Specifications

Shell	Aluminum Alloy
Shell Finishing	Electroless Nickel Plating, covered with military green paint
Insulator	Thermoplastic Plastic
Sealing Ring	Silicone Rubber, Nitrile Rubber
Contact	Gold-Plated Copper Alloy Ordinary Contacts (Solder Cup) Coaxial Contacts (Crimp)
Mechanical Life	500 cycles
Electromagnetic Demating	27 ± 3 V(DC)
Mechanical Dematng	120 N ~ 200 N
Vibration	Sinusoidal Vibration: Frequency 10 ~ 2000Hz, Acceleration 200m/s² Constant Frequency Vibration: Frequency 50Hz, 260Hz, Power Spectral Density 200m/s²
Shock	1 ms Half-sine Wave Peak Acceleration 1200 m/s²
Acceleration	Peak Acceleration 490 m/s²
Operating Temperature	-55℃ ~ +125℃
Salt Spray Test	48 h
Relative Humidity	At 40℃ ± 2℃: 92% ~ 98%
Rain Test	Rainfall Intensity 5 mm/min
Flameproof	The socket’s mating surface can withstand a high temperature of 2000℃ for 2 seconds
Air Tightness	The sealed socket can withstand 2MPa

Electrical Ratings

Contact Resistance and Rated Current

Contact Specifications	Contact Resistance mΩ			Rated Current	Characteristic Impedance
Contact Specifications	Single-layer	Sealing	Triple-layer	Rated Current	Characteristic Impedance
Φ1.0mm	≤ 7 mΩ	≤ 7 mΩ	≤ 20 mΩ	5 A	——
Φ2.0mm	≤ 5 mΩ	≤ 5 mΩ	≤ 15 mΩ	20 A	——
Φ3.5mm	≤ 3 mΩ	≤ 3 mΩ	≤ 10 mΩ	40 A	——
1553B	Center, Intermediate Conductor ≤55 mΩ，Outer Conductor ≤6.25 mΩ			——	75 Ω
Ethernet	Inner Conductor ≤ 15 mΩ, Outer Conductor ≤ 3 mΩ			——	100 Ω
12#Coaxial	Inner Conductor ≤ 55 mΩ, Outer Conductor ≤ 6.25 mΩ			——	50 Ω

Note: When multiple contacts are operating simultaneously, the rated current decline rate meets the requirements in the table below.

Number of Contacts	1~10	11~20	21~30	31~50	51~80	≥81
Decline Rate %	0%	10%	20%	30%	40%	50%
Electrical Continuity between Shell	≤5 mΩ
Shielding	Field strength 50,000 volts/meter Spectrum range less than 100MHz, minimum attenuation is 60dB

Insulation Resistance

	Normal Temperature	High Temperature	Humid and Heat	Rain Test
Contact	1000 mΩ	50 mΩ	50 mΩ	50 mΩ
Electromagnetic Coil	500 mΩ	20 mΩ	10 mΩ	10 mΩ
Shielding	Field strength 50,000 volts/meter Under the condition of spectral range less than 100MHz, minimum attenuation is 60dB

Dielectric Withstand Voltage

	Normal Temperature	High Temperature	Humid and Heat	Rain Test	Low Pressure
Ordinary Contact	1000 Vrms	1000 Vrms	250 Vrms	250 Vrms	200 Vrms
1553B, Ethernet, RF Contacts	500 Vrms	200 Vrms	200 Vrms	100 Vrms	100 Vrms
Electromagnetic Coil	625 Vrms	625 Vrms	200 Vrms	200 Vrms	100 Vrms

How to Order

Connector Specifications

Quality Grade

Plug Type

Feature

Part Number of Socket

Feature

J Grade

JF21-168T

JF21-168T2

JF21-168T2a

JF21-168TD

Manual Plug with Shielded Cable Cover

Manual Plug with Split Cable Cover

Manual Plug with Split Cable Cover and Breathable Mating Mechanism

Motor Driven Plug with Shielded Cable Cover

JF21-168Z1

JF21-168ZM

JF21-168ZM3

JF21-168ZM3a

Single-layer Socket

(Unsealed)

