Quadrax Contacts
MIL-DTL-38999, Series III, General Description
AMPHENOL QUADRAX CONTACTS
Offers several advantages for high data transfer rates, low power consumption,
and excellent EMI compatibility. Four strategically spaced inner contacts form
two 100 or 150 Ohm matched impedance differential pairs. The Outer contact
has a rugged wall section for durability. Available in size 8 crimp termination
style. Also available in size 8 with PC tails (see pages 22-23). Requires
modification of MIL-DTL-38999 connector to accommodate keyed contacts.
CABLE ILLUSTRATION - QUADRAX CONTACT
Contacts
(4) CENTER
CONDUCTORS
BRAID
JACKET
Quadrax Pin with 8P8C “RJ45” Jack
INSULATION
Quadrax, Differential Twinax
TYPICAL QUADRAX
SOCKET CONTACT
Has socket outer
contact with
a socket
inner contact
TYPICAL QUADRAX
PIN CONTACT
Has pin outer
contact
with a pin
inner contact
QUADRAX CONTACTS ARE GOLD
PLATED, CRIMP TERMINATION
Suggested Numbering for Quadrax Contacts
ORIENTATION
KEY
Finish of mating contact parts: supplied with
0.000050 min. gold over nickel on
mating interface.
4
1
2
1
QUADRAX SIZE 8 CONTACT
PERFORMANCE:
Bandwidth:
Data Rate:
Voltage Rating:
3
2
3
4
Up to 1.25 GHz
Exceeding 2.5 Gbps.
500 Vrms max. @ sea
level
Dielectric Withstanding Voltage:
1000 VAC rms between all inner contacts
@ sea level, 500 VAC rms between inner
and outer contacts @ sea level
PIN CONTACT
MATING FACE
SOCKET CONTACT
MATING FACE
Differential Pairs, contacts 1-3, 2-4.
Quadrax differential pairs are 1 and 3, 2 and 4.
See page 19 for part number ordering of popularly used 38999 Series III
connectors with 100 ohm quadrax contacts.
GUIDE FOR SELECTING A BACKSHELL:
See required backshell dimensions to avoid
interference between piggyback grommets
used on size 8 cavities and the backshell.
Size
17
19
21
23
25
A Dia Min
.734
.869
.869
1.088
1.234
L Min
.540
.540
.540
.540
.540
SUGGESTED STRAIN RELIEF - INSERT ARRANGEMENTS 9-5 OR 19-18 WITH QUADRAX CONTACTS
Due to the piggyback grommet interference with normal strain reliefs on the shell size 9 only, the recommended strain relief for the
connector is: Amphenol part number TGW-R-5309-10 (OD Cad) or TGF-R-5309-10 (Electroless nickel)
18
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How to Order D38999, Series III Connectors with
Standard 100 Ohm Quadrax Contacts
21-033385-051 Socket
21-033384-051 Pin Contacts*
1.
Connector Type
For all other quadrax contacts or differential twinax contacts, please consult Amphenol Aerospace for part numbers.
2.
Shell Type
3.
Service Class
4.
Shell Size
–
Insert Arrangement
5.
Contact Type
6.
Alternate Keying
Position
TVP
00
RQW
21–75
P
B
Quadrax, Differential Twinax
1. CONNECTOR TYPE
TV
TVP
CTV
CTVP
Tri-Start series connector with metal shells
Back panel mounted receptacle with metal shells
Tri-Start series connector with composite shells
Back panel mounted receptacle with composite shells
6.
Alternate Keying Position
Locksmith keying–rotation of minor keys. See Series III alternate
positions below “N” not required for normal position.
Tri-Start Alternate
Positions
A plug with a given
rotation letter will mate
with a receptacle with the
same rotation letter. The
angles for a given
connector are the same
whether it contains pins or
sockets. Inserts are not
rotated in conjunction with
the master key/keyway.
