Hunan Kaida Space Connectors

Updated 18 Jul 2026

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74 Products

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About Hunan Kaida Space Connectors

Hunan Kaida Space Connectors (KAIDA HOLDING LIMITED) is a leading Chinese manufacturer of military-grade electrical connectors, established in 1995 and headquartered in Hunan, China. The company specializes in circular and rectangular connectors that conform to both international military standards (MIL-C-5015, MIL-C-26482, MIL-DTL-38999) and Chinese military standards (GJB series), supplying defense, aerospace, marine, locomotive, and industrial sectors worldwide.

Founded on a foundation of precision engineering, KAIDA obtained its first ISO 9000 quality certification in 1997 and received Military Product Quality System Certification in 1999 and again in 2004, reflecting its deep commitment to quality assurance in mission-critical applications. In 2008, the company participated in drafting Chinese national military connector standards, cementing its role as a technical authority in the field.

KAIDA's product portfolio spans over 60 connector series including MIL-standard circular connectors, Y-series Chinese military circular connectors, XC-series springtac socket connectors, J-series rectangular connectors, marine-grade YM/YMC/YMG series, locomotive connectors, high-speed network connectors (YW series), and filter connectors. The company also manufactures precision connector components including hyperboloid sockets, twist pins, contacts, shells, and insulators.

With more than 300 long-term overseas customers and notable clients including HP, GE, Siemens, Panasonic, Souriau, and ABB, KAIDA has established itself as a trusted global supplier of high-reliability electrical interconnect solutions for the most demanding environments.

Company Info

Headquarters Hunan, China, China

Founded 1995 (31 years)

Specializations

manufacturer

Website kdconnector.com ↗

Products

Anti-misplug rectangle connector with EMI shielding and springtac contacts, designed for reliable high-density interconnect in demanding environments.

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Type	Rectangle electrical connector
Features	Anti-misplug keying, EMI shielding, springtac contacts
Operating temperature	-55…+125 °C
Relative humidity	95% at 40 °C
Vibration	196 m/s2 at 10 Hz ~ 2000 Hz
Shock	735 m/s2
Acceleration	735 m/s2
Rated current	3 A
Contact resistance	≤ 10 MΩ
Insulation resistance	≥ 5000 MΩ
Dielectric strength	800 V
Lifetime	≥ 500 cycles

The CXCH series circular electrical connector conforms to Chinese military connector standard GJB2889 and is extended from the XC series.

The CXCH-01 series circular electrical connector conforms to Chinese military connector standard GJB2889, extended from the XC series, and features bayonet coupling with solder or crimp springtac contacts.

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Standard	GJB2889
Coupling	bayonet coupling
Contacts	solder or crimp springtac contact

Copper-alloy hyperboloid (springtac) socket contacts with gold or silver plating for military circular connectors.

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Contact technology	Hyperboloid (springtac)
Material	Copper alloy CuZn40 C28000 or per specification
Surface treatment	Gold plating 0.2-1.27 um, silver plating, or per specification
Compatible standards	MIL-C-5015, MIL-C-26482, MIL-DTL-38999, GJB, Y-series and XC-series connectors
Current rating	Customizable per requirements
Insertion/extraction force	Standard or customizable per specification
Operating temperature	-55 °C ~ +125 °C
Durability	≥ 100 cycles
Vibration	10 ~ 2000 Hz
Shock	50 g

The J14 series rectangle electrical connector conforms to Chinese military connector standard Q/HD20037-2007, featuring a high-strength composite shell.

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Standard	Q/HD20037-2007
Material	high strong composite

High-strength composite shell rectangular connector conforming to Chinese military standard Q/HD20037-2007.

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Standard	Q/HD20037-2007 (Chinese military)
Shell material	High-strength composite
Contact type	J (pin), K (socket)
Connector type	T (plug), Z (receptacle)
Termination style	Solder (default), 90 deg elbow PCB (1), Straight PCB (2)
Mounting style	B (panel), L (cable)
Flange type	Normal (default), Narrow flange (1), Side mounting (2)
Modification codes	A, -38, Z, K, 1, B, 2

The J14B series is a rectangle electrical connector that conforms to the Chinese military connector standard GJB142A-94.

