Cannon MKJ Series: Reduction in weight and
size without loss of reliability
The MKJ family of mini-circular connectors provides similar electrical
and mechanical characteristics as larger and heavier Military Standard
Environmental connectors.
ITT Cannon continues its tradition of innovation with the
MKJ line of miniature circular connectors. MKJ products
tackle your matrix of harsh environment applications.
These connectors offer three coupling methods (threaded,
bayonet and breakaway) in a highly engineered design
with reduced weight by 71% and size by 52% without
sacrificing the environmental performance or reliability.*
Bringing together a unique combination of design,
functionality and flexibility, the MKJ excels in delivering
a product for a broad variety of harsh environment
applications. The MKJ series comes with rear accessory
threads or integral band platform for direct attachment
of cable shield and overmold. MKJ provides unparalleled
functionality for numerous applications across multiple
markets including Industrial, Defense and Aerospace.
Why customers benefit from choosing
ITT Cannon's MKJ connectors:
• Available in rear-release crimp, PC tail or soldercup
contacts
• Shells and jam nuts available in aluminum alloy or
corrosion resistant stainless steel (AMS-QQ-S 763)
• Up to 2000 mating cycles
Technical Overview
For size 23 contact
Max Vibration 200 m/s
2
(20 g’s) rms
#22 - #28 AWG wire
Max. current 5 Amps / max. voltage 500 VAC
-55°C to +150°C / -67°F to +300°F
Our products do what we say they will do
Contact Availability
Integral Band Platform
Offered in crimp, PC tail and
soldercup contact designs
with proven reliability in harsh
environment conditions.
Contacts meet stanard
MIL-C-39029.
Intergral band platform allows
direct attachment of cable
shield to connector.
4
4
MKJ 1 and 5 Robust
Coupling Mechanism
Tooling & Accessory
Options
4
MKJ’s internal ratchet
mechanism system meets the
robust MIL-DTL-38999 shock
and vibration requirement
and is well suited for harsh
environment applications.
4
Dust cap and backshells
maintain the rear environmental
sealing, crimp, contact insertion/
extraction and banding tools
are also available.
Multiple Keying Positions
High Density Connector
4
Master Key and 2 secondary
keys. Multiple clocking
positions available.
4
Connector uses size 23 contacts
accepting #22 to #28 wire.
Contacts spacing is reduced to
0.076 inches providing a
compact yet robust package.
*When compared to the 38999 layouts with size 22 contacts.
How to Order Guide
Configurator
MKJ1
Series
A
Class
7
Shell Style
F
Material/
Plating
9-19
Shell Size
Contact
Arrangement
P
Contact
Style
A
Shell
Clocking
**
Modifications
SERIES
MKJ0 - Threaded Coupling, UN Thread
MKJ1 - Threaded Coupling, Double Start ACME Thread
MKJ3 - Bayonet Coupling
MKJ4 - Breakaway/Quick Disconnect
MKJ5 - Threaded Coupling, Triple Start ACME Thread
CLASS
A - Environmental Plug & Receptacle with Banding/Overmolding Attachment
B - Environmental Plug & Receptacle with Threaded Accessory Attachment
C - Back-Potted Plug/Receptacle - PC/Flex/Solder
D - C Filtered Receptacle - Fixed Contacts
E-
F-
G-
H-
L Filtered Receptacle - Fixed Contacts
Pi Filtered Receptacle - Fixed Contacts
Space
Hermetically Sealed Receptacle - Fixed Contacts
Jam Nut Receptacle - Front Panel Mount (MKJ4 series only)
Jam Nut Plug - Rear Panel Mount (MKJ4 series only)
Jam Nut Plug - Front Panel Mount (MKJ4 series only)
Straight Plug with Self-Locking Coupling Nut (MKJ0 series only)
Straight Plug with Self-Ratchet Coupling Nut (MKJ1 series only)
SHELL STYLE
1 - In-Line Receptacle
2 - Box Mount Receptacle (Square Flange)
3 - Receptacle, Round, Solder Mount
4 - Box Mount Plug (Flange)
6 - Straight Plug
7 - Jam Nut Receptacle - Rear Panel Mount
8 -
9 -
10 -
16 -
26 -
MATERIAL/PLATING
C - Aluminum/Anodize, Black
