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J30J-37A3 Micro Rectangular Electrical Connectors 37 Contact A3 Type

The J30J series micro rectangular electrical connector is a compact high-density interconnection product developed for electronic equipment that requires reliable signal transmission in a limited mounting area. The series is designed to comply with GJB2446A, equivalent to MIL-C-83513, and corresponds to the MDM-type micro rectangular connector structure.

This series uses elastic stranded pin contacts, commonly known as twist pin contacts. The twist pin design helps provide stable contact pressure, reliable mating performance, and consistent electrical continuity during repeated plugging and operation. With a transverse contact pitch of 1.27 mm and row spacing of 1.1 mm, the connector can accommodate multiple circuits in a small rectangular interface, making it suitable for compact and lightweight system designs.

The connector is equipped with a metal shielding shell to improve mechanical protection and shielding performance. A metal rear cover can be selected according to cable assembly or installation requirements. The series provides 9, 15, 21, 25, 31, 37, 51, 66, 74, 100, and 144 contact options.

J30J connectors support cable-to-cable, cable-to-PCB, and PCB-to-PCB connection methods. Board-mount versions can be supplied with adjusted contact tails to fit different PCB hole spacing. With high density, small size, light weight, flexible mounting, and reliable resistance to vibration and impact, the J30J series is a practical rectangular connector solution for precision electronic systems.

Contact Arrangement (view from mating face of pin insulator)

J30J Series Plug and Receptacle Classification Table

Plug/Receptacle Type		Basic Designation	Structural Features	Remarks	Page No.
Crimp Type	Basic Type	Plug J30J-TJ Receptacle J30J-ZK	Metal shell,wire crimp termination,straight cable outlet	Locking component types may be selected according to specific requirements
	Modified Type	Plug J30J-TJ-A Receptacle J30J-ZK-A	Compared with J30J-ZK/TJ products,a straight cable clamp is added at the rear of the product, and the cable is covered with a metal protective sleeve
		Plug J30J-TJ-C Receptacle J30J-ZK-C	Compared with J30J-ZK/TJ products,the wire exits at a 90°angle
		Plug J30J-TJ-C1 Receptacle J30J-ZK-C1	On the basis of the original J30J series crimp-wire products,an angled cable clamp is added, the wire bundle is covered with a metal protective sleeve,and there is one cable outlet on the same side
		Plug J30J-TJ-C2 Receptacle J30J-ZK-C2	Compared with J30J-ZK-C1/TJ-C1 products,the outlet direction is opposite;all other features are the same
		Plug J30J-TJ-C3 Receptacle J30J-ZK-C3	On the basis of the original J30J series crimp-wire products,an angled cable clamp is added, the wire bundle is covered with a metal protective sleeve,and there are two cable outlets on the same side
		Plug J30J-TJ-C4 Receptacle J30J-ZK-C4	On the basis of the original J30J series crimp-wire products,an angled cable clamp rear cover is added,and there are cable outlets on both sides
		Plug J30J-TJ-D Receptacle J30J-ZK-D	Compared with J30J-ZK/TJ products,an anti-rotation slot is added to the square flange
		Plug J30J-TJ-AD Receptacle J30J-ZK-AD	Compared with J30J-ZK/TJ-A products,anti-slip grooves are added on the side of the shell,and an anti-rotation slot is added to the square flange
		Plug J30J-TJ-Q Receptacle J30J-ZK-Q	Compared with J30J-ZK/TJ products,the shell square flange and mounting dimensions are enlarged to the corresponding dimensions
		Plug J30J-TJ-Q8 Receptacle J30J-ZK-Q8	Compared with J30J-ZK/TJ products,the shell square flange and mounting dimensions are enlarged to the corresponding dimensions
		Plug J30J-TJ-AQ8 Receptacle J30J-ZK-AQ8	Compared with J30J-ZK-A/TJ-A products,the shell square flange and mounting dimensions are enlarged to the corresponding dimensions
Solder Type		Plug J30J-TJS Receptacle J30J-ZKS	Compared with J30J-ZK/TJproducts,the contact termination form is solder cup type
Straight PCB Type		Plug J30J-TJN Receptacle J30J-ZKN	The contact termination form is changed to straight PCB type,with PCB grid spacing 2.54*2.54,recommended PCB thickness (1.6-2.5 mm)
		Plug J30J-TJN-J Receptacle J30J-ZKN-J	The contact termination form is changed to straight PCB type,with PCB grid spacing 1.27*2.54,recommended PCB thickness (1.6-2.5 mm)
		Plug J30J-TJN(X) Receptacle J30J-ZKN(X)	Compared with J30J-ZKN/TJN,the pin length is increased,recommended PCB thickness(1.6-3.5 mm)

J30J-A3

J30J-15 to 100A3

Model	A	B	C	D	E	F	G
J30J-9A3	19.6	9.9	27	10.4	14.3	2	4
J30J-15A3	23.5	13.8	27	10.4	18.2	5.2	4
J30J-21A3	27.4	17.6	28	10.4	22	6	4
J30J-25A3	29.8	20.2	28	10.4	24.5	8.5	4
J30J-31A3	33.6	24	28	10.4	28.3	10.4	4
J30J-37A3	37.4	27.8	28	10.4	32.2	14.2	4
J30J-51A3	36.4	26.6	30	11.2	30.86	13.2	4.8
J30J-66A3	42.9	33	30	11.2	37.3	16	4.8
J30J-74A3	38.8	29.1	30	12	33.5	15.5	5.6
J30J-100A3	54.7	40.7	30	12	45.7	23	5.6
J30J-144A3	66.6	53.6	30	12	58.6	33.4	5.6

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Categories	Rectangular Connector
Insulation resistance:	≥ 5000 MΩ (normal); ≥ 100 MΩ (damp heat)
Brand Name:	Jovelix
Price:	10$-500$
Place of Origin:	China
Mechanical life:	2000 cycles
Model Number:	J30J-37A3
Vibration:	10–2000 Hz, acceleration 196 m/s
Certification:	AS9001
Supply Ability:	10000pcs per month
Rated current:	3 A
Packaging Details:	standard export package
Withstand voltage:	800 V
Recommended torques for locking screws:	Tightening torque: 0.25–0.3 N·m; Mounting torque: 0.35–0.4 N·m
Acceleration:	735 m/s
Contact resistance:	≤ 10mQ
Payment Terms:	L/C,T/T,Western Union
MOQ:	10pcs
Delivery Time:	2-9weeks
Shock:	735 m/s², 11 ms
Operating temperature:	55 ℃ to +125 ℃