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Standard	GJB142A-94

The J14F series is a rectangle electrical connector conforming to Chinese military connector standard Q/HD20037-2007, designed with crimp contacts and higher contact density.

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Standard	Q/HD20037-2007

The J14H series is a rectangle electrical connector conforming to Chinese military connector standard Q/HD20037-2007, designed with solder contacts and higher contact density.

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Standard	Q/HD20037-2007

MIL-C-83513 compatible micro-D rectangular connector mateable with US MDM series, in 9 to 100 contact configurations.

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Standard	MIL-C-83513 / J30J
Contact counts	9, 15, 21, 25, 31, 37, 51, 66, 74, 100
Connector type	TJ (plug with pin), ZK (receptacle with socket)
Termination options	Crimp, Solder S, Straight PCB N, 90 deg elbow PCB W
Finish	Nickel plating (default), Cadmium plating G
Optional modifications	A (backshell + shielding clamp), D (anti-rotation flange), J (1.27x2.54 mm PCB grid), Q (broadened flange)
Mating compatibility	MDM series (USA)

Chinese military standard Q/HD20038-2007 rectangular connector with low-magnetism variant.

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Standard	Q/HD20038-2007 (Chinese military)
Type	A (standard), E (low magnetism)
Contact count	9, 15, 26, 38, 52, 62, 74
Connector type	Z (receptacle), T (plug)
Contact type	K (socket), K2 (socket straight PCB), J (pin), J2 (pin straight PCB)
Mounting style	B (panel), L (cable), B-1 (straight PCB + panel with locating bush)
Operating temperature	-55…+125 °C
Relative humidity	90% ~ 95%
Pressure	101.3 KPa ~ 1.33 Pa
Acceleration	980 m/s2
Shock	980 m/s2
Rated current	5 A
Insulation resistance	≥ 5000 MΩ
Withstanding voltage	1000 V
Lifetime	≥ 500 cycles

Chinese military standard GJB176A-97 rectangular connector, backward-compatible with J7A series.

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Standard	GJB176A-97 (Chinese military)
Temperature range min	-50 deg C
Number of contacts	9, 17, 26, 38, 50, 62, 72
Connector type	T (plug), Z (receptacle)
Contact type	J (pin), K (socket)
Outlet style	60 (double-circular) or single (default)
Orientation	I, II (normal = default)
Compatibility	Backward compatible with J7A series

Bayonet-coupled military circular connector with solder contacts conforming to MIL-C-26482 Series I.

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Standard	MIL-C-26482 Series I
Part number example	MS 3110 E 18-32 P N L
Shell types	3110 (wall mount), 3111 (cable), 3112 (box mount), 3114 (jam nut), 3116 (plug), 3117 (bulkhead)
Type codes	B, E, F, J, M, P, R
Shell sizes	08, 10, 12, 14, 16, 18, 20, 22, 24
Contact type	P (pin), S (socket)
Orientation options	N, W, X, Y, Z
Finish options	Cadmium standard, Black anodized A, Olive green cadmium B, Stainless steel S, Electroless nickel L

The MIL-C-26482 series I circular connector is designed for quick bayonet coupling, solder contact, small size, and medium contact density.

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Standard	MIL-C-26482 series I
Coupling	bayonet
Contacts	solder contact
Contacts (2)	medium contact density

The MIL-C-26482 Series II military standard connector is an upgrade to Series I, featuring bayonet coupling, rear-removable crimp contacts, and RFI shielding.

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Standard	MIL-C-26482 series II
Coupling	bayonet coupling
Contacts	rear-removable crimp contact
Shielding	RFI shielding

Upgraded bayonet-coupled MIL-C-26482 Series II circular connector with PCB contact options.

