Part Number:
MDX50S5R4NT2X
RIGHT ANGLE (90°) AND STRAIGHT PRINTED BOARD CONTACT HOLE PATTERN
MOUNT CONNECTOR WITH MATING FACE POSITIONED TO FOLLOW DIRECTION OF ARROW.
0.492
[12.50]
Sym.
0.216 [5.49]
0.108 [2.74]
Typ.
0.656
[16.66]
Sym.
0.378 [9.60]
0.054 [1.37]
Typ.
Sym.
0.926 [23.52]
0.652 [16.56]
0.109 [2.77]
Typ.
0.054 [1.37]
Typ.
0.112
[2.84]
0.162 [4.11]
0.108 [2.74]
Typ.
0.112
[2.84]
0.324 [8.23]
0.055 [1.40]
Typ.
0.598 [15.19]
0.112
[2.84]
MDX9
MDX15
Sym.
MDX25
1.203
[30.56]
0.109
[2.77]
Typ.
Sym.
1.250 [31.75]
SUGGESTED PRINTED
BOARD HOLE SIZES:
Suggest 0.045 [1.14] Ø hole for contact
termination positions.
Suggest 0.123 ±0.003 [3.12 ±0.08] Ø
hole for mounting connector with push-
on fasteners.
0.978 [24.84]
0.109
[2.77]
Typ.
0.870
[22.10]
0.224
[5.69]
0.055 [1.40]
Typ.
0.112
[2.84]
0.924 [23.47]
0.055 [1.40]
Typ.
0.815 [20.70]
0.112
[2.84]
MDX37
MDX50
DIMENSIONS ARE IN INCHES [MILLIMETERS].
ALL DIMENSIONS ARE SUBJECT TO CHANGE.
14
MDX SERIES
0.170 [4.32]
Nominal
NEW!
Positronic Industries
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INDUSTRIAL QUALITY
FIXED CONTACT
STANDARD DENSITY D-SUBMINIATURE
D
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ORDERING INFORMATION - CODE NUMBERING SYSTEM
Specify Complete Connector By Selecting An Option From Step 1 Through 8
STEP
EXAMPLE
MDX series.
1
MDX
2
25
3
S
4
5
5
R7
6
N
7
T6
8
X
9
/AA
10
-14
STEP 10 - SPECIAL OPTIONS
-14 - 0.000030 [0.76µ] gold over
nickel.
-15 - 0.000050 [1.27µ] gold over
nickel.
CONTACT TECHNICAL SALES
FOR SPECIAL OPTIONS
STEP 1 - BASIC SERIES
STEP 2 - CONNECTOR VARIANTS
9, 15, 25, 37, 50
STEP 3 - CONNECTOR GENDER
S - Female - Industrial Level
PosiBand closed entry contacts
IT
R
O
NIC
INDU
S
STEP 4 - CONTACT TERMINATION TYPE
2 - Solder cup.
3 - Solder, Straight Printed Board Mount with 0.170
[4.32] Tail Length.
*
4
32 - Solder, Straight Printed Board Mount with 0.375
[9.52] Tail Length.
*
4
33 - Solder, Straight Printed Board Mount with 0.500
[12.70] tail length.
*
4
4 - Solder, Right Angle (90°) Printed Board Mount
with 0.450 [11.43] Contact Extension.
5 - Solder, Right Angle (90°) Printed Board Mount
with 0.283 [7.19] Contact Extension.
EC
RoHS
Compliant
Di
•
STEP 9 - ENVIRONMENTAL
COMPLIANCE
OPTIONS
/AA - Compliant per EU Directive
2002/95/EC (RoHS)
POS
rec
tive
2002
/9
NOTE:
If compliance to environmental
legislation is not required, this step will not
be used. Example: MDX25S5R7NT6X
STEP 8 - Shell Options
0 - Zinc plated, with chromate seal.
S - Stainless steel, passivated.
X - Tin plated.
Z - Tin plated and dimpled (male connectors only).
*
1
STEP 5 - MOUNTING STYLE
0
02
B
B3
B7
B8
F
P
P2
R
-
-
-
-
-
-
-
-
-
-
Mounting Hole, 0.120 [3.05] Ø.
Mounting Hole, 0.154 [3.91] Ø.
Bracket, Mounting, Right Angle (90°) Metal.
Bracket, Mounting, Right Angle (90°) Metal with Cross Bar.
Bracket, Mounting, Right Angle (90°) Plastic.
