Double Density D - .075" Contact Spacing
The Double Density D is a rectangular connector in
the popular D Subminiature shell configuratoin fea-
turing double the contact density in the same insert
area. The Double Density D connector can thus
accommodate up to 100 contacts instead of 50.
This double contact density is achieved by using
field-proven, highly reliable Centipin™/Centisocket™
contacts on .075 (1.91) centers, in the positive
contact alignment design. In this design contact
positions are reversed; the flexible Centipin™ con-
tacts are recessed in the insulator and the more
rugged Centisocket™ contacts are exposed. This
reversal of positions, and the chamfered-entry of
the sockets, assures positive mating even under
servere misalignment conditions. The contacts are
retained in the monobloc insulator by a resilient
internal shoulder that snaps into a locking groove in
the contact. The chamfered front of the contact will
2D
not damage the internal shoulder in the insulartor.
Contacts are crimp removable type.
The Double Density D connector is available in the
five popular shell and insert sizes accommodating
up to 100 contacts. These connnectors mate exclu-
sively with other Double Density D connectors. A
wide range of accessories can be used, including
junction shells, potting cups, switching shells, guide
pin plates, and dust caps.
1. STANDARD D HARDWARE-
1
Including full range of D Subminiature accessories
2. ONE PIECE TYPE INSULATOR-
glass-filled nylon material
2
3. CONTACT RETENTION-
thermoplastic internal shoulder snaps into a locking groove in the contact.
Retention Force:
8 lbs. min. initially,
4
lbs. min. after 10 cycle.
3
4
4. TWIST PIN CONTACTS-
seven outer wiping surfaces assure electrical continuity even under severe
shock and vibration
5. POSTIVE CONTACT ALIGNMENT-
flexible pin is recessed in insulator cavity and rugged socket is exposed
5
6. GUIDE-IN KEYS AND KEYWAYS-
assure alignment during mating and prevent scooping
6
How to Order
2D
2D
E
A
F
19
31
S
P
BR
****
SERIES
SHELL SIZE
FLOAT MOUNTS
CONTACT ARRANGEMENT
CONTACT TYPE
TERMINATION
MODIFICATION
NOTE: Connectors may be ordered less contacts by adding the mod callout "FO" at enc of number. Contacts are then supplied in bulk form.
for type of contacts and installation/assembly tools refer to page 13.
SERIES
2D - Double Density D - ITT Cannon prefix
SHELL SIZE
E, A, B, C and D
FLOAT MOUNTS
Omit if not required
CONTACT ARRANGEMENT
19, 31, 52, 79 and 100
CONTACT TYPE*
P - Pin
S - Socket
TERMINATION
BR - 90˚ PCB mounting
(For BR Series use "P" to designate jackpost)
MODIFICATION
F171 - Jackpost assembly
F172 - Standard jackscrew
F173 - Low profile jackscrew
For other modifications consult factory
* Accommodates AWG #26 thru #22
Performance and Material Specifications
WEIGHT
Part Number
by shell size
2DE19P
2DE19S
2DA31P
2DA31S
2DB52P
2DB52S
2DC79P
2DC79S
2DD100P
2DD100S
Weight (in gr.)
Weight (in oz.)
Less With Contacts Less With Contacts
4.05
3.75
5.20
4.90
8.75
7.15
11.70
9.70
12.85
10.95
5.02
5.17
6.78
7.22
11.40
11.05
15.73
15.62
17.95
18.45
.142
.133
.183
.173
.308
.252
.413
.342
.453
.386
.177
.182
.239
.255
.402
.390
.555
.551
.633
.651
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
MATERIALS AND FINISHES
*Shell
Mounting Hardware
and Float Mounts
Insulator
Contacts
Alternate finish,
Modification Code
-
Glass-filled nylon
-
Copper alloy, gold plate
-
A106 Gold over brass
A156 Gold over brass
-
Steel, cadmium plated with yellow chro-
mate supplementary coating
-
Stainless steel
MECHANICAL FEATURES
Sizes
Coupling
Polarization
Contact Spacing
Contact Termination
- Five shell sizes: E, A, B, C, and D
- Friction or jackscrew
- Keystone-shaped shells
- .075 (1.91)
- Crimp snap-in
A197 Tin/Lead over steel
*Brass non-magnetic also available
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278
Double Density D - .075" Contact Spacing
Standard Shell
M
A
B
10˚ (TYP)
K
G
J
L
2D
+
+
D
E
+
+
H
C
V
TWO MTG. HOLES
.123 + .005
_
(3.12 + 0.13)
_
T
Part Number
by Shell Size
2DE19P
2DE19S
2DA31P
T
+ .020 (0.51)
- .000 (0.00)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.236 (5.99)
Part Number
by Shell Size
2DB52S
2DC79P
2DC79S
2DD100P
2DD100S
T
+ .020 (0.51)
- .000 (0.00)
.236 (5.99)
.236 (5.99)
.236 (5.99)
.236 (5.99)
.236 (5.99)
.856(21.74)MAX.
