M SERIES

Essen Deinki’s M Series D-subminiature connectors are your versatile go-to for seamless connections. They come in five basic shell sizes (E, A, B, C, and D), ranging from 9 to 50 contacts, offering both male (plugs) and female (sockets) connectors. Whether you need solder bucket, PC straight/right-angle, or wire wrap contacts, they’ve got you covered. These connectors are built with safety in mind, using flame-retardant thermoplastic insulators (UL94V-O). Plus, their trapezoidal shape ensures easy and secure polarization. You can choose between rigid or float mounting versions and pick from various hoods and accessories upon request. These connectors are trusted in data processing, telecom, instrumentation, and the broader electronics industry for reliable connections.

Characteristics

  • Plugs (male) and sockets (female) are available in five basic shell sizes E, A,B,C and D containing 9, 15,25, 37 and 50 contacts respectively
  • Contacts are available in solder bucket, PC straight/ right angle and wire wrap versions
  • Solder bucket contacts accommodate wire sizes upto 0.6 sq.mm. (AWG 20) standard wire.
  • Two piece insulators are made of flame retardant thermoplastic (UL94V-O).
  • Trapezoidal shape of the shells ensures foolproof polarisation
  • Available in rigid or float mounting versions.
  • For each size of connectors, various types of hoods are available.
  • Wide range of accessories can be supplied on request.
  • Used in data processing, telecom , instrumentation and general electronic industries.

Technical data

Material
  Shells
  Insulator
  Contacts
  Finish


Electrical
   Voltage Proof
  Current rating
  Voltage rating
  Contact resistance
  Insulation resistance
  Operating temprature


Steel,zinc/ cadmium or tin plated
Flame retardant thermoplastic UL94V-O
Copper alloy
Gold over nickel (active zone)
Tin over nickel (termination zone)
or gold over nickel all over

1000V AC rms.
5A or 7.5A
300V AC rms.
10 milliohms max.
5000 Mohms min.
-55°C to +125°C

Panel Cutouts

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Types of mounting

Rigid
Rigid
Rigid
Rigid
Rigid

Mounting Method

Front
Rear
Front
Rear
Front
Rear
Front
Rear
Front
Rear

A±0.2

22.2
20.5
30.5
28.8
44.3
12.3
60.7
59.1
58.3
56.3

B±0.2

11.1
10.2
13.3
14.4
22.1
21.3
30.4
29.5
29.2
28.2

C±0.2

25.0
25.0
33.3
33.3
47.0
47.0
63.5
63.5
61.1
61.1

D±0.2

12.5
12.5
16.7
16.7
23.5
23.5
31.7
31.7
30.6
30.6

E±0.2

13.0
11.4
13.0
11.4
13.0
11.4
13.0
11.4
15.8
14.1

F±0.2

6.5
5.7
6.5
5.7
6.5
5.7
6.5
5.7
7.9
7.1

G±0.1

3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0

H±0.1

1.5
​1.5
​1.5
​1.5
​1.5
​1.5
​1.5
​1.5
​1.5
​1.5

J±0.2

2.1
3.4
2.1
3.4
2.1
3.4
2.1
3.4
2.1
3.4

Male, Solder Bucket

Ordering Code

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MO9P11 ( )
  • M15 P11( )
  • M 25P11( )
  • M 37P11( )
  • M 50P11( )

Machined contacts (7.5A)

  • MDO9P 11 ( )
  • MD15P  11 ( )
  • MD 25 P 11 ( )
  • MD 37 P 11 ( )
  • MD 50P 11 ( )

Female Solder Bucket

Ordering Code

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MO9S11 ( )
  • M15S11 (  )
  • M25S11 (  )
  • M37S11 (  )
  • M50S11 (  ) 

Machined contacts (7.5A)

  • MDO9S 11 ( )
  • MD15S 11 ( )
  • MD25S 11 ( )
  • MD37S 11 ( )
  • MD50S 11 ( )

Add following at () in the ordering code above for contact finish

Plating
thickness		 Gold all over Selective gold
on mating area
Level 3
1
4
Level 2
2
5
Level 1
3
6

Male, PC Straight

Ordering Code

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • M09P12 ( )
  • M15P12 ( )
  • M25P12 ( )
  • M37P12 ( )
  • M50P12 ( )

Machined contacts (7.5A)

