Web Menu

Product Search

Language

Share

Custom D38999 II series-Military Electrical Connectors

Home / Products / Military Electrical Connectors / D38999 II series
Recommended products
CALL OUR OFFICE

‪+86 176 0151 5794‬

E-MAIL

[email protected]

D38999 II series-Military Electrical Connectors Manufacturers

Product introduction

●Conforms to GJB599B (MIL-DTL-38999M) II series standards

●Bayonet quick connection

●599 has the smallest volume, lightest weight and shortest shell among all series

●EMI/RFI shielding

●The contact piece is removable by crimping and does not prevent oblique insertion. In an environment with a small space and inconvenient plugging and unplugging, it is recommended to install pins on the socket.

Usage: The product is used for circuit signal connection

Usage environment: The electrical connector is a lightweight connector, suitable for use in situations that do not withstand high-intensity vibration or harsh wind, sand and moisture.

Main technical performance

●Mechanical properties:

Shell material: aluminum alloy, stainless steel

Plating layer: Class B: Cadmium plated military green

Category E: Stainless steel passivation

Category F: Electroless Nickel Plating

Contact parts: copper alloy surface gold-plated, crimping, welding, printed board type

Mechanical life: ≥500 plug and unplug cycles

Vibration: Random vibration frequency 100-1000Hz power spectral density 1g2/Hz

Impact: 3ms half sine wave, acceleration peak 300g

 

●Electrical performance:

Contact resistance and rated current of contacts:

Contact specifications

Working diameter mm

Contact resistance mΩ

Rated current A

22D

Ф0.76

≤12

5

20#

Ф1.00

≤5

7.5

16#

Ф1.60

≤2.5

13

12#

Ф2.40

≤1.5

23

 

Electromagnetic interference shielding: minimum attenuation less than 45dB at 100MHz-1GHz

Withstand voltage: V

Working grade*

M

Ⅰ

Ⅱ

Sea ​​level

1300

1800

2300

21000m

800

1000

1000

Insulation resistance: normal conditions ≥5000MΩ

Humid conditions ≥100 MΩ

Electrical continuity between shells: Class B ≤ 2.5mV

Class F≤1.0mV

Class E≤50mV

 

●Environmental performance:

Operating temperature: Class B: -65 ˚C ~+175 ˚C

Category E, F: -65 ˚C ~+200 ˚C

Salt spray resistance: Category B: 500h

Category E: 1000h

Category F: 48h

Relative humidity: 98% at 40 ˚C

Working height: ≤30480m

Contact arrangement (view of the insertion surface of the needle insulator)



ABOUT US

Power-efficient electrical connectors.

Taizhou Henglian Electric Co., Ltd. was founded in April 2011, is located in the "Ginkgo town" reputation of the riverside city - Taixing City, is specialized in electrical connector development, production, sales of high-tech enterprises.

We are China Custom D38999 II series-Military Electrical Connectors Manufacturers and OEM/ODM D38999 II series-Military Electrical Connectors Suppliers.

There are more than 150 employees, including more than 30 people with various professional and technical titles, fixed assets of 30 million yuan, with a variety of mechanical processing equipment and testing equipment.

In recent years, the company has been rated as "Top Ten enterprises in Zhangqiao Town", "Top Ten enterprises in Zhangqiao Town", and won the "Taixing Outstanding Contribution Award" and other titles.

At present, the company's leading products are conforming to the military standard Y11, Y17, Y27, Y50, YGD, YLH, YM, YW, J599I, J599II, J599III, XC series circular electrical connectors, and J7, J14, J20J, J29A, J30J, J63A series rectangular electrical connectors. It is in line with the national standard Y2, Y4, YP, LYP, YD, and other series of circular electric connectors. The products cover the general staff, final assembly, sea installation, Second Artillery, weapons, aerospace and other military varieties nuclear energy, railway, national power grid, oil earth geophysical exploration, and other fields. The company has a technical center, and quality inspection center, with sophisticated production equipment, modern inspection facilities, and inspection and testing means. The products have the characteristics of three-defense function, high density, high reliability, electronic compatibility, etc., and can develop and produce various kinds of special electrical connectors for various users to meet customer needs.

The company is a qualified supplier of military electronic components, Marine equipment and aerospace of the Communications Department of the General Staff and the Ministry of Information Industry, and has passed the GJB9001C-2017 weapons and equipment quality management system certification and the second-level secret certification of weapons and equipment production and research units.

The company always adhere to the "integrity-based, unity and hard work, realistic innovation, the pursuit of excellence" spirit of enterprise, adhere to the concept of "brand create value", dedicated to customer service, so that Henglian quickly become the leader in the peer.

