A MIL-DTL-38999 connector is a type of circular electrical connector that meets the specifications outlined in the MIL-DTL-38999 standard. These connectors are known for their ruggedness, reliability, and versatility, making them suitable for demanding environments such as aerospace, military, and industrial applications.

There are four primary series of MIL-DTL-38999 connectors: Series I, II, III, and IV. Each series offers different features and is designed for specific applications. For example, Series III connectors are commonly used in aerospace applications due to their high contact density and rugged construction.

Rugged construction High contact density EMI shielding Variety of shell sizes and contact arrangements Wide operating temperature range Compatibility with various accessories

Common applications include aerospace, military, industrial automation, test and measurement, marine, medical equipment, telecommunications, oil and gas, ground support equipment, and transportation.

MIL-C-38999 was an older specification, while MIL-DTL-38999 is the current and more comprehensive specification. MIL-DTL-38999 incorporates improvements and updates based on advancements in technology and manufacturing processes.

Factors to consider include: Number of contacts required Shell size Mounting style Environmental conditions Voltage and current ratings

The mating cycle refers to the number of times a connector can be mated and unmated without affecting its performance. The mating cycle can vary depending on the specific connector and environmental conditions.

Look for connectors from reputable manufacturers that meet or exceed the MIL-DTL-38999 standard. Metabee, a renowned Chinese electronic connector supplier, offers a comprehensive range of high-performance D38999 connectors, engineered for reliability and durability.