The J30J-25ZKN is a high-density micro rectangular connector designed for reliable electrical connections in demanding environments. 

Its key functional characteristics include:

• Contact Configuration: 25-pin socket with female contacts (ZK indicates socket with female contacts, N denotes straight PCB mounting) 

• Contact Technology: Utilizes twisted-wire flexible pins (commonly called "hemp pins") 

• with each contact point having seven contact points, significantly improving contact reliability 

• Grid Spacing: Features 1.27mm grid spacing for high-density contact arrangement, 

• with multiple spacing options available (1.27×2.54mm, 2.54×1.6mm, 2.54×2.54mm) 

• Environmental Resistance: Operates in temperatures from -55°C to +125°C and withstands humidity up to 95% at +40°C 

• Electrical Performance:

  • Contact resistance ≤10mΩ

  • Insulation resistance ≥5000MΩ

  • Dielectric withstand voltage: 800V

  • Rated current: 3A 

• Mechanical Durability: 500 mating cycles and vibration resistance of 10-2000Hz at 196m/s² 

Primary Applications

The J30J-25ZKN connector finds extensive use in applications requiring compact, lightweight, and reliable interconnections:

1. Aerospace Systems: Used in avionics and aircraft instrumentation due to its compliance with GJB2446 standards

2.  (equivalent to MIL-C-83513) and ability to withstand harsh environmental conditions 

3. Military Electronics: Employed in various military electronic devices where space constraints and reliability are critical factors 

4. Communication Equipment: Suitable for high-density signal transmission in compact communication devices 

5. Industrial Control Systems: Used in automation equipment where vibration resistance and long-term reliability are required 

6. Medical Electronics: Occasionally used in medical devices requiring high-density interconnections 

Related Model Analys

The J30J series offers numerous variants with different configurations:

By Contact Number:

• Smaller configurations: J30J-9ZKN (9-pin), J30J-15ZKN (15-pin), J30J-21ZKN (21-pin) 

• Larger configurations: J30J-31ZKN (31-pin), J30J-37ZKN (37-pin), J30J-51ZKN (51-pin), up to J30J-144ZK (144-pin) 

By Mounting Type:

• Straight PCB mount (N-type): J30J-25ZKN (standard), J30J-25ZKNP5 (with P5 lock) 

• Right-angle PCB mount (W-type): J30J-25ZKW 

• Cable mount (no suffix): J30J-25ZK (for cable termination) 

By Special Features:

• Fast-lock versions: J30JA-25ZKN (A-series with quick-lock mechanism) 

• High-temperature versions: J30J-25ZKN with G suffix (high-temperature resistant up to 185°C) 

• Filtered versions: J30JL-25ZKN (L-series with filtering function) 

• Wider flange versions: J30JQ-25ZKN (Q-series with wider flange for better mounting) 

Equivalent International Models:

The J30J series is designed to be interchangeable with:

• American MDM series connectors 

• MIL-C-83513 compliant connectors 

Technical Comparison with Similar Models

Selection Considerations

When choosing between J30J variants, consider:

1. Contact Configuration: Ensure proper gender (ZK for socket, TJ for plug) and pin count match your requirements 

2. Mounting Style: Select straight (N), right-angle (W), or cable mount based on installation constraints 

3. Locking Mechanism: Choose appropriate lock type (P-series for vibration resistance) if needed 

4. Environmental Requirements: Consider temperature, humidity, and vibration specifications 

5. PCB Compatibility: Verify grid spacing (1.27×2.54mm standard or 1.27×1.1mm for some variants)

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