1
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Product Data Sheet
New “Split-Pair” Quadrax Contacts & Cable
Assemblies for MIL-DTL-38999, Series III Cylindricals
for use with CAT6A Type Cable
Amphenol Aerospace offers the high performance
interconnect solution for CAT6A type cable.
FEATURES & BENEFITS:
• Overall higher bandwidth than standard CAT5E quadrax-Supports
up to 6.5 Gbps per pair
• Enhanced crosstalk performance (compared to standard quadrax)
due to compatibility with shielded twisted pair of cables
• Can be used for a variety of high speed applications beyond
current quadrax design**
• Four strategically spaced inner contacts form two 100 Ohm
matched impedance differential pairs
• Outer contact has rugged wall section for durability
• Available in size 8 crimp termination style
• Also available in size 8 PC tails
• Can be installed into existing quadrax contact connector cavities
• Requires modification of MIL-DTL-38999 connector to accommo-
date keyed contacts
APPLICATIONS:
For use with, but not limited to, the
following electrical protocols :
•
•
•
•
•
•
•
10/100/1000/10GBASE-T Ethernet
DVI
USB 2.0/ 3.0
Serial RapidIO (up to 3.125 Gbps)
PCI-Express 2.0
HDMI 1.3a
SATA 2.0 (up to 3 GHz)
Suggested Numbering for Quadrax Contacts
PDS-219-3
MIL-DTL-38999 Series III Connectors with “Split-Pair”
Quadrax Contacts for use with CAT6A Type Cable
“Split-Pair” Quadrax Contacts for use with CAT6A
Type Cable
1
4
2
3
3
2
1
4
See page 7: Guide for Selecting
High Frequency Contacts and Cables
PIN CONTACT
MATING FACE
SOCKET CONTACT
MATING FACE
SPLIT-PAIR QUADRAX CONTACT*
PART NUMBERS:
Crimp Style Part Number
PIN 21-033470-001
SOCKET 21-033471-001
PIN 21-033470-021
SOCKET 21-033471-021
Cable
Thermax
1536-224
Thermax
1536-195
AWG
24
26
Differential Pairs: 1 & 4, 2 & 3
SPLIT-PAIR QUADRAX
SOCKET CONTACT
CRIMP TOOLS:
Outer Contact
DANIELS M22520/5-01
with die set Y1999 or
M22520/5-45
Inner Contact
DANIELS M22520/2-01
with positioner K1777
SPLIT-PAIR QUADRAX
PIN CONTACT
Daniels crimping tools are available from Daniels Mfg. Corp.
6103 Anno Ave., Orlando, FL 32809
REMOVAL TOOL:
M81969/14-12
Amphenol
Aerospace
* Patent pending.
** See Amphenol
®
Quadrax Contacts in the High Speed Section of the combined
circular interconnect product catalog from Amphenol, 12-C,
online at www.amphenol-aerospace.com).
Call 800-678-0141 or visit us at www.amphenol-aerospace.com
2
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Product Data Sheet
New “Split-Pair” Quadrax Contacts & Cable
Assemblies for MIL-DTL-38999, Series III Cylindricals
PCB QUADRAX PIN
PCB Pin Part Numbers
21-033466-011
21-033466-021
21-033466-031*
21-033466-041
21-033466-051
21-033466-061
21-033466-071
21-033466-081
Impedance
Length ±.015
1.035
.815
.815
.866
.494
.582
.815
.840
PDS-219-3
PCB QUADRAX SOCKET
PCB Socket Part Numbers
21-033467-011
21-033467-021
21-033467-031*
21-033467-041
21-033467-051
21-033467-061
21-033467-071
21-033467-081
LENGTH
INDICATED IN
TABLE COLUMN
Impedance
100 Ohm
100 Ohm
Length ±.015
1.035
.815
.815
.866
.494
.582
.815
.840
*Pretinned
Indicated length given in charts above is the
distance from the rear of the contact retention
shoulder to the tip of the PCB tails.
Note: it does not indicate stickout length
when installed in D38999 connector.
TRANSITION ADAPTERS FOR LAUNCHING SIGNALS TO PC BOARDS
100 OHM QUADRAX TRANSITION ADAPTERS
FOR LAUNCHING CONTROLLED IMPEDANCE SIGNALS TO PC BOARDS
Quadrax Type Adapter/
Cable or PCB Tail Length
Quadrax Plug Adapter/
Thermax 1536-224
PCB Quadrax Receptacle 90
Degree Adapter/
Tail Length .110
PCB Quadrax Receptacle
Straight Adapter/
Tail Length .110
Quadrax Receptacle 90 degree
Adapter with cable to board/
Thermax 1536-224
Quadrax Receptacle Straight
Adapter with cable to board/
.195 tail length Thermax
1536-224
Illustration of Adapter
Plug
Mating plugs and receptacles
21-033468-011
Part Number
Receptacle
Impedance
(Ohms)
Mating
Thread
Size
21-033469-001
21-033469-011
100
.375
Wired to board
21-033469-021
21-033469-031
Amphenol
Aerospace
Call 800-678-0141 or visit us at www.amphenol-aerospace.com
3
Call 800-678-0141
Product Data Sheet
Insert Patterns - for MIL-DTL-38999,
Series III Cylindricals
Incorporating “Split-Pair”
Quadrax Contacts
CONTACT LEGEND
8
10
Quadrax or
Differential Twinax
12
16
PDS-219-3
20
22D
This illustrated listing represents the most readily available
patterns incorporating Amphenol’s new split-pair quadrax
front face of pin inserts illustrated
contacts as well as standard quadrax and differential twinax
contacts within D38999, Series III cylindrical connectors.*
If you require other arrangements than what are shown here, consult Amphenol for further availability.
