MIL-DTL-38999 Series IV Cylindrical Connectors

D38999 Connectors > D38999 Series IV

Description

The latest generation of performance, the MIL-DTL-38999 Series IV connector is compact, lightweight cylindrical connector technology featuring a scoop proof design with a breech lock coupling system.

• Lightweight, compact, high contact density
• Breech lock coupling system
• The most sophisticated cylindrical connector to meet military aerospace demands under severe conditions
• Wide variety of customer options

Series include

• Firewall Class K with Stainless Steel shells
• Breech lock coupling system
• Scoop proof contact protection
• ESD Protection with Faraday cage

Applications

High performance general duty and severe environmental applications.

• Military Aerospace
• Commercial Aircraft
• Space Applications
• Military Vehicles
• Medical Equipment

Standard Requirements

MS versions meet or exceed MIL-DTL-38999 Series IV.

Coupling / Mounting

Breech lock coupling

Contact Terminals

Crimp termination. Recessed pins (100% scoop-proof feature minimizes contact damage).

Performance / Environmental Effect

Operating temp. from –65°C to +200°C. Superior EMI shielding is achieved through the combination of grounding fingers and solid metal to metal mating. IP67 rating for environmental sealing. Corrosion resistance: shells of stainless steel or cadmium over nickel plating withstand a 500 hr. salt spray exposure. Operating voltage to 900 VAC (RMS) at sea level.

Durability

500 cycles of mating and unmating

Temperature Range

• Class F, C, K, Y & N: -65°C (-85°F) to +200°C (392°F)
• Class W: -65°C (-85°F) to + 175°C (347°F)

Vibration

Sine vibration per MIL-STD 202, Method 204, Condition G. Random vibration per M I L-STD-1344, Method 2005, Condition VI, Letter “J”.

EMI Shielding

• Class F & N: EMI leakage attenuation, greater than 9OdB at I00Mhz, and greater than 65dB at 10Ghz. Shell-to-Shell conductivity, 1.0 millivolt maximum voltage drop.
• Class W: EMI leakage attenuation, greater than 90dB at I00Mhz, and greater than 50dB at 10GHz. Shell-to-Shell conductivity, 2.5 millivolt maximum voltage drop.
• Class K & Y: EMI leakage attenuation, greater than 80dB at 100Mhz, and greater than 45dB at I0Ghz. Shell-to-Shell conductivity, I0.0 millivolt maximum voltage drop.

Corrosion Resistance

• Class C, W, K & Y withstand 500 hours Salt Spray
• Class F & N withstand 48 hours Salt Spray

Fluid Immersion

Connectors withstand specified immersions in various fuels, solvents, coolants and oils, per MIL-STD-1344, Method 1016

Pin-to-Pin Mating Protection

A plug and receptacle will not mate with connectors having the same contact gender.

Scoop-Proof Design

Pin contacts are recessed to prevent damage due to scooping by the mating connector shell.

Grounding Before Contact

Complete grounding between connector halves occurs 0.050 inch (1.27mm) before engagement of the electrical contacts.

Optional Features

• 6 shell styles and over 50 insert patterns.
• Hermetic seal (glass fusion) receptacle styles available.
• Stainless Steel Firewall, Class K styles available.
• Variety of shell finishes.
• Twinax, coax, triax, filter contacts and fiber optic termini options.