  • MD09P12( )
  • MD15P12( )
  • MD25P12( )
  • MD37P12( )
  • MD50P12( )

Female, PC Straight

Ordering Code

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • M09S12()
  • M15S12()
  • M25S12 ()
  • M37S12 ()
  • M50S12 ()

Machined contacts (7.5A)

  • MD09S12( )
  • MD15S12 ( )
  • MD 25 S12 ( )
  • MD37P12( ) 
  • MD50S12 ( )

Male, Wire Wrap Machined pins (7.5A)

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09P15 ( )
  • MD15P15 ( )
  • MD25P15 ( )
  • MD37P15 ( )
  • MD50P15 ( )

Female, Wire Wrap Machined pins (7.5A)

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09S15( )
  • MD15S15 ( )
  • MD25S15 ( )
  • MD37S15 ( )
  • MD50S15( )
No. of contacts A B C
E
09
30.6
25.0
12.5
A
15
39.0
33.3
12.5
B
25
52.8
47.0
12.5
c
37
69.2
63.5
12.5
D
50
66.6
61.1
12.5

Add following at () in the ordering code above for contact finish

Plating
thickness		 Gold all over Selective gold
on mating area
Level 3
1
4
Level 2
2
5
Level 1
3
6

7.2 mm. foot print
Row pitch 2.54 mm.

Male, PC Right Angle Machined pins (7.5A)
with guided bracket

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09P13 ( )
  • MD15P13 ( )
  • MD25P13 ( )
  • MD37P13 ( )
  • MD50P13 ( )

Female, PC Right Angle Machined pins (7.5A)
with guided bracket

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09S13( ) B
  • MD15S13( ) B
  • MD25S13( ) B
  • MD37S13( ) B
  • MD50S13( ) B
No. of contacts A B C
E
09
25.0
12.5
30.8
A
15
33.3
12.5
39.1
B
25
47.0
12.5
53.0
c
37
63.5
12.5
69.3
D
50
61.1
15.4
66.9

Add following at () in the ordering code above for contact finish

Plating
thickness		 Gold all over Selective gold
on mating area
Level 3
1
4
Level 2
2
5
Level 1
3
6

7.2 mm. foot print
Row pitch 2.84 mm.

Male, PC Right Angle Machined pins (7.5A)
with guided bracket

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09P14 ( )B
  • MD15P14 ( )B
  • MD25P14 ( )B
  • MD37P14 ( )B
  • MD50P14 ( )B

Female, PC Right Angle Machined pins (7.5A)
with guided bracket

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09S14 ( )B
  • MD 15S14 ( )B
  • MD25S14 ( )B
  • MD37S14 ( )B
  • MD50S14 ( )B
No. of contacts A B C
E
09
25.0
12.5
30.8
A
15
33.3
12.5
39.1
B
25
47.0
12.5
53.0
c
37
63.5
12.5
69.3
D
50
61.1
15.4
66.9

Add following at () in the ordering code above for contact finish

Plating
thickness		 Gold all over Selective gold
on mating area
Level 3
1
4
Level 2
2
5
Level 1
3
6

9.4 mm. foot print
Row pitch 2.54 mm.

Male, PC Right Angle Machined pins (7.5A)
with guided bracket

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09P16( ) B
  • MD15P16 ( )B
  • MD25P16 ( )B
  • MD37P16 ( )B
  • MD50P16 ( )B

Female, PC Right Angle Machined pins (7.5A)
with guided bracket

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09S16 ( )B
  • MD15S16 ( )B
  • MD25S16 ( )B
  • MD37S16 ( )B
  • MD50S16 ( )B

9.4 mm. foot print
Row pitch 2.84 mm.

No. of contacts A B C
E
09
25.0
12.5
30.8
A
15
33.3
12.5
39.1
B
25
47.0
12.5
53.0
c
37
63.5
12.5
69.3
D
50
61.1
15.4
66.9

Add following at () in the ordering code above for contact finish

Plating
thickness		 Gold all over Selective gold
on mating area
Level 3
1
4
Level 2
2
5
Level 1
3
6

Male, PC Right Angle Machined pins (7.5A)
with guided bracket

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09P17 ( )B
  • MD15P17 ( )B
  • MD25P17 ( )B
  • MD37P17 ( )B
  • MD50P17 ( )B