Taizhou Henglian Electric Co., Ltd. sincerely welcome domestic and foreign customers to visit and negotiate business!

Contact Us
  • Factory
    Factory
  • Production line
    Production line
  • Assemble
    Assemble
  • Wiring Harness Workshop
    Wiring Harness Workshop
  • Product design
    Product design
  • Inspection equipment
    Inspection equipment
  • Inspection equipment
    Inspection equipment
  • Assemble
    Assemble
  • Factory Area
    Factory Area
  • Honor Wall
    Honor Wall
  • Product Display Cabinet
    Product Display Cabinet
  • Training
    Training
  • Training
    Training
  • Outstanding Contribution Award
    Outstanding Contribution Award
  • 10th Anniversary Sanya Trip
    10th Anniversary Sanya Trip
  • Exhibition
    Exhibition
  • Exhibition
    Exhibition
  • Exhibition
    Exhibition
Certificate Of Honor
  • Certificate
  • Certificate
  • Certificate
  • Certificate
  • Certificate
  • Certificate
  • Certificate
  • Certificate
Insight
Industry Knowledge

D38999 II Series Connectors: Protection Level, Environmental Resistance, and Testing Standards

1. Product Overview

D38999 II series connectors are high-performance military circular connectors widely used in aerospace, weaponry, nuclear energy, railways, and geophysical exploration under harsh conditions. Taizhou Henglian Electric Co., Ltd., established in 2011, leverages a professional R&D team and advanced testing equipment to produce high-density, high-reliability, multi-protection connectors that ensure long-term stability in extreme environments.

2. Protection Level (Ingress Protection, IP)

D38999 II series connectors are designed for dust, water, and corrosion resistance. Typical protection levels include:

Parameter Standard/Level Description
Dust Protection IP67/IP68 Completely dustproof; short-term immersion (IP67) or long-term immersion (IP68) options
Water Protection IP67/IP68 Withstands short-term or long-term submersion; seals made of silicone or fluororubber
Corrosion Resistance MIL-DTL-38999/ANSI Nickel-plated or anodized shells, resistant to salt spray and chemical corrosion

Taizhou Henglian Electric Co., Ltd. ensures long-term stability of protection levels through advanced surface treatment and high-precision mechanical processing.

3. Environmental Resistance

D38999 II series connectors are designed for harsh environments. Key performance parameters include:

Performance Parameter Typical Value Description
Temperature Range -65°C to +200°C Suitable for extreme high and low temperature conditions
Vibration 20–2000 Hz, 15 g Meets aerospace and military vibration requirements
Shock 100 g, 6 ms Withstands high-impact conditions such as weapon launch or transport vibration
Salt Spray 48–96 h Strong corrosion resistance for marine and high-humidity environments
Electrical Performance 500–1500 V, 3–5 A/pin High reliability and electromagnetic compatibility
Sealing Performance Seals + triple-protection adhesive Dustproof, waterproof, and chemically resistant

4. Testing Standards

To ensure reliability under extreme conditions, Taizhou Henglian Electric Co., Ltd. products comply with the following standards:

Test Item Standard Description
Temperature Cycling MIL-STD-810F Tests material and contact reliability under high and low temperature cycles
Vibration Test MIL-STD-202 Simulates vibration during transport and operational use
Shock Test MIL-STD-202 High-impact shock testing for structural stability
Salt Spray Test ASTM B117 Simulates marine and high-corrosion environmental conditions
Waterproof Test MIL-DTL-38999 Ensures water resistance and seal effectiveness
Electrical Performance Test GJB9001C-2017 Meets weaponry and equipment quality management system standards, ensuring electrical reliability

5. Company Advantages and Technical Support

R&D Capability

Taizhou Henglian Electric Co., Ltd. has over 30 technical professionals and modern testing equipment, capable of developing customized connectors to meet special customer requirements.

Production Capability

High-precision mechanical processing equipment ensures high-density and high-precision manufacturing of connector shells and pins.

Certification and Qualification

GJB9001C-2017 quality management system certification and second-level secret production qualification, compliant with defense and aerospace standards.

Application Cases

Products are used in aerospace, weaponry, nuclear energy, railways, and geophysical exploration, demonstrating long-term stability in field applications.

Conclusion

D38999 II series connectors meet stringent military-grade requirements for protection levels, environmental resistance, and testing standards. Taizhou Henglian Electric Co., Ltd. leverages advanced manufacturing, professional technical teams, and rigorous testing systems to deliver high-reliability, high-density, multi-protection connectors, ensuring stable operation in extreme environments.

Message Feedback