In most cases, unless otherwise stated, size 8 cavities can be filled with quadrax or differential twinax
contacts. Arrangements can be mixed with any size 8 coax, and/or concentric twinax or triax contacts.
1
A
D
6
1
B
A
7
10
C
B
6
5
4
8
9
2
3
17
30
11
Insert Arrangement
Number of Contacts
Contact Size
9-5
1
8
Grounded
17-2
38
1
22D 8 Twinax
17-22
2
12
2
8
17-52
2
8
Meets Boeing
Specification
17-60
8
22D
2
8
R
P
N
M
L
K
J
H
S
T
U
A
B
C
D
E
F
G
S
h
U
W
V
f
A
C
B
g
16
14 15
13
12
11
10
9
A
1
2
3
4
5
8
7
8
C
B
D
A
N
R
K
M
E
Insert Arrangement
Number of Contacts
Contact Size
19-18
14
22D
4
8
12
19-31
1
2
8
22D 12
19-AD
16
20
1
8
21-75
4
8
22
16
29
46
64
72
74
79
85
94
81
75
S
R
P
N
M
U
T
A
B
C
D
V
E
F
E
A
1
7
24
18
25
32
67
B
F
41
59
J
L
K
H
G
D
C
6
15
19
33
26
42
60
68
76
82
99
93
84
53
21
28
78
Insert Arrangement
Number of Contacts
Contact Size
21-79
17
22D
2
8
23-6
6
8
25-7
97
22D
2
8
Amphenol
Aerospace
* Requires modification of MIL-DTL-38999 connector to accommodate keyed contacts.
Call 800-678-0141 or visit us at www.amphenol-aerospace.com
4
Call 800-678-0141
Product Data Sheet
Insert Patterns - for MIL-DTL-38999,
Series III Cylindricals
Incorporating “Split-Pair”
Quadrax Contacts
CONTACT LEGEND
8
10
Quadrax or
Differential Twinax
12
16
PDS-219-3
20
22D
front face of pin inserts illustrated
U
A
B
G
H
R
C
P
D
E
N
M
Y
L
Z
p
n
m
S
q
w
v
T
a
b
r
A
B
C
V
D
e
t
u
f
g
h
X
G
H
W
S
R
P
E
F
N
M
X
L
K
Y
3
Z
4
7
W
5
A
B
C
T
1
6
2
G
H
V
U
D
E
F
c
s
d
F
k
K
J
J
Insert Arrangement
Number of Contacts
Contact Size
25-8
8
8
25-17
36
22D
6
8
10
20
25-20
13
16
3
8
4
12
W
V
U
T
S p
R
P
n
z
m
k
M
y
h
L
g
r
q
s
AA
t
u
A
X
v
B
Y
Z
a
C
D
7
D
8
1
A
2
b E
w
x
f
K
J
d
e
c
G
H
5
4
F
6
C
B
3
N
Insert Arrangement
Number of Contacts
Contact Size
40
25-46
4
2
20 16 8
25-62
8
16
4
8
Amphenol
Aerospace
Call 800-678-0141 or visit us at www.amphenol-aerospace.com
5
Call 800-678-0141
Product Data Sheet
New “Split-Pair” Quadrax Contacts
for MIL-DTL-38999, Series III Cylindricals
Frequencies & Performance Data
FREQUENCIES OF INTEREST
For use with the following, but not
limited to, electrical protocols :
•
•
•
•
•
•
•
10/100/1000/10GBASE-T Ethernet
DVI
USB 2.0
Serial RapidIO (up to 3.125 Gbps)
PCI-Express 2.0
HDMI 1.3a
SATA 2.0 (up to 3 GHz)
Frequency (GHz) Insertion Loss (dB) Return Loss (dB)
0.1
0.09
35.68
0.24
0.22
36.44
0.5
0.45
43.66
0.625
0.57
43.49
1
0.98
17.82
1.25
1.29
15.1
1.5
1.47
17.94
1.7
1.86
12.23
2
2.11
12.9
2.5
2.42
15.97
2.86
16.52
3
Insertion Loss
PDS-219-3
NEXT (dB)
62.36
42.87
43.63
53.68
49.26
43.57
46.02
48.01
37.45
29.9
35.94
FEXT (dB)
59.29
62.25
55.22
43.53
48.33
44.12
40.78
47.23
38.12
31.52
29.36
PERFORMANCE DATA
The following graphs on this page and the next
page provide performance data on Amphenol
®
10GBASE signal integrity (SI) quadrax contacts.
Testing was done with 2 mated contacts termi-
nated on both ends of 1 meter Thermax cable.
0
-0.5
-1.0
-1.5
-2.0
-2.5
dB
-3.0
-3.5
-4.0
-4.5
-5.0
-5.5
-6.0
-6.5
0.1
0.2
0.3
0.4
S-Parameters Magnitude
S1, 2
0.5 0.6 0.7 0.8
1
Frequency / GHz
2
3
4
5
0
-5
-10
-15
-20
dB
-25
-30
-35
-40
-45
-50
0.1
S-Parameters Magnitude
S1, 1
Return Loss
Amphenol
Aerospace
0.2
0.3
0.4
0.5
0.6 0.7 0.8
1
Frequency / GHz
2
3
4
5
Call 800-678-0141 or visit us at www.amphenol-aerospace.com
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