2DA31S
2DB52P
Float Mount
A
B
10˚ (TYP)
+
+
K
J
N
E
.032 (.812)
TOTAL
DIAMETRAL
FLOAT
+
G
D
+
H
M
V
TWO MTG. HOLES
.0885 + .0025
_
(2.248 + 0.064)
_
C
Part Number
A
by Shell Size + .015 (0.38)
_
2DE19P
2DE19S
2DA31P
2DA31S
2DB52P
2DB52S
2DC79P
2DC79S
2DD100P
2DD100S
1.213 (30.81)
1.213 (30.81)
B
C
D
E
G
H
J
K
L
M
N
+ .010 (0.25) + .010 (0.25) + .010 (0.25) + .015 (0.38) + .010 (0.25) + .010 (0.25) + .010 (0.25) + .010 (0.25) + .010 (0.25) + .010 (0.25) + .010 (0.25)
_
_
_
_
_
_
_
_
_
_
_
.697 (17.70)
.640 (16.26)
.984 (24.99)
.984 (24.99)
.360 (9.14) .494 (12.55)
.308 (7.82) .494 (12.55)
.759 (19.28) .422 (10.72)
.759 (19.28) .422 (10.72)
.036 (.914)
.032 (213)
.036 (.914)
.032 (213)
.036 (.914)
.032 (213)
.036 (.914)
.032 (213)
.036 (.914)
.032 (213)
.236 (5.99)
.243 (6.17)
.236 (5.99)
.243 (6.17)
.231 (5.87)
.243 (6.17)
.231 (5.87)
.243 (6.17)
.231 (5.87)
.243 (6.17)
.055 (1.40)
.047 (1.19)
.055 (1.40)
.047 (1.19)
.055 (1.40)
.047 (1.19)
.055 (1.40)
.047 (1.19)
.055 (1.40)
.047 (1.19)
.422 (10.72)
.429 (10.90)
.422 (10.72)
.429 (10.90)
.426 (10.82)
.429 (10.90)
.426 (10.82)
.429 (10.90)
.426 (10.82)
.429 (10.90)
.120 (3.05)
.120 (3.05)
.120 (3.05)
.120 (3.05)
.129 (3.28)
.120 (3.05)
.129 (3.28)
.120 (3.05)
.129 (3.28)
.120 (3.05)
V
Max.
.555 (14.10)
.555 (14.10)
.555 (14.10)
.555 (14.10)
.555 (14.10)
.555 (14.10)
.555 (14.10)
.555 (14.10)
.555 (14.10)
.555 (14.10)
1.541 (39.14) 1.025 (26.03) 1.312 (33.32)
1.541 (39.14)
.968 (24.58) 1.312 (33.32)
.360 (9.14) .494 (12.55) 1.083 (27.51) .422 (10.72)
.308 (7.82) .494 (12.55) 1.083 (27.51) .422 (10.72)
.378 (9.60) .494 (12.55) 1.625 (41.27) .422 (10.72)
.308 (7.82) .494 (12.55) 1.625 (41.27) .422 (10.72)
.378 (9.60) .494 (12.55) 2.272 (57.71) .422 (10.72)
.308 (7.82) .494 (12.55) 2.272 (57.71) .422 (10.72)
2.088 (53.03) 1.583 (40.21) 1.852 (47.04)
2.088 (53.03) 1.508 (38.30) 1.852 (47.04)
2.729 (69.31) 2.231 (56.67) 2.500 (63.50)
2.729 (69.31) 2.156 (54.76) 2.500 (63.50)
2.635 (66.92) 2.127 (54.02) 2.406 (61.11) .484 (12.29) .605 (15.37) 2.178 (55.32) .534 (13.56)
2.635 (66.92) 2.062 (52.37) 2.406 (61.11) .420 (10.67) .605 (15.37) 2.178 (55.32) .534 (13.56)
For shell with float mounts, add letter F after shell size, e.g., 2DEF19P.
Jackscrew/Jackpost Asembly
.180 + .025 Grip
_
(4.57 + 0.64) Length
_
#4-40 UNC-2B
THREAD
#4-40 UNC-2A THREAD
.025 (0.64)
MAX.
#4-40 UNC-2A THREAD .025 (0.64)
MAX.
.180 + .025 Grip
_
(4.57 + 0.64) Length
_
.233 (5.92)
.223 (5.66)
.620 + .010
_
(15.75 + 0.25)
_
.230 (5.84) MAX.
.325 + .015
_
(8.26 + 0.38)
_
#4-40 UNC-2A THREAD
Standard (F172) Jackscrew
(factory installed)
Low Profile (F173) Jackscrew
(factory installed)
Jackpost (F171)
Front Panel Connector Mounting Only
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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279
Embedded System
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