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Standard	MIL-C-26482 Series II
Part number example	MS 3474 W 18-6 P N
Shell types	3470 (narrow flange receptacle), 3471 (cable connecting), 3472 (wide flange), 3474 (jam nut), 3475 (RFI shielding plug), 3476 (straight plug)
Shell sizes	08, 10, 12, 14, 16, 18, 20, 22, 24
Contact type	P (crimp pin), S (crimp socket), PL (PCB pin), SL (PCB socket)
Orientation options	N, W, X, Y, Z
Finish options	Black anodized A, Electroless nickel L, Olive drab cadmium W, Stainless steel S, Olive green cadmium B

A series of military standard circular connectors designed for various applications, offering different shell types, service classes, and contact layouts.

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Shell material	Aluminum alloy
Shell plating	Olive drab cadmium or zinc plating
Insulator material	Synthetic rubber
Contact material	Copper alloy
Contact plating	Sliver plating
Gasket & grommet material	Synthetic rubber
Operating temperature	-55oC ~ +125oC
Sealing	Under water (6 feet in water): 48 hours per MIL-DTL-5015, 4.6.19. Meet 20 days extreme humidity testing per.
Durability	≥ 100 cycles
Salt spray	MIL-STD-1344 method 1001, condition B, ≥ 48 hours (Cadmium plating)
Heat	at +125oC, 60 hours; at +85oC, 1000 hours
Chemical resistance	in Hydraulic fluid or lubricating oil, 20 hours
Vibration	10 ~ 2000 Hz, acceleration: 10 g’s
Shock	acceleration: 50 g
Insulator resistance	+25oC ≥ 5000MΩ
Contact size 16 contact resistance	13 mΩ
Contact size 16 test current	16 A
Contact size 16 potential drop	49 mV
Contact size 16 outside dia. of insulation min.	0.064 inches (1.63 mm)
Contact size 16 outside dia. of insulation max.	0.130 inches (3.30 mm)
Contact size 16 retention	44 N (10 Lbs.)
Contact size 16 separation force min.	1 N (0.25 Lbs.)
Contact size 12 contact resistance	3 mΩ
Contact size 12 test current	23 A
Contact size 12 potential drop	42 mV
Contact size 12 outside dia. of insulation min.	0.114 inches (2.90 mm)
Contact size 12 outside dia. of insulation max.	0.170 inches (4.32 mm)
Contact size 12 retention	67 N (15 Lbs.)
Contact size 12 separation force min.	2 N (0.50 Lbs.)
Contact size 8 contact resistance	1 mΩ
Contact size 8 test current	46 A
Contact size 8 potential drop	26 mV
Contact size 8 outside dia. of insulation min.	0.164 inches (4.17 mm)
Contact size 8 outside dia. of insulation max.	0.255 inches (6.48 mm)
Contact size 8 retention	89 N (20 Lbs.)
Contact size 8 separation force min.	3 N (0.75 Lbs.)
Contact size 4 contact resistance	0.5 mΩ
Contact size 4 test current	80 A
Contact size 4 potential drop	23 mV
Contact size 4 outside dia. of insulation min.	0.275 inches (6.98 mm)
Contact size 4 outside dia. of insulation max.	0.370 inches (9.40 mm)
Contact size 4 retention	89 N (20 Lbs.)
Contact size 4 separation force min.	4 N (1.00 Lbs.)
Contact size 0 contact resistance	0.2 mΩ
Contact size 0 test current	150 A
Contact size 0 potential drop	21 mV
Contact size 0 outside dia. of insulation min.	0.415 inches (10.54 mm)
Contact size 0 outside dia. of insulation max.	0.550 inches (13.97 mm)
Contact size 0 retention	111 N (25 Lbs.)
Contact size 0 separation force min.	9 N (2.00 Lbs.)
Service class inst. operating voltage DC	250 V
Service class inst. operating voltage AC	200 V
Service class inst. test voltage AC	1000 V
Service class inst. air spacing nominal	－ inches
Service class inst. creepage nominal	1/16 inches
Service class a operating voltage DC	700 V
Service class a operating voltage AC	500 V
Service class a test voltage AC	2000 V
Service class a air spacing nominal	1/16 inches
Service class a creepage nominal	1/8 inches

The MIL-DTL-38999 series I circular connector is designed for quick bayonet coupling, solder contact, and removable crimp contact.

