High Density J30J Connector (5-144 Pin) Twist Pin Contacts | GJB2446

J30J Series Micro Rectangular Connector (Equivalent to MIL-DTL-83513 / MDM Series) is a high-reliability, military-grade interconnect complying with GJB2446 Chinese military standard. Featuring 1.27mm high-density twist-pin contacts, metal shielding shell, and miniaturized design, it is widely used in aerospace, defense, aviation, and industrial electronics where space, weight, and performance are critical.

Key Features

✅ Standard Compliance: Fully meets GJB2446 (MIL-DTL-83513), interchangeable with US MDM series

✅ High-Density Design: 1.27mm contact pitch, compact & lightweight, ideal for miniaturized systems

✅ Superior Reliability: Twist-pin (stranded elastic) contacts (7 contact points per pin), gold-plated for low resistance & corrosion resistance

✅ Metal Shielding: Aluminum alloy shell, excellent EMI/RFI shielding

✅ Wide Pin Configurations: 9, 15, 21, 25, 31, 37, 51, 66, 74, 100 pins

✅ Termination Types: Crimp, solder, straight PCB (TJL), right-angle PCB (TJW), cable mount

✅ Extreme Environment: Operating temp -55°C to +125°C, high vibration/shock resistance

Technical Specifications

Parameter	Value
Standards	GJB2446, MIL-DTL-83513 (MDM compatible)
Contact Pitch	1.27mm
Rated Current	3A per contact
Contact Resistance	≤10mΩ
Insulation Resistance	≥5000MΩ
Dielectric Withstand	800V AC
Operating Temp	-55°C ~ +125°C
Vibration	10~2000Hz, 196m/s²
Shock	735m/s², 11ms
Material	Shell: Aluminum alloy; Contacts: Copper alloy, gold plated; Insulator: PPS
Mechanical Life	≥500 mating cycles