AR
BSC
BR
BSC
MAIN
KEYWAY
˚
RECEPTACLE
(front face shown)
2. SHELL STYLE
00
02
06
07
Wall mount receptacle
Box mount receptacle available only with the PCB tails
and epoxy backfilled (non-removable)
Straight plug
Jam nut receptacle
˚
CR
BSC
DR
BSC
˚
Connectors
˚
MAIN
KEYWAY
PLUG
(front face shown)
AP
BSC
BP
BSC
˚
˚
CP
BSC
˚
DP
BSC
˚
3. SERVICE CLASS WITH QUADRAX
RQF
RGQF
RQW
RGQW
RQK
RGQK
QDT
GQDT
QDZ
Electroless nickel plated
Electroless nickel plated ground plane
Olive drab cadmium plate
Olive drab cadmium plated ground plane
Corrosion resistance stainless steel
Stainless steel ground plane
Durmalon plated, Nickel-PTFE alternative to cadmium
Groundplane Durmalon
Zinc nickel black conductive
Shell
Size
Key & Keyway
Arrangement
Identification
Letter
AR°
or
AP°
BSC
105
102
80
35
64
91
95
113
90
53
119
51
80
135
49
66
62
79
80
135
49
66
62
79
80
135
49
66
62
79
BR°
or
BP°
BSC
140
132
118
140
155
131
141
156
145
156
146
141
142
170
169
140
145
153
142
170
169
140
145
153
142
170
169
140
145
153
CR°
or
CP°
BSC
215
248
230
205
234
197
208
182
195
220
176
184
196
200
200
200
180
197
196
200
200
200
180
197
188
188
188
188
188
188
DR°
or
DP°
BSC
265
320
312
275
304
240
236
292
252
255
298
242
293
310
244
257
280
272
293
310
244
257
280
272
293
310
244
257
280
272
9
11, 13,
and 15
4.
Select a Shell Size and Insert Arrangement
See insert arrangements available with Quadrax contacts on
pages 11-12. Shell size and insert arrangements are together in
one chart. First number represents shell size, second number
is the insert arrangement.
17 and 19
5. CONTACT TYPE
P
S
Pin contacts
Socket contacts
21, 23,
and 25
* The incorporation of Quadrax or Differential Twinax contacts requires a modified
connector to accommodate keyed contacts.
25L, 33,
and 37
N
A
B
C
D
E
N
A
B
C
D
E
N
A
B
C
D
E
N
A
B
C
D
E
N
A
B
C
D
E
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19
Quadrax Contacts
MIL-DTL-38999, Series III*, Contact Part Number Guide by Cable
QUADRAX CONTACTS FOR USE IN TV-R CONNECTORS
Inner
Impedance Conductor
(AWG)
(Ohms)
90
24
Ethernet (100 Mbps),
1000 Base-T Gigabit
Ethernet (1 Gbps)
PIC USB2422
GORE RCN 7688
NF22Q100-01
Tensolite NF22Q100
Thermax 956-5
Gore RCN8513
JSFY18-3
Tensolite NF22Q100 Special Box pattern, only mates
with 21-0333( )-181
S280W502-4/BMS13-72T03C04G024
21-033384-171
(L-2119-BN)
21-033384-181
(L-2119-BP)
21-033384-141
(BACC47GM1)
21-033385-171
(L-2119-BN)
21-033384-181
(L-2119-BP)
21-033385-141
(BACC45GN1)
21-033385-161
(L-2119-BE)
21-033384-061
(L-2119-H)
21-033385-061
(L-2119-H)
Electrical
Protocol††
USB2.0 (480 Mbps)
Contact Part Number
(Termination Instruction Sheet)**
Cable
USB2 (28433/02171LX-4)
Pin
21-033384-101†
(L-2119-EK)
21-033384-381
(L-2119-EU)
Socket
21-033385-101†
(L-2119-EK)
21-033385-381