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Coupling	bayonet
Shielding	EMI/RFI

Bayonet-coupled MIL-DTL-38999 Series I connector with solder and removable crimp contacts.

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Standard	MIL-DTL-38999 Series I
Part number example	MS 27466 E 19 B 35 P N
Connector types	27467 (straight plug), 27466 (wall-mount sq. receptacle front), 27656 (wall-mount sq. receptacle rear), 27496 (box sq. receptacle front), 27505 (box sq. receptacle rear), 27468 (jam nut receptacle)
Shell sizes	09, 11, 13, 15, 17, 19, 21, 23, 25
Finish options	Olive green cadmium B, Black anodized C, Passivated stainless E, Electroless nickel F
Contact type	P (crimp pin), S (crimp socket), PH (solder pin), SH (solder socket), PL/PC (PCB pins), SL/SC (PCB sockets)
Orientation options	N (normal), A, B, C, D

The MIL-DTL-38999 series II circular connector is designed for quick bayonet coupling, solder contact, and removable crimp contact, offering EMI/RFI shielding and high contact density.

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Standard	MIL-DTL-38999 series II

Bayonet-coupled MIL-DTL-38999 Series II with shielded plug option and removable crimp contacts.

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Standard	MIL-DTL-38999 Series II
Connector types	27473 (plug), 27472 (wall-mount sq. receptacle front), 27497 (wall-mount sq. receptacle rear), 27513 (box sq. receptacle front), 27508 (box sq. receptacle rear), 27474 (jam nut receptacle), 27484 (shielded plug)
Shell sizes	08, 10, 12, 14, 16, 18, 20, 22, 24
Finish options	Olive green cadmium B, Black anodized C, Passivated stainless E, Electroless nickel F
Contact type	Crimp pin/socket, Solder pin/socket, PCB pins/sockets (long/short)
Orientation options	N (normal), A, B, C, D
Contact resistance #22D	≤ 12 mΩ
Contact current #22D	5.0 A
Contact resistance #20	≤ 5.0 mΩ
Contact current #20	7.5 A
Contact resistance #16	≤ 2.5 mΩ
Contact current #16	13.0 A
Contact resistance #12	≤ 1.5 mΩ
Contact current #12	23.0 A
EMI shielding 100MHz~1GHz	minimum attenuation 85 dB
EMI shielding 1GHz~10GHz	minimum attenuation 50 dB
Withstanding voltage (Sea level) M	1300 V
Withstanding voltage (Sea level) I	1800 V
Withstanding voltage (Sea level) II	2300 V
Insulation resistance Normal	≥ 5000 MΩ
Insulation resistance damp heat	≥ 100 MΩ
Endurance	500 cycles
Operating temperature B class	-65 °C ~ +175 °C
Operating temperature C, E, F class	-65 °C ~ +200 °C

Triple-start thread coupling MIL-DTL-38999 Series III connector with anti-decoupling mechanism.

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Standard	MIL-DTL-38999 Series III
Connector types	20 (square flange receptacle), 24 (jam nut receptacle), 26 (shielding plug)
Shell sizes	09/A, 11/B, 13/C, 15/D, 17/E, 19/F, 21/G, 23/H, 25/J
Finish options	Olive green cadmium W, Electroless nickel F, Stainless steel passivated K
Contact type	P (crimp pin), S (crimp socket), PH (solder pin), SH (solder socket), PL (long PCB pin), PC (short PCB pin), SL (long PCB socket), SC (short PCB socket)
Orientation options	N (normal), A, B, C, D
Coupling	Triple-start thread with anti-decoupling

The MIL-DTL-38999 series III circular connector features triple start thread coupling with anti-decoupling mechanism, solder and removable crimp contacts, and excellent environmental resistance.

