637/638 SERIES
D-Sub Connectors: Vertical, High Density
Features:
•
•
•
•
•
•
•
•
Plug and receptacle in 15, 26, 44, 62 or 78 contact sizes
Pin and socket contact mating design with P.C. tail termination
Metal shell provides EMI/RFI shielding, plug shell indents provide grounding and additional mating retention
Grounding features include boardlock for exceptional retention to P.C. board
Mounting options for panel mount or connector mating include through hole, threaded hole and threaded
standoffs
D-shaped connector mating outline provides polarization
Design based on requirements of MIL-C-24038, EIA RS-232 and RS-449
High profile available in receptacle only
Specifications:
Insulator Material
PBT with glass fiber, UL 94V-0, color: Black
Contact Material
Plug (pin): Brass
Receptacle (socket): Brass or phosphor bronze
Contact Plating
Selective gold (see ordering code) over nickel for the mating area, tin plating for tail area
Shell Material
Nickel plated steel (optional tin plating)
Current Rating
3 amps
Contact Resistance
15 milliohms maximum
Insulation Resistance
1000 megaohms minimum
Dielectric Withstanding Voltage
500 V AC rms at Sea Level
Operating Temperature
-55°C To +85°C (upto +125°C for high temp)
Insertion Force
16 oz (4.45 N) Maximum Per Contact Position
Withdrawal Force
1 oz (0.28 N) Minimum Per Contact Position
Ordering Code:
www.edac.net
Contact P/N:
638-292-271
"Wire Gauge (AWG):
24 - 26
Contact P/N:
637-292-271
Wire Gauge (AWG):
24 - 26
customerservice@edac.net
637/638 SERIES
D-Sub Connectors: Vertical, High Density
PLUG 637 SERIES
STANDARD PROFILE
CRIMP TYPE
A±0.35
44
5.0
62 PIN
31.75
2.99
21
42
62
1.785
0.625
Ø1.05-62 HOLES
16.66
1
10
2-Ø3.05
23.52
Ø1.05-44 HOLES
12.50
2.29
Ø1.05-26 HOLES
30
44
1.655
12.50
2.50
15
5
10
1
6
3.96
2.80
0.635
26
1.655
0.635
6.10±0.35
15 PIN
23.52
31
9
18
19
44 PIN
1
16
16.00±0.35
2.29
2.80
15
11
1.40
0.89
2-Ø3.05
78 CONTACT
2.29
3.96
43
2.41
15~62 CONTACT
26 PIN
16.66
3.96
31.75
1
22
4.8±0.5
5.6 MAX
10°-2
15.40±0.25
31
6.10±0.35
Ø3.20 REF
30
4.0 REF
12.60±0.25
15
3.96
8.48±0.15
1
16
16.00±0.35
0.9
6.00
6.10±0.35
3.96
C±0.15
2-#4-40UNC
12.60±0.25
B±0.10
Ø1.05-15 HOLES
RECEPTACLE 638 SERIES
STANDARD PROFILE
CRIMP TYPE
A±0.35
C±0.15
0.9
6.0
30
31
44
5.6 MAX
10°-2
62 PIN
16.66
2.29
22
Ø1.05-62 HOLES
1
18
26
43
0.625
2.80
9
3.96
3.96
16.66
1
1.785
1.655
12.50
2.29
2.80
1
30
44
1.655
0.635
16
31
NUMBER OF
CONTACTS
5
11
15
1.40
Ø1.05-44 HOLES
www.edac.net
19
Ø1.05-26 HOLES
15 PIN
23.52
3.96
3.96
15
0.635
16.00±0.35
6.00±0.35
10
2-Ø3.05
44 PIN
23.52
2.29
15~62 CONTACT
15.40±0.25
31.75
2.99
21
42
62
4.8±0.5
26 PIN
31.75
2.41
6.00±0.35
Ø3.20 REF
1
16
15
16.00±0.35
4.0
1.6
12.60±0.25
6.10±0.35
3.96
7.90±0.15
2-#4-40UNC
12.60±0.25
B±0.10
78 CONTACT
12.50
2.54
Ø1.05-15 HOLES
1
6
11
0.89
2-Ø3.05
A
Inch
B
(mm)
C
PLUG
Inch
(mm)
Inch
(mm)
C
RECEPTACLE
Inch
(mm)
15
1.213 (30.80)
.984
(24.99)
.666
(16.92)
.642
(16.30)
26
1.541 (39.15)
1.312
(33.32)
.994
(25.25)
.970
(24.65)
44
2.087 (53.00)
1.852
(47.04) 1.534
(38.96)
1.512
(38.40)
62
2.728 (69.30)
2.500
(63.50) 2.182
(55.42)
2.157
(54.80)
customerservice@edac.net
637/638 SERIES
D-Sub Connectors: Vertical, High Density
78 PIN STANDARD PROFILE
PLUG 637 SERIES
2-Ø3.20
6.24
2.08
15.40±0.38
Ø3.05
61.10
2.42
2.08
67.00±0.38
61.10±0.25
52.80±0.13
11.30±0.13
78-Ø1.10
2.420
2.08
6.24
13.42±0.25
0.60
4.50±0.38
0.5 MAX
1.0 MAX
6.10±0.25
11.00±0.25
RECOMMENDED PCB LAYOUT
RECEPTACLE 638 SERIES
67.00±0.38
61.10±0.25
52.20±0.13
2.08
61.10
2.42
2-Ø3.20
6.24
2.08
15.40±0.38
Ø3.05
10.90±0.13
78-Ø1.10
2.420
www.edac.net
4.50±0.38
0.5 MAX
1.0 MAX
6.00±0.25
10.90±0.25
RECOMMENDED PCB LAYOUT
0.60
2.08
6.24
13.42±0.25
customerservice@edac.net
637/638 SERIES
D-Sub Connectors: Vertical, High Density
RECEPTACLE 638 SERIES
HIGH PROFILE
A±0.30
B±0.10
2 X #4-40 UNC
7.90±0.15
78S=10.90±0.15
C±0.15
1
78S=15.4±0.3
12.6±0.3
Ø0.7±0.05
D±0.25
www.edac.net
NUMBER OF
CONTACTS
Inch
(mm)
15
1.213
26
1.543
44
62
78
15S=2.29
26S=2.29
PITCH 44S=2.29
62S=2.41
78S=2.41
A
4.10
5.4±0.25
9.4±0.3
11.0±0.20
0.9 5.8±0.2
10°±1.5°-2
3.96±0.1
10.9±0.2
C
B
D
Inch
(mm)
Inch
(mm)
(30.80)
.984
(24.99)
.643
(39.20)
1.312
(33.32)
.972
2.087
(53.00)
1.852
2.732
(69.40)
2.500
2.638
(67.00)
2.406
Inch
(mm)
(16.34)
.756
(19.20)
(24.70)
1.091
(27.70)
(47.04) 1.512
(38.40)
1.618
(41.10)
(63.50) 2.157
(54.80)
2.256
(57.30)
(61.10) 2.055
(52.20)
2.169
(55.10)
customerservice@edac.net
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