Quick Detail
Place of Origin
Brand Name
KAIDA
Model Number
D38999/20WB35PN
HS-CODE
85-
Package & Delivery Lead Time
Package
Standard packing
Delivery Lead Time
10 days
Detailed Description
Datasheet download:
[MIL-DTL-38999 Series III Connectors.pdf]
[MIL-DTL-38999 backshell.pdf]
Part number:D38999/20WB35PN
MIL-DTL-38999 Series III Circular Connector. D38999/20WB35PN Signal transmission, anti-corrosion, waterproofing
This series of round connectors, compliant with MIL-DTL-38999 III series requirements, adopt Triple-start threaded quick connection, with an anti-loose mechanism, featuring small size, light weight, high-density contacts, EMI/RFI shielding, removable crimp contacts, and anti oblique-mating;
This product has a fireproof shell, a variety of coatings, and vibration performance of high strength under high temperature, suitable for use in harsh sandstorm and damp circumstances.
With quick connection, anti-loose mechanism, EMI/RFI shielding, interface sealing, anti oblique-mating design, the material of shell is optional in aluminum-alloy, naval brass, stainless steel or composite.
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| | D38999/ | 20 | W | B | 35 | P | N |
Basic series | | | | | | | |
Type of connector | | | | | |
20 = Square flange receptacle | | | | | |
24 = Jam nut receptacle | | | | | |
26 = Shielding plug | | | | | |
Finish | | | | |
W = Olive green cadmium plating | | | | |
F = Electroless nickel plating | | | | |
T = Marine Bronze (copper aluminium alloy) | | | | |
K = Stainless steel passivated L = Black anodized J = Composite material + W M = Composite material + F | | | | |
Shell size | | | |
09 (A), 11 (B), 13 (C), 15 (D), 17 (E), 19 (F), 21 (G), 23 (H), 25 (J) | | | |
Contact layout (See below) | | |
Type of contact | |
P = Crimp pin | |
S = Crimp socket | |
PL = Long PCB pin | |
PC = Short PCB pin | |
SL = Long PCB socket | |
SC = Short PCB socket | |
Orientation |
N = Normal |
A, B, C, D = Alternative |
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Electrical
Contact resistance and current rating:
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Contact ID | Diameter (mm) | Resistance (m) | Current (A) |
22D# | 0.76 | 12.0 | 5.0 |
20# | 1.00 | 5.0 | 7.5 |
16# | 1.60 | 2.5 | 13.0 |
12# | 2.40 | 1.5 | 23.0 |
10# | 3.15 | 1.0 | 40.0 |
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EMI shielding:
At 1GHz: minimum attenuation 85dB (F and W)
At 10GHz: minimum attenuation 65dB (F)
At 10GHz: minimum attenuation 50dB (W)
Withstanding voltage (V):
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Service rating | M | I | II | N |
Sea level | 1300 | 1800 | 2300 | 1000 |
21000m | 800 | 1000 | 1000 | 600 |
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Insulation resistance:
Normal 5000 M, damp heat 100 M
Electrical continuity between shells:
W class 2.5 m, F class 1.0 m, K class 5.0 m
Mechanical
Shell: Aluminum alloy, stainless steel or copper-alloy
Plating:
W class: Olive green cadmium plating
K class: Stainless steel passivated
F class: Electroless nickel plating
Insulator: Thermo-set plastic
Grommet and seal: Silicon rubber
Contact: Copper alloy with gold plated
Endurance: 500 cycles
Vibration:
Sine: 60g, with temperature cycling and simulated accessory (36 hours)
Random: 44.1 grms in high temperature
49.5 grms in ambient temperature
Shock: At 3 ms half sinusoid, peak value of acceleration: 300g
Contact retention:
22D#, 45N 20#, 67N 16#, 111N 12#, 111N 10#, 111N 8#, 111N
Environmental
Operating temperature:
W class: -65 oC ~ +175 oC J class: -65 oC ~ +175 oC M class: -65 oC ~ +200 oC
K, F class: -65 oC ~ +200 oC
Salt spray: according to method from MIL-DTL-38999
F class: 48h W class: 500h K class: 1000h
Salt spray: According to method from MIL-DTL-38999 2000h
Seal: Comply with the request of MIL-DTL-38999K low-pressure immersion.
Damp heat: 10 cycles in 24 hours according to MIL-DTL-38999K
Fluid resistant: Various fuels, coolant and solvent
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