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Standard	MIL-DTL-38999 series III
Coupling	triple start thread coupling with anti-decoupling mechanism
Contacts	solder contact and removable crimp contact
Shielding	EMI/RFI shielding

The MIL-DTL-38999 series IV circular connector is designed for breech lock with quick disconnect and removable crimp contacts.

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Shielding	EMI/RFI shielding with grounding

Breech-lock quick-disconnect MIL-DTL-38999 Series IV connector with hermetic options.

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Standard	MIL-DTL-38999 Series IV
Connector types	40 (wall mount sq. receptacle), 41 (hermetic), 42 (box mount), 43-44 (jam nut options), 45/48 (hermetic variants), 46 (shielding plug), 49 (in-line receptacle)
Shell sizes	11/B, 13/C, 15/D, 17/E, 19/F, 21/G, 23/H, 25/J
Finish options	Olive green cadmium on aluminum W, Electroless nickel on aluminum F, Hermetic electrodeposited nickel on stainless N, Hermetic electroless nickel on stainless Y, Electrodeposited nickel on stainless S, Passivated stainless K
Contact type	P (pin), S (socket)
Orientation options	N (normal), A, B, C, D
Coupling	Breech-lock (quick-disconnect)

A wall mounting receptacle with 5/8-24 UNF A Thread and 5/8-24NEF V Thread.

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A thread	5/8-24 UNF
B	9.53 Min
K min /max	1.58/3.96
L max	38.88
M+0.79/-0.00	14.28
R±0.12	18.26
S±0.79	25.40
T+0.25/-0.12	3.05
V thread	5/8-24NEF

A wall mounting receptacle with 3/4-20 UNEF A Thread and 5/8-24NEF V Thread.

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A thread	3/4-20 UNEF
B	15.88 Min
K min /max	1.58/3.96
L max	52.37
M+0.79/-0.00	19.05
R±0.12	20.62
S±0.79	27.79
T+0.25/-0.12	3.05
V thread	5/8-24NEF

A wall mounting receptacle with 3/4-20 UNEF A Thread and 5/8-24NEF V Thread.

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A thread	3/4-20 UNEF
B	9.53 Min
K min /max	1.58/3.96
L max	42.87
M+0.79/-0.00	14.28
R±0.12	20.62
S±0.79	27.79
T+0.25/-0.12	3.05
V thread	5/8-24NEF

A wall mounting receptacle with 7/8-20 UNEF A Thread and 3/4-20 UNEF V Thread.

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A thread	7/8-20 UNEF
B	15.88 Min
K min /max	1.58/3.96
L max	52.37
M+0.79/-0.00	19.05
R±0.12	23.01
S±0.79	30.18
T+0.25/-0.12	3.05
V thread	3/4-20 UNEF

A wall mounting receptacle with 7/8-20 UNEF A Thread and 3/4-20 UNEF V Thread.

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A thread	7/8-20 UNEF
B	9.53 Min
K min /max	1.58/3.96
L max	42.87
M+0.79/-0.00	14.28
R±0.12	23.01
S±0.79	30.18
T+0.25/-0.12	3.05
V thread	3/4-20 UNEF

A wall mounting receptacle with 1-20 UNEF A Thread and 7/8-20 UNEF V Thread.

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A thread	1-20 UNEF
B	15.88 Min
K min /max	1.58/3.96
L max	52.37
M+0.79/-0.00	19.05
R±0.12	24.61
S±0.79	32.54
T+0.25/-0.12	3.05
V thread	7/8-20 UNEF

A wall mounting receptacle with 1-20 UNEF A Thread and 7/8-20 UNEF V Thread.

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A thread	1-20 UNEF
B	9.53 Min
K min /max	1.58/3.96
L max	42.87
M+0.79/-0.00	14.28
R±0.12	24.61
S±0.79	32.54
T+0.25/-0.12	3.05
V thread	7/8-20 UNEF

A wall mounting receptacle with 1 1/8-18 NEF A Thread.