Female, PC Right Angle Machined pins (7.5A)
with guided bracket

No. of contacts

  • 09
  • 15
  • 25
  • 37
  • 50

Stamped contacts (5A)

  • MD09S17 ( )B
  • MD15S17 ( )B
  • MD25S17 ( )B
  • MD37S17 ( )B
  • MD50S17 ( )B

Add following at () in the ordering code above for contact finish

Plating
thickness		 Gold all over Selective gold
on mating area
Level 3
1
4
Level 2
2
5
Level 1
3
6

Ordering Code

Series

Contact type

No. of Contacts

Type of connectors

Termination Style

M

D

15

P

Stamped Contacts
(5A) - Omitted
machined contacts
(7.5) - D



09,15,25

37,50



Plug (male) - P

Socket (Female)- S



Solder Bucket -11
PC Straight       -12
PC right angle
  7.2 mm foot print
     Row pitch 2.54mm -13**     Row pitch 2.84mm -14**
   9.4 mm foot print
     Row pitch 2.54mm -16**     Row pitch 2.84mm -17**
Wire wrap -15

Contact finish

Modificat-ions

1

XX

1

XX

Plating
thickness		 Gold all over Selective gold
on mating area
Level 3
1
4
Level 2
2
5
Level 1
3
6

**with guided bracket only.

Notes:

  1. Shells are mainly supplied with zinc/cadmium Tin plated shells can be supplied on request. Please add suffix ‘T’.
  2. D-connectors are supplied with rigid mounting.For float mounting,please add suffix ‘F’#.
  3. Add suffix ‘B’ for D-sub PC right angle connectors complete with guided plastic brackets duly screwed to the connector. e.g.M15P141B
  4. If in (3),D-sub connectors are required with bracket (guided) fitted with 4-40UNC screws,add additional suffix ‘X’, e.g.M9P141BX.
  5. Add suffix ‘Y’ if (3) is required with snap lock, e.g.M9P141BY or M9Pl41BXY. (With 4-40 UNC screw and snap lock).
  6. Add suffix ‘Z’ for D-sub PC right angle connector complete with lock block
  7. Add suffix ‘D’ for supply of D-sub connector with dimples on its shell (only for male connector),e.g.M25P111D or MD25P111D

Add suffix ‘V’ if in (3),D-sub connectors are required with bracket (guided) fitted with 19 mm.4-40UNC Screws e.g.M9P1418VX.

M-Series D-Sub Connectors – Rugged, Reliable, and Versatile

Looking for reliable D-Sub Connectors engineered for precision and durability? The M-Series D-Sub Connectors from ESSEN Deinki are the go-to solution for robust electrical connectivity in industrial, commercial, and high-performance electronic systems.

These D-Sub Connectors are designed to provide secure and stable signal transmission in harsh environments. Whether you’re building communication interfaces, connecting control systems, or integrating PCB assemblies, the M-Series offers the ideal combination of mechanical strength, compact design, and long-term dependability.

Explore More D-Sub Connector Solutions from ESSEN Deinki

We offer a full range of D-Sub Connectors tailored for various environments and electrical needs. If you’re exploring the M-Series, you may also want to check out these related offerings:

863-Series

The 863-Series D-Sub Connectors are designed with enhanced shielding and high-density pin layouts, making them ideal for compact designs that require maximum signal integrity in minimal space.

IDL-Series

The IDL-Series D-Sub Connectors provide insulation displacement termination (IDC), allowing for faster, solderless assembly. These connectors are perfect for ribbon cable terminations and high-speed signal routing.

Together, these series represent a complete suite of D-Sub Connector options to suit every application—from compact and cost-sensitive designs to robust, high-reliability systems.

Why Choose ESSEN Deinki D-Sub Connectors?

At ESSEN Deinki, we combine precision engineering with high-quality materials to deliver D-Sub Connectors that meet the performance and durability expectations of our customers across industries.

Made in India with global standards of quality

Customizable configurations available

Reliable mechanical and electrical performance

Full technical support and design consultation

Our D-Sub Connectors are trusted by OEMs, system integrators, and design engineers for their dependable connectivity and long service life.

Need Help Selecting the Right D-Sub Connector?

We’re here to help you find the perfect fit. Whether you need technical specifications, custom configurations, or volume pricing for your project, ESSEN Deinki is ready to support you.

Contact Us Today to discuss your application and get expert recommendations on the best D-Sub Connector solution.

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