Bracket, Mounting, Right Angle (90°) Plastic with Cross Bar.
Float Mounts, Universal.
Threaded Post, Brass, 0.225 [5.71] Length.
Threaded Post, Nylon, 0.225 [5.71] Length.
Bracket, Mounting, Right Angle (90°) Metal, Swaged to
Connector with 4-40 Thread Fixed Female Jackscrews.
Bracket, Mounting, Right Angle (90°) Metal, Swaged to
Connector with 4-40 Thread Fixed Female Jackscrews with
Cross Bar.
Bracket, Mounting, Right Angle (90°) Metal, Swaged to
Connector with 0.120 [3.05] Ø Mounting Hole.
Bracket, Mounting, Right Angle (90°) Metal, Swaged to
Connector with 4-40 Threads.
Bracket, Mounting, Right Angle (90°) Metal, Swaged to
Connector with 4-40 Locknut.
Bracket, Mounting, Right Angle (90°) Metal, Swaged to
Connector with 0.120 [3.05] Ø Mounting Hole with Cross Bar.
Bracket, Mounting, Right Angle (90°) Metal, Swaged to
Connector with 4-40 Threads with Cross Bar.
Bracket, Mounting, Right Angle (90°) Metal, Swaged to
Connector with 4-40 Locknut with Cross Bar.
Swaged Spacer, 4-40 Threads, 0.225 [5.71] Length.
Swaged Spacer, 4-40 Threads, 0.125 [3.18] Length.
Swaged Locknut, 4-40 Threads.
Swaged Spacer with Push-on Fastener, 4-40 Threads, 0.225
[5.71] Length.
Swaged Spacer with Push-on Fastener for use with Ferrite
Inductor, 4-40 Threads, 0.375 [9.53] Length.
*
1
STEP 7 - LOCKING AND POLARIZING SYSTEMS
0
*
3
V3
*
3
V5
*
3
VL
T
T2
T6
E
E2
E3
E6
-
-
-
-
-
-
-
-
-
-
-
None.
Lock Tab, connector front panel mounted.
Lock Tab, connector rear panel mounted.
Lock Lever, used with Hoods only.
Fixed Female Jackscrews.
Fixed Female Jackscrews.
Fixed Male and Female Polarized Jackscrews.
Rotating Male Jackscrews.
Rotating Male Screw Locks.
Rotating Male with Internal Hex for 3/32 Hex Drives
Rotating Male and Female Polarized Jackscrews.
R2 -
R3 -
R4 -
R5 -
R6 -
R7 -
R8 -
S
S2
S5
S6
-
-
-
-
*
1
STEP 6 - HOODS AND PUSH-ON FASTENERS
0
J
L
Y
-
-
-
-
None.
Hood, Top Opening, Plastic.
Hood, Side Opening, Plastic.
Hood, Top Opening, Plastic with Rotating Male Jackscrews.
Available in size 50 only.
Hood, Top Opening, Plastic with Rotating Male and Female
Polarized Jackscrews. Available in size 50 only.
Hood, Top or Side Opening, Robust and Extended Height,
Composite and Plastic with Rotating Male Jackscrews. Available in
size 9, 15, 25, 37, and 50 only.
Hood, Top Opening, Metal. Available in size 15, 25, 37, and 50 only.
Hood, EMI/RFI, Metal. Available in size 9, 15, 25, 37, and 50 only.
Lightweight Aluminum Hood, nickel finish.
Lightweight Aluminum Hood, no finish.
Hood, Top or Side Opening, Plastic. Available in size 9, 15, and 25
only.
Push-on fastener for right angle (90°) mounting brackets.
Ferrite inductor.
Ferrite inductor for use with push-on fastener and right angle (90°)
mounting brackets.
Y6 -
Z-
H
G
AN
AC
W
-
-
-
-
-
S7 -
*
1
For additional information on accessories listed in steps 5, 6 and 7, see
Accessory Catalog.
*
2
Ferrite inductor is available on contact types 32, 4, 59 and 6 only. For
more information on ferrite inductors, see page 7.
3
* VL, V3 and V5 locking systems are not available for connector variants
37 and 50. Jackscrews are highly recommended to minimize damage
to contacts on variants with high mating forces.
4
* Consult technical sales for availability.
N-
*
2
F -
*
2
Q -
15
DIMENSIONS ARE IN INCHES [MILLIMETERS].
ALL DIMENSIONS ARE SUBJECT TO CHANGE.
5/
MD SERIES
TR
IES
•
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MDX SERIES