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A thread	1 1/8-18 NEF
B	15.88 Min
K min /max	2.39/5.15
L max	52.37
M+0.79/-0.00	19.05
R±0.12	26.9

The CJ10 series rectangle electrical connector is a professional-grade military standard connector designed for various applications.

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Series	CJ10
Type of connector (Single)	Z = Receptacle with socket, T = Plug with pin
Contact number (Single)	6~67
Type of termination (Single)	H = Solder
Back shell (Single)	1, 3 = Without back shell, 4 = With back shell
Finish of contact (Single)	J = Gold plating, Omit = Silver plating
Finish of shell (Single)	D 1 = Nickel electroless plating, Omit = Chemical oxidation
Type of connector (Double)	Z = Receptacle with socket, T = Plug with pin
Contact number of left (Double)	06~67
Contact number of right (Double)	06~67
Type of termination (Double)	H = Solder
Back shell (Double)	1, 3 = Without back shell, 4 = With back shell

Rectangle electrical connector conforming to military connector standard ARINC600 — for demanding aerospace and defense interconnect applications.

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Standard	ARINC600
Type	Rectangle electrical connector
Operating temperature	-55~+125 °C
Relative humidity	95% at 40 °C
Vibration	196 m/s2 at 10~2000 Hz
Shock	735 m/s2
Acceleration	735 m/s2
Rated current	3 A
Contact resistance	≤ 10 MΩ
Insulation resistance	≥ 5000 MΩ
Dielectric strength	800 V
Lifetime	≥ 500 cycles

Professional manufacturer of military standard twist pin contacts, available in various standard dimensions with a lead time of approximately 10-15 days.

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D	Φ 0.72
D (2)	Φ 0.42
L0	1.3
L1	1.3
L	4.6
D (3)	Φ 0.78
D (4)	Φ 0.51
L0 (2)	1.6
L1 (2)	2.0
L (2)	5.3
D (5)	Φ 0.92
D (6)	Φ 0.68

Military-grade twist pin contacts for circular connectors in three standard dimensions, approx. 10-15 day lead time.

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No. 1 outer diameter d	0.72 mm
No. 1 inner diameter d	0.42 mm
No. 1 length l0	1.3 mm
No. 1 length l1	1.3 mm
No. 1 total length l	4.6 mm
No. 2 outer diameter d	0.78 mm
No. 2 inner diameter d	0.51 mm
No. 2 length l0	1.6 mm
No. 2 length l1	2.0 mm
No. 2 total length l	5.3 mm
No. 3 outer diameter d	0.92 mm
No. 3 inner diameter d	0.68 mm
No. 3 length l0	2.0 mm
No. 3 length l1	2.2 mm
No. 3 total length l	7.5 mm
Lead time	approx. 10-15 days (standard)

The XC series circular electrical connector conforms to Chinese military connector standard GJB2889 and features bayonet coupling, solder or crimp contacts, and springtac sockets.

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Standard	GJB2889

Chinese military standard GJB2889 circular connector with springtac hyperboloid socket contacts and bayonet coupling.

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Standard	GJB2889 (Chinese military)
Shell sizes	14, 18, 22, 24, 27, 30, 33, 36, 39
Connector types	T (plug with crimp), F (square flange receptacle), Y (circular receptacle), S (jam nut hermetic), S1/S2 (square flange hermetic)
Contact count	01 to 62
Contact type	Z/Z1 (silver/gold pins), K/K1 (silver/gold sockets), M/M1 (hermetic silver/gold)
Contact technology	Springtac (hyperboloid) socket
Finish options	Black anodized, Electroless nickel, Olive-drab zinc plating
Coupling	Bayonet

The XCA series circular electrical connector conforms to Chinese military connector standard GJB2889 and is designed with bayonet coupling, solder or crimp springtac contact.

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Standard	GJB2889
Coupling	bayonet
Contacts	solder or crimp springtac

The XCD series circular electrical connector conforms to Chinese military connector standard GJB2889 and is extended from the XC series.

The XCE series circular electrical connector conforms to Chinese military standard GJB2889, offering smaller weight, volume, and higher contact density compared to the XC series.