F - Aluminum/Electroless Nickel
K - Stainless Steel/Passivated
T - Aluminum/Teflon Nickel
W - Aluminum/OD Cad
Y - Stainless Steel/Electroless Nickel, Black
Z - Aluminum/Zinc Nickel, Black
N - Stainless Steel/Electroless Nickel
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ0, MKJ1, MKJ3, MKJ4
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ0, MKJ3, MKJ4, MKJ5
Series MKJ0, MKJ3, MKJ4
Series MKJ5
Series MKJ0, MKJ3, MKJ4
SHELL SIZE & CONTACT ARRANGEMENT
5-3
6-1
6-4
6-6
6-7
6-23
7-1
7-10
7-25
8-1
8-2
8-4
8-6
8-7
8-13
8-23
8-28
9-1
9-4
9-10
9-19
9-25
9-210
10-2
10-2
10-5
10-13
10-26
10-28
11-4
11-19
11-210
12-2
12-3
12-5
12-7
3
1
4
6
7
3
1
10
5
1
2
4
6
7
13
3
8
1
4
10
19
5
10
2
2
5
13
26
8
4
19
10
2
3
5
7
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
Size
23
16
23
23
23
20
12
23
20
16
16
23
23
23
23
20
20
12
16
23
23
20
20
16
12
16
23
23
20
16
23
20
12
12
16
16
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
12-26
12-37
12-220
13-2
13-3
13-7
13-37
13-220
14-5
14-12
14-55
14-235
15-2
15-3
15-7
15-37
15-55
15-220
15-241
16-5
16-12
16-55
16-235
17-7
17-14
17-85
17-241
18-5
18-12
18-55
18-235
19-7
19-14
19-85
19-241
26 Size
37 Size
20 Size
2 Size
3 Size
7 Size
37 Size
20 Size
5 Size
12 Size
55 Size
35 Size
2 Size
3 Size
7 Size
37 Size
55 Size
20 Size
41 Size
5 Size
12 Size
55 Size
35 Size
7 Size
14 Size
85 Size
41 Size
5 Size
12 Size
55 Size
35 Size
7 Size
14 Size
85 Size
41 Size
23
23
20
12
12
16
23
20
12
16
23
20
12
12
16
23
23
20
20
12
16
23
20
12
16
23
20
12
16
23
20
12
16
23
20
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Contacts
Series MKJ5
Series MKJ0, MKJ3, MKJ4
Series MKJ0, MKJ3, MKJ4
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ3, MKJ4
Series MKJ3, MKJ4
Series MKJ3, MKJ4
Series MKJ3, MKJ4
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ0, MKJ3, MKJ4
Series MKJ5
Series MKJ3, MKJ4
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ1
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ5
Series MKJ5
CONTACT STYLE
P - Pin, Crimp, Removale (For Class A & B only)
S - Socket, Crimp, Removable (For Class A & B only)
A - Pin, PC Tail, .062 Extension (For Class C through G only)
B - Pin, PC Tail, .109 Extension (For Class C through G only)
C - Socket, PC Tail, .062 Extension (For Class C through G only)
D - Socket, PC Tail, .109 Extension (For Class C through G only)
E - Pin, Solder Cup (For Class C through G only)
F - Socket, Solder Cup (For Class C through G only)
MKJ4 Series
Omit for Single Key/Keyway
A - Normal
B - Clocking Position B
C - Clocking Position C
D - Clocking Position D
E - Clocking Position E
F - Clocking Position F
A - Normal
B - Clocking Position B
C - Clocking Position C
D - Clocking Position D
E - Clocking Position E
F - Clocking Position F
SHELL CLOCKING (POSITION)
MKJ0 Series
N - Normal
X - Clocking Position X
Y - Clocking Position Y
Z - Clocking Position Z
A - Normal
B - Clocking Position B
C - Clocking Position C
D - Clocking Position D
E - Clocking Position E
F - Clocking Position F
N - Normal
X - Clocking Position X
Y - Clocking Position Y
Z - Clocking Position Z
150° -
75° -
95° -
140° -
75° -
95° -
150° -
75° -
95° -
140° -
75° -
95° -
210°
210°
230°
275°
275°
210°
210°
210°
230°
275°
275°
210°
MKJ1 Series
MKJ3 Series
150° -
75° -
95° -
140° -
75° -
95° -
150° -
75° -
95° -
140° -
210°
210°
230°
275°
275°
210°
210°
210°
230°
275°
MKJ5 Series
MODIFICATION CODE
F0 - Less Contacts (“F0” not stamped on the connector, but must
be included on the P.O.)
Capacitance Codes (pF)
A - 19,000 - 28,000
D - 4,000 - 6,000
F - 400 - 650
B - 16,000 - 22,500
E - 1,650 - 2,500
G - 200 - 300
C - 9,000 - 16,500
518 - Class “C” PC style back potted receptacle connectors
with water immersion testing.
Consult factory for other modification codes
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