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

Basic Properties
Place of Origin: China
Brand Name: Jovelix
Certification: AS9001
Model Number: J30J-37A3
Trading Properties
Minimum Order Quantity: 10pcs
Price: 10$-500$
Payment Terms: L/C,T/T,Western Union
Supply Ability: 10000pcs per month
Product Summary
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 correspond...

Product Details

Highlight:

Micro rectangular electrical connectors

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37 Contact rectangular electrical connectors

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A3 Type connectors rectangular

Operating Temperature: 55 ℃ To +125 ℃
Rated Current: 3 A
Contact Resistance: ≤ 10mQ
Insulation Resistance: ≥ 5000 MΩ (normal); ≥ 100 MΩ (damp Heat)
Withstand Voltage: 800 V
Vibration: 10–2000 Hz, Acceleration 196 M/s
Mechanical Life: 2000 Cycles
Recommended Torques For Locking Screws: Tightening Torque: 0.25–0.3 N·m; Mounting Torque: 0.35–0.4 N·m
Shock: 735 M/s², 11 Ms
Acceleration: 735 M/s
Product Description

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-37A3 Micro Rectangular Electrical Connectors 37 Contact A3 Type 0
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

J30J-37A3 Micro Rectangular Electrical Connectors 37 Contact A3 Type 1 J30J-37A3 Micro Rectangular Electrical Connectors 37 Contact A3 Type 2 J30J-37A3 Micro Rectangular Electrical Connectors 37 Contact A3 Type 3

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
Overall Rating
5.0
★★★★★
★★★★★
Based on 50 reviews recently
5 star
100%
4 star
0
3 star
0
2 star
0
1 star
0
All Reviews
  • A
    Aulia Safitri
    Indonesia Jun 1.2026 trustpilot.com
    ★★★★★
    ★★★★★
    Fine precision workmanship ensures tight contact. Signal transmission is stable and free of interference for our electronic devices.
  • C
    Chathura Wickramasinghe
    Sri Lanka May 15.2026 trustpilot.com
    ★★★★★
    ★★★★★
    Simple structure and standard specs. Our technicians can complete soldering and installation quickly and efficiently.
  • P
    Phattarapong Chaiyawat
    Thailand Mar 8.2026 trustpilot.com
    ★★★★★
    ★★★★★
    Great shock resistance. It keeps stable connection even when the devices work in vibrating workshop environments.
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