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Standard	GJB2889
Coupling	bayonet

The XCF series circular electrical connector conforms to Chinese military connector standard GJB2889 and is designed with bayonet coupling, solder or crimp springtac contact.

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Standard	GJB2889
Coupling	bayonet

The XCG series circular electrical connector conforms to Chinese military connector standard GJB2889 and is an extension of the XC series.

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Standard	GJB2889
Coupling	bayonet coupling
Contacts	solder or crimp springtac contact

The XCM series circular electrical connector conforms to Chinese military connector standard GJB2889 and is designed with bayonet coupling, solder contact, and springtac socket.

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Standard	GJB2889
Coupling	bayonet coupling
Contacts	solder contact and springtac socket

The Y11 series circular electrical connector conforms to Chinese military standard GJB101A-1997, featuring quick interior bayonet coupling, small size, light weight, and solder contacts.

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Standard	GJB101A-1997
Coupling	bayonet coupling quick release

The Y16 series circular electrical connector conforms to Chinese military connector standard Q/HD20030-2006 and is designed with center bolt coupling.

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Standard	Q/HD20030-2006
Coupling	center bolt coupling

The Y17 series circular electrical connector conforms to Chinese military connector standard Q/Ag1.027A-2006 and is designed for bayonet coupling, mainly suited for big power current applications.

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Standard	Q/Ag1.027 A-2006
Coupling	bayonet

The Y18 series circular electrical connector conforms to Chinese military connector standard Q/Ag1.028-2004, featuring thread coupling, high contact density, small size, and light weight.

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Standard	Q/Ag1.028-2004
Coupling	thread coupling

The Y2 series circular electrical connector conforms to Chinese military connector standard Q/321283LSC02-2007 and features quick bayonet coupling, solder contacts, and a hermetic receptacle.

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Standard	Q/321283LSC02-2007
Coupling	bayonet

Chinese military standard Y2 circular connector with bayonet coupling conforming to Q/321283LSC02-2007, up to 120 contacts.

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Standard	Q/321283LSC02-2007 (Chinese military)
Number of contacts	2, 3, 4, 5, 7, 10, 14, 19, 24, 32, 36, 37, 50, 65, 81, 120
Connector type	T (plug), Z (receptacle)
Contact type	J (pin), K (socket)
Receptacle style	L (cable connecting), B (square flange)
Sealing option	M (hermetic with sealant reperfusion)
Coupling	Bayonet quick-lock

The Y23 series circular electrical connector conforms to Chinese military connector standard GJB599A and American military connector standard MIL-DTL-38999 series IV.

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Standard	GJB599A
Standard (2)	MIL-DTL-38999 series IV

The Y24 series circular electrical connector conforms to Chinese military connector standard Q/Ag1.084.1-2006 and features thread coupling, rain-proof, dust-proof, and shielding shell designs.

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The Y25 series circular electrical connector conforms to Chinese military connector standard Q/Ag1.087.1-2002 and features thread coupling, rain-proof, dust-proof, and shielding shell design.

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Circular electrical connector conforming to Chinese military connector standard GJB2905-2004 — for aerospace and defense interconnect applications.

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The Y27 series circular electrical connector from Hunan Kaida Space Connectors features a push-pull locking mechanism and conforms to Chinese military connector standard GJB2905-2004.

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The Y2PX series circular electrical connector conforms to Chinese military connector standard HB6-77-83 and features bayonet coupling and shielding.

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The Y3 series circular electrical connector conforms to Chinese military connector standard Q/Ag1.003-2002 and features a straight insert locking and pull release design.

The Y3A series circular electrical connector conforms to Chinese military connector standards GJB2905-2004 and GJB101A-97.

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The Y3B series circular electrical connector conforms to Chinese military connector standards GJB2905-2004 and GJB101A-97, offering a higher working current than the Y3A series.

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The Y4 series circular electrical connector conforms to Chinese military connector standard Q/Ag1.004-2000 and features a thread coupling and hermetic receptacle design.

