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MKJ Series Connectors

Small form fit, ruggedised circular connectors offering unparalleled functionality for size constraint applications.

Product Features & Specifications:

  • 71% weight and 52% size reduction without the loss of reliability
  • Available in rear-release crimp, PC tail or solder cup contacts
  • Shells and jam nuts available in aluminum alloy or corrosion resistant stainless steel
  • Up to 2,000 mating cycles
  • Environmentally sealed using fluorosilicone material for the front interfacial seal and rear wire sealing grommet
  • RoHS Compliant.
Coupling MKJ 0 UNC Thread MKJ 1 Double Start MKJ 3 Bayonet MKJ 4 Breakaway MKJ 5 Triple Start
Markets & Segments Defense, Aerospace, Medical, Industrial, Commercial
Hardware Aluminum /Stainless Steel Aluminum /Stainless Steel Aluminum /Stainless Steel Aluminum /Stainless Steel Aluminum /Stainless Steel
EMI Shielding Effectiveness 40dB Attenuation, 100MHz to 1000MHz
Mating Cycles 2000 2000 250 Aluminum
2000 Stainless Steel
2000 2000
RoHS Compliant Available
 Materials

Shells - Aluminum Alloy
Insulators - Thermoplastic
Seals - Fluorosilicone
Contacts - Copper Alloy with gold over nickel plating

Product Performance:

 MKJ Series Performance
Contact Size #23 #20HD #16 #12
Spacing .076" .106" .170" .230"
Contact Type Rear Crimp, Solder Cup, PCB Mount
Current Rating 5 Amps 7.5 Amps 13 Amps 23 Amps
Wire Accommodation #22 - #28 AWG #20 - #24 AWG #16 - #20 AWG #12 - #14 AWG
DWV Voltage (VAC) 750 VAC 1000 VAC 1800 VAC 1800 VAC
Insulation Resistance 5000 Megaohms RMS Sea
Operating Temperature -65ºC to +175ºC
Contact Resistance 8 Milliohms Maximum
Shock/Vibration 300g / 37g
Clocking Position Master Key and 2 Secondary Keys. 6 Clocking Positions
Housing Materials Aluminum and Stainless Steel
Receptacle Mounting Jam Nut, Square Flange, In-Line

MKJ0 UN Thread

Product Description

Part of our innovative family of MKJ Miniature Circular Connectors, the MKJ0 UN Thread is a lightweight, high density solution that features threaded coupling and uses removable size 23 contacts on .076 spacing. It is up to 52% smaller and 71% lighter than standard military-grade connectors and offers highly engineered design, performance and reliability, but in a much smaller design package. Our MKJ Connector Series Connectors also come with rear accessory threads or integral band platform for direct attachment of cable shield and overmould.

MKJ1 Double Start

Product Description

Cannon’s MKJ1 Double Start offers threaded coupling features and high density size 23 machined contacts for crimp and PCB. Part of the MKJ Series of Miniature Circular Connectors, it is up to 52% smaller and 71% lighter than standard military-grade connectors and offers highly engineered design, performance and reliability, but in lightweight, space-saving design.

MKJ3 Bayonet

Product Description

At half the size and weight of traditional military standard connectors, MKJ3 Bayonet features threaded coupling with high density size 23 machined contacts for crimp and PCB. Bringing together a unique combination of design, functionality and flexibility, Cannon’s MKJ3 Bayonet offers proven, reliable and cost-effective interconnect solutions that enable critical communication, navigation and high speed data transmission in the harshest environments.

MKJ4 Breakaway (Quick Disconnect)

Product Description

Part of the MKJ family of miniature circular connectors, ITT Cannon’s MKJ4 Breakaway features a canted retention spring disconnect coupling mechanism. This durable coupling mechanism allows for quick and easy mating and de-mating. MKJ4’s versatility, performance and reliability enable unparalleled functionality to support critical communication, navigation and high-speed data transmission needs, at half the size and weight of traditional connectors.*

*When compared to the 38999 layouts with size 22 contacts

MKJ5 Triple Start Ratchet

Product Description

ITT Cannon’s innovative MKJ5 features threaded coupling with high density size 23 machined contacts for crimp and PCB. Its unique triple-start threaded coupling mechanism allows MKJ5 to quickly connect and disconnect, up to 500 cycles, while maintaining performance under sustained shock and vibration conditions. The MKJ5 offers flexibility in configuration options for connectivity, multiple keying positions, and rear accessory threads or integral band platforms. It meets customer requirements for extended cycles in robust shock and vibration environments through its high-reliability internal ratchet mechanism system.

Video:

Soldier Worn Connectors

MKJ series