Home ITT Cannon MIL-DTL-38999 Connectors KJB Series MIL-DTL-38999 Series III Connectors

ITT Cannon KJB Series MIL-DTL-38999 Series III Connectors

ITT Cannon KJB MIL-DTL-38999 Series III Connectors

INTERMATEABLE WITH SOURIAU CONNECTORS & ALL MIL-DTL-38999 SERIES III

ITT Cannon KJB series MIL-DTL-38999 series III connectors offer high-density contact arrangements in a light-weight miniature circular connector. ITT Cannon KJB series connectors have quick-mating, triple-lead threaded, self-locking coupling, are environmentally-sealed and operate across a wide temperature range. ITT Cannon KJB series connectors were originally designed for military vehicles and are now industry standard aerospace and military connectors. KJB series connectors are intermateable with Souriau connectors and all MIL-DTL-38999 series III connectors. A variety of D38999 backshells are available for these mil spec ITT Cannon plugs. For full product details on the KJB series MIL-DTL-38999 series III, please see the specifications below.

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FEATURES

ITT CANNON KJB SERIES FEATURES

  • High Reliability
    D38999 – KJB-style connectors are used in performance aircraft that demand reliable connections in some of the most rigorous environments. The connectors must perform flawlessly under wide temperature ranges, high vibrations, and be resistant to a vast array of contaminants. Visual confirmation of complete mating is accomplished by the plug coupling nut covering a red band on the mating shell.

  • Outstanding EMI Shielding Protection
    These connectors provide excellent signal integrity due to the shielded mating system that utilizes 360-degree shell grounding fingers, providing protection of up to 65 dB at 10 GHz.

  • Operates at Extreme Temperatures
    These connectors will operate in temperatures from -65°C up to 200°C (-85°F up to 392°F).

  • High-Density Connectors
    If space and weight are at a premium, KJB connectors offer up to 128 contacts per connector. Ideally suited for the demands of today’s digital electronics used on aircraft, advanced robotics, and critical industrial equipment.

  • Self-Locking Connector System
    Self-locking coupling nuts and self-locking endbell accessory hardware provide the best performance for threaded connectors in high-vibration applications.

  • Broad Range of Military and Commercial Accessories
    Many military standard endbells to M85049 specifications and a wide array of cable termination styles are available. Straight, 45, and 90-degree endbells come in many styles, from standard clamp to shielded environmentally-sealed and everything in between.

  • Contact Protection
    KJB connectors are designed to be scoop-proof. Pin contacts are recessed to prevent contact damage and contact shorting when connector halves are mated.

  • Contact Retention Clips
    KJB’s utilize all-metal contact retention tines, which assure the highest level of serviceability and unparalleled contact retention.

  • MIL-DTL-38999 Approved
    KJB’s are fully intermatable and intermountable with all other MIL-DTL- 38999 Series III connectors.



MATERIALS & FINISHES

ITT CANNON KJB SERIES MATERIALS & FINISHES
Shell
Aluminum Alloy or Composite
Plating
W - Olive Drab Chromate over Cadmium over Electroless Nickel per QQ-P-416
F - Electroless Nickel per QQ-N-290
J - Composite, Olive Drab over Cadmium over Electroless Nickel
M - Composite, Electroless Nickel
T69 -Green Zinc Cobalt
A297 - Black Electroless Nickel
A296 - Black Zinc Cobalt
G - Space Grade Outgassed
Contacts
Copper alloy
Plating
Gold plate, 50 microinches per MIL-G-45204 type II, grade C, class 1
Insulator
Hard plastic wafer which contains metal retention tines for high-reliability retention of crimp contacts
Grommet & Seals
Silicone-based elastomer
Grounding Springs
Beryllium copper (grounded plug only)


ELECTRICAL DATA

ITT CANNON KJB SERIES ELECTRICAL DATA
Operating Voltage
(Vac rms) & Test Voltage (Unmated Condition)

Service Rating

Test Voltages

N

M

I

II

Sea Level

1000

1300

1800

2300

100,000 feet

200

200

200

200



Current Rating by contact size and wire accomodations (Test Amps)

Wire Size

22D

20

16

12

28

1.5

-

-

-

26

2.0

-

-

-

24

3.0

3.0

-

-

22

5.0

5.0

-

-

20

-

7.5

7.5

-

18

-

-

10.0

-

16

-

-

13.0

-

14

-

-

-

17.0

12

-

-

-

23.0



Contact Resistance of mated contacts end-to-end

Contact Size

Maximum Millivolt Drop

22D

73

20

55

16

49

12

42


Insulation Resistance
5,000 megohms minimum

MECHANICAL

ITT CANNON KJB SERIES MECHANICAL
Operating Temperature
W, T69, A296, A297 plating -65° to 175°C (-87°F to 347°F)
F + G plating -65°C to 200°C (-85°F to 392°F)
Sealing
Against sand, dust per MIL-STD-202 & ice

Wire Sealing Range

Contact Size

Minimum (Inches)

Maximum (Inches)

Minimum (mm)

Maximum (mm)

22D

0.03

0.054

0.76

1.37

20

0.040

0.083

1.02

2.11

16

0.065

0.109

1.65

2.77

12

0.097

0.142

2.46

3.61

8

0.135

0.155

3.43

3.74



Insulation Strip Length

Contact Size

Strip Length Inches (mm)

22D

.125 (3.18)

20

.188 (4.77)

16

.188 (4.77)

12

.188 (4.77)


Mating Life
500 cycles minimum
Salt Spray
Finish W: 500-hour per MIL-STD-1344A method 1001 condition C
Finish F & G, T69, A296: 48-hour per MIL-STD-1344A method 1001 condition B
Finish A297: 192 hour
Finish J & M: 1000-hour per MIL-STD-1344A method 1001 condition C
Temperature Durability
Finish W, T69, A296, A297: 175°C (347°F), Finish F: 200°C (392°F), mated, wired test period 1000 hours to MIL-STD-1344 Method 1005
Chemical Resistance
Lubricating oils, hydraulic fluids, coolants, deicing fluids per MIL-STD-1344A Method 1016 condition a - I
Sine Vibration
60g at -65°C to +200°C (-85°F to +392°F) ambient temperature with stimulated accessory load
Random Vibration
49.5 grms at ambient temperatures
Shock
300 grms
EMI Shielding Effectiveness
100 MHz to 10 GHz - minimum attenuation of 50 dB
Contact Type
Crimp, fiber optic, coax, twinax or printed circuit
Number of Circuits
3 to 128
Contact Insertion
Insertion from rear of connector with simple plastic or high-quality metal hand tool. Extraction from rear with simple plastic or high-quality metal hand tools.
Contact Retention
Per MIL-DTL-38999 tested to MIL-STD-1344A method 2007

Contact

Axial Load Newtons +/-10%

Axial Load Pounds +/-10%

22D

44

10

20

67

15

16

112

25

12

111

25



Polarization
Five keyways with optional minor keyways rotation (Note insert and main keyway remain fixed)
Approvals
MIL-DTL-38999

CROSS SECTION

ITT CANNON KJB SERIES CROSS SECTION

 
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