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Thread-coupled Chinese military standard Y4 circular connector with hermetic receptacle option, conforming to Q/Ag1.004-2000.

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The Y50DX series circular electrical connector conforms to Chinese military connector standard GJB101A-97, offering bayonet coupling, small volume, high density, and big current capabilities.

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The Y50EX series circular electrical connector conforms to Chinese military connector standard GJB598A-96, featuring a bayonet coupling, small volume, and high density.

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The Y50PD series circular electrical connector conforms to Chinese military connector standard GJB101A-97 and is an upgrade from the Y50EX series, featuring bayonet coupling, solder contact, and big current capabilities.

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The Y50X series circular electrical connector conforms to Chinese military connector standard GJB101A-1997, featuring bayonet coupling, small volume, and high density.

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The YGD series circular electrical connector conforms to Chinese military connector standard GJB5371-2005 and features bayonet coupling with solder springtac contacts.

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The YGP series circular electrical connector is an upgrade to the P series, featuring bayonet coupling and solder springtac contacts.

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The YL series circular electrical connector conforms to Chinese military standard GJB598A-1996, featuring bayonet coupling, solder contacts, and high contact density.

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The YL11 series circular electrical connector conforms to Chinese military connector standard GJB101A-1997, featuring bayonet coupling, rain-proof design, small size, and high density.

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The YLD series circular electrical connector conforms to Chinese military connector standard GJB101A-1997 and is an upgrade from the YL11 series, designed with bayonet coupling.

The YPM4 series circular electrical connector conforms to the Russian military connector standard ÐE0.364.196.TY, designed for robust performance in demanding environments.

The YQ2 series circular electrical connector conforms to Chinese military connector standard GJB598A and is designed with bayonet coupling.

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The YXK series circular electrical connector conforms to Chinese military connector standards HB6112-86 and HB6-77-83, featuring bayonet coupling, small volume, and solder or crimp contacts.

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Basic series	Y27
Type	Q, A, B, C, F, G, H (Omit = Q, H = Springtac contact)
Orientation	I, II, III, IV, V, VI (Omit = I)
Shell size	08, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30
Number of contact	01 ~ 61
Type of connector	T = Plug, Z = Receptacle
Type of contact	J = Pin, K = Socket
Type of receptacle	L = Cable connecting receptacle, B/B1 = Square flange receptacle, B2 = Jam nut receptacle, B4 = Thru bulkhead receptacle
Type of hermetic	M = Hermetic by rubber, P or omit = Unsealed
Type of back shell	Omit = Without back shell, II, III, IV, IX
Material of shell	Omit = Aluminium-alloy, B = Stainless steel, C = Cooper-alloy

Standard	GJB2905-2004 (Chinese military standard)
Type	Circular electrical connector
Operating temperature	-55 °C ~ +200 °C
Relative humidity	90% ~ 95%
Working height	≤ 3000 m
Vibration	10 ~ 2000 Hz, acceleration: 196 m/s²
Endurance	≥ 1000 cycles
Insulation resistance	≥ 5000 MΩ

Standard	GJB2905-2004 and GJB101A-97
Coupling	push-pull
Shielding	EMI/RFI

Standard	Q/Ag1.004-2000 (Chinese military)
Number of contacts	2, 3, 4, 5, 7
Connector type	T (plug), Z (receptacle)
Contact type	J (pin), K (socket)
Back shell style	L (cable connecting), B (square flange)
Sealing option	M (hermetic receptacle)
Material and finish	P (aluminum alloy + nickel plating), P1 (aluminum alloy + electroless nickel), S (copper alloy + electroless nickel)
Coupling	Thread coupling

Standard	GJB101A-97
Coupling	bayonet coupling
Contacts	solder contact

Standard	GJB5371-2005
Coupling	bayonet coupling
Contacts	solder springtac contact

Standard	GJB598A-1996
Coupling	bayonet coupling
Contacts	solder contact

Standard	HB6112-86 and HB6-77-83
Coupling	bayonet coupling
Contacts	solder or crimp contact

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