MIL-DTL-38999 Series IV Connectors Datasheets

MIL-DTL-38999 Series IV Connectors Datasheets and Specifications

MIL-DTL-38999 series IV circular connector is engineered with a breech lock and quick-disconnect mechanism. It features removable crimp contacts, outstanding environmental resistance, effective EMI/RFI shielding with grounding, and high contact density. Built to endure severe vibration, it is fully scoop-proof and ensures hermetic sealing when mated. This connector series is available in three shell material options, eight shell sizes, two finish types, three receptacle mounting styles, four contact variants, and over 55 distinct contact layouts.

Request a Quote
PDF Download
MIL-DTL-38999 Series IV Connectors Datasheets
Product parameter

    未标题-1.jpg

    MIL-DTL-38999 Series IV


    Part number

    D38999     40     W     B     35     P     N

    Basic series

    Type

        40 = Wall mount square receptacle 

        41 = Hermetic wall mount square receptacle 

        42 = Box mount square receptacle 

        43 = Hermetic jam nut receptacle 

        44 = Jam nut receptacle 

        45 = Hermetic solder mount receptacle 

        46 = Shielding straight plug 

        48 = Hermetic weld mount receptacle 

        49 = In-line receptacle

    Finish 

        W = Olive green cadmium, aluminium-alloy

        F = Electroless nickel, aluminium-alloy 

        N = Hermetic, electrodeposited nickel, stainless steel

        Y = Hermetic, electroless nickel, stainless steel 

        S = electrodeposited nickel, stainless steel 

        K = Stainless steel passivated 

    Shell size 

        11 (B), 13 (C), 15 (D), 17 (E), 19 (F), 21 (G), 23 (H), 25 (J) 

    Contact layout 

        See below 

    Type of contact 

        P = Pin 

        S = Socket 

    Orientation 

        N = Normal A, B, C, D

    Electrical

        Contact resistance and current rating:

    Contact IDDiameter (mm)Resistance (mΩ)Current (A)
    22D#Φ 0.76≤ 125.0
    20#Φ 1.00≤ 5.07.5
    16#Φ 1.60≤ 2.513.0
    12#Φ 2.40≤ 1.523.0

    EMI shielding: 

         At 10GHz: minimum attenuation 65 dB (F) 

         At 10GHz: minimum attenuation 50 dB (W)

         At 1GHz: minimum attenuation 85 dB (F and W)

    Withstanding voltage (V):

    Service ratingMIIIN
    Sea level1300180023001000
    21336m80010001000600

    Insulation resistance:

         At 500V ≥ 5000MΩ 

    Electrical continuity between shells: 

         K class ≤ 5.0mΩ, W class ≤ 2.5mΩ, F class ≤ 1.0mΩ

    Mechanical 

    Shell: 

         Aluminum alloy, stainless steel or copper-alloy 

    Plating: 

         W Olive green cadmium plating 

         F  Electroless nickel plating 

         K Stainless steel passivated

    Insulator: Thermo-set plastic 

    Grommet and seal: Silicon rubber 

    Contact: copper alloy with gold plating, crimp or PCB 

    Endurance: ≥ 500 cycles 

    Vibration: 

         Random vibration: At frequency: 100~1000Hz, density of power chart: 1G2 /Hz Shock: At 3 ms half sinusoid, peak value of acceleration: 300g 

    Environmental 

    Operating temperature: 

         W class: -65oC ~ +175oC  

         K, F class: -65oC ~ +200oC 

    Salt spray: According to method from MIL-DTL-38999 

         F class 48h 

         W class 500h 

         K class 1000h 

    Relative humidity: 98% at 40oC  

    Operating height: ≤ 30480 m

    Contact layout
Quality mil-dtl-38999 connector,mil-dtl-26482 connector factory,mil-dtl-38999 connector manufacturer,mil-dtl-26482 connector from China
Related Communication Connectors
More Electrical Connectors