Sealed Socket

(Sealed)

Triple-layer Sealed Socket

(Sealed)

Triple-layer Large Flange Socket

(Sealed)

Coaxial Contact Wire Lead

Code	Wire Contact Type	Wire	Wire Length	Connection
JF21-168T JF21-168T2 JF21-168T2a JF21-168TD JF21-168Z1	Without Wire Lead	——	——	——
JF21-168ZM JF21-168ZM3 JF21-168ZM3a	1553B	TWSF/1553B-2 (White)	3 m, 3 m, 1.8 m	The white wire is connected to the central conductor (Positive Pole) The blue wire is connected to the middle conductor (Negative Terminal) Shielding layer connected to outer conductor
	12#Coaxial	SFF-50-1.5-1	3 m, 3 m, 1.8 m	The wire is connected to the inner conductor The shielding layer is connected to the outer conductor
	8#Coaxial	RCN8590 AWG24	3 m, 3 m, 1.8 m	The wire is connected to the inner conductor The shielding layer is connected to the outer conductor
JF21-168Z1(L=11m) JF21-168ZM3 JF21-168ZM3a	1553B	M17/176-0002	11 m, 3 m, 1.8 m	The white wire is connected to the center conductor (Positive Pole) The blue wire is connected to the middle conductor (Negative Terminal) Shielding layer connected to outer conductor
	12#Coaxial	SFF-50-1.5-1	11 m, 3 m, 1.8 m	The wire is connected to the inner conductor The shielding layer is connected to the outer conductor
	8#Coaxial	ABS1503KD24	11 m, 3 m, 1.8 m	The wire is connected to the inner conductor The shielding layer is connected to the outer conductor

Coaxial Contact Accessories (Crimp)

Code	Coaxial Contact Type	Contact	Adaptive Wires	Alternative Contacts	Adaptive Wires
JF21-168T JF21-168T2 JF21-168T2a JF21-168TD	1553B Socket	JF20-186-62	TWSF/1553B-2	JF20-186-64	TGSE 1553B-1 M17/176-0002
	Ethernet Socket	J599-0000-261		J599-0000-261a
	12#Coaxial Socket	JF20A-186-02	SFF-50-1.5-1	JF20B-186-02	SFCF46-50-4-51
JF21-168Z1	1553B Pin	JF20-186-57	TWSF/1553B-2	JF20-186-58	TGSE 1553B-1 M17/176-0002
	Ethernet Pin	J599-0000-161		J599-0000-161a
	12#Coaxial Pin	JF20A-186-01	SFF-50-1.5-1	——	——

Note: Optional contact parts must be ordered separately.

Socket Backshells (Cable Cover)

Cable Cover Type	Feature
JF21-168-41	Straight-outlet Shielded Cable Cover
JF14-182-20	Angled-outlet Shielded Cable Cover
JF14-182-24	Angled-outlet Split Cable Cover

Note: Cable covers are not included with the sockets at the factory. Users can choose according to their needs.For detailed dimensions of the cable cover JF14-182-20/24, please refer to the JF14 product sample page.

Contact Arrangement (Front View of Plug Mating Surface)

Contact Type	Symbol	Contact Specifications	Contact Number	Number of Contacts	Contact Soldering Cup Diameter
Ordinary Contact		Φ1.0 mm	17# ~ 164#	168	Φ1.5 mm
		Φ2.0 mm	9# ~ 16#	8	Φ2.7 mm
		Φ3.5 mm	1# ~ 8#	8	Φ4.5 mm
Coaxial Contact (Distinguish between Plug and Socket)		1553B	A, B	2	——
		Ethernet	C	1
		12#Coaxial	D	1	——