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8LT7T21B75SN

Description
MIL Series Connector, 4 Contact(s), Aluminum Alloy, Female, Wire Wrap Terminal, Receptacle
CategoryThe connector    The connector   
File Size356KB,14 Pages
ManufacturerSOURIAU
Download Datasheet Parametric View All

8LT7T21B75SN Overview

MIL Series Connector, 4 Contact(s), Aluminum Alloy, Female, Wire Wrap Terminal, Receptacle

8LT7T21B75SN Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
Reach Compliance Codenot_compliant
Other featuresSTANDARD: MIL-C-38999
Back shell typeSOLID
Body/casing typeRECEPTACLE
Connector typeMIL SERIES CONNECTOR
Contact to complete cooperationGOLD OVER NICKEL
Contact completed and terminatedGold (Au) - with Nickel (Ni) barrier
Contact point genderFEMALE
Contact materialCOPPER ALLOY
Coupling typeBAYONET
DIN complianceNO
empty shellNO
Environmental characteristicsFLUID RESISTANT
Filter functionNO
IEC complianceNO
JESD-609 codee4
MIL complianceYES
Plug informationMULTIPLE MATING PARTS AVAILABLE
Mixed contactsNO
Installation typeCABLE AND PANEL
OptionsGENERAL PURPOSE
Shell surfaceOLIVE GREEN CADMIUM
Shell materialALUMINUM ALLOY
Housing size21
Termination typeWIRE WRAP
Total number of contacts4
Base Number Matches1
8LT Series
Applications
High density connectors for all military
and aeronautical purposes.
Description
• High density connector from 1 to
128 contacts
• Sizes 22D, 20, 16, 12, # 16 coax and
# 8 triax
• Bayonet locking system
• 100% scoop proof
Standards
MIL-C 38999 Series I - QPL approved
NFC 93422 HE 308
DTAT-C 5935 X 0005 (HE 308 standard)
GAM/T1 list
Characteristics
Mechanical
• Shell : aluminum alloy
• Plating :
- olive green cadmium (B)
- nickel (F)
• Insulator : thermoplastic
• Grommet and seal : silicone elastomer
• Contact : copper alloy
• Plating : gold over nickel
• Endurance : 500 cycles
• Shock : 300 g during 3 ms and MIL-S901
grade A
• Vibration : sine 10 to 2000 H 30 g random
100 to 300 Hz - 5 (g
2
/Hz)
• Contact retention : (mini force in N)
size 22 D : 45 N size 20 : 67 N
size 16 : 110 N size 12 : 110 N
size 8
: 110 N
Electrical
Test voltage (Vrms)
Service
M
I
II
sea level
1300
1800
2300
at 21000 m
800
1000
1000
Climatic
• Temperature range :
- cadmium plating (B) : -65°C +175°C
- nickel plating (F)
: -65°C +200°C
• Sealing : mated connectors
- differential pressure 2 bars
- leakage
16 cm
3
/hr
• Salt spray to :
MIL STD 1344 method 1001
- 500 hours (version B)
- 48 hours (version F)
NFC 93422
- 48 hours (version F)
• Damp heat :
MIL-C 38999 : 10 cycles 24 hrs
NFC 93422 : 56 days
• Contact resistance :
resistance of wire included in measurement :
size 22D : 14.6 mΩ
size 20 : 7.3 mΩ
size 16 : 3.8 mΩ
size 12 : 1.7 mΩ
• Insulation resistance :
5000 MΩ (at 500 Vdc)
• Contact rating :
size 22D : 5 A
size 20 : 7.5 A
size 16 : 13 A
size 12 : 23 A
• Shell continuity :
- olive green plating : 2.5 mΩ
- nickel plating : 1 mΩ
• Shielding : - 90 dB to 100 MHz
- 50 dB to 10000 MHz
• Triaxial contact : # 8
- bandwidth : 0 - 20 MHz
- voltage rating : 500 Vac Max.
125 Vac at 21000 m
- voltage drop :
inner and middle contact
55 mV under 1A
outer contact
75 mV under 12A
Resistance to fluids
To MIL-C 38999 :
• MIL-L 7808
• MIL-H 5606
• MIL-C 25769
• hydraulic fluids
To NFC 93422 :
F46 - F54 - 0/180
MIL-L 23699
MIL-A 8243
MIL-T 5624 (JP5)
solvents
- H515 - H542 - XH45
Connectors ordering information
FCI Souriau part numbers
basic series
shell type
0
3
2
7
1
5
L
C
T
W
-
-
-
-
-
-
-
-
-
-
square flange receptacle
square flange receptacle (rear mounting)
square flange receptacle not accepting backshell
jam nut receptacle
cable connecting receptacle
plug with RFI shielding
receptacle
receptacle
receptacle
receptacle
with
with
with
with
long spill (male and female # 22D)
short spill (male and female # 22D, # 20, # 16)
male contacts size 20 for wire wrap (2 wraps)
male contacts size 22 for wire wrap (3 wraps)
8LT
0
-
13
B
35
P
N
designator
- connectors with standard crimp contacts
shell size
plating
contact layout
contact type
09-11-13-15-17-19-21-23-25
F
- nickel
B
- olive green cadmium (MIL-C 38999 - HE 308)
- see table p 120
P
- male
S
- female
A
- male connector supplied less contact or with specific contacts
B
- female connector supplied less contact or with specific contacts
N
- normal
A-B-C-D
- see table p 77
polarization
Note : connectors supplied with standard contacts
74
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