(L-2119-EU)
Contacts
100
22
Ethernet (100 Mbps),
1000 Base-T Gigabit
Ethernet (1 Gbps)
Ethernet (100 Mbps),
1000 Base-T Gigabit
Ethernet (1 Gbps)
Quadrax, Differential Twinax
Ethernet (100 Mbps),
1000 Base-T Gigabit
Ethernet (1 Gbps)
Tensolite NF24Q100-01 (same as 21-03338( )-51, uses 21-033384-161
EMI Piggyback)
(L-2119-BE)
ABS0972
ABS1503 KD 24
Draka Fileca F-4703-3
Draka Fileca F-4704-5
Ethernet, 1000 Base-T
F4704-4
Gigabit Ethernet
Filotex ET 2PC236
Filotex ET 2PF870
PIC Wire E50424
Tensolite 23450/04090X-4(LD)
24443/03130X-4(LD)
24443/03166X-4(LD)
24443/9P025X-4(LD)
24443/C20714X-4(LD)
24450/0120X-4(LD)
100
24
BMS13-72T03C04G024
GORE GSC-01-81869-01
Ethernet, 1000 Base-T NF24-2Q100
Gigabit Ethernet
NF24Q100-01
NF24Q100-01-200C (Space)
Pic Wire E51424
S280W502-4
Tensolite NF24Q100
Thermax MX100Q-24
Thermax T956-4T200
TYCO CEC-RWC-18664
Serial FPDP
Tensolite NF24Q100
Applications
(2.5 Gbps)
(Typical app run at 150 NF24Q100-01
for 2.5 Gbps applications
Ohms) HDMI 1.3
Meets EN3155-074
ABS1503KD24
F-4703
Gore RCN9034
NF24Q100-01
** Termination instructions are packaged with each contact and can be found on-line at:
www.amphenol-aerospace.com/serviceinstructions.asp
21-033384-021
(L-2119-A)
21-033385-021
(L-2119-A)
21-033384-051
(L-2119-D)
21-033385-051
(L-2119-D)
21-033384-191
(L-2119-BS)
21-033384-281
(L-2119-DL)
21-033384-391
(L-2119-EY)
21-033385-191
(L-2119-BS)
21-033385-281
(L-2119-DL)
21-033385-391
(L-2119-EY)
† Consult Amphenol Aerospace for current release
of this contact or instruction sheet if applicable.
20
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Quadrax Contacts
MIL-DTL-38999, Series III*, Contact Part Number Guide by Cable
QUADRAX CONTACTS FOR USE IN TV-R CONNECTORS
Inner
Impedance Conductor
(AWG)
(Ohms)
Electrical
Protocol††
PIC E51426
Ethernet (100 Mbps),
1000 Base-T Gigabit
Ethernet (1 Gbps)
100
26
Ethernet (100 Mbps),
1000 Base-T Gigabit
Ethernet (1 Gbps)
Tensolite NF26-2Q100
Tensolite NF26Q100
Tensolite NF26Q100-01
Wirenetics W-3714-379
Draka Fileca F-4704-6
Gore RCN 8672
Cable RCN 8422
Gore RCN 8647
Gore RCN 8687
IEEE 1394B Firewire
110
24
IEEE 1394B Firewire
JSFY18
IEEE 1394B Firewire
IEEE 1394B Firewire
Gore RCN8487
JSFY18
Gore RCN8647
Tensolite 24450/03089X-4(LD)
JSFY02-1
21-033384-151
(L-2119-AW)
21-033384-291
(L-2119-DR)
21-033384-301
(L-2119-DR)
21-033384-211
(L-2119-CD)
21-033384-221
(L-2119-FF)
21-033384-231
(L-2119-CR)
21-033385-151
(L-2119-AW)
21-033385-291
(L-2119-DR)
21-033385-301
(L-2119-DR)
21-033385-211
(L-2119-CD)
21-033385-221
(L-2119-FF)
21-033385-231
(L-2119-CR)
21-033385-241†
21-033385-271
(L-2119-CT)
21-033451-051
(L-2119-DV)
21-033385-031
(L-2119-B)
21-033384-071
(L-2119-AB)
21-033385-071
(L-2119-AB)
Contact Part Number
(Termination Instruction Sheet)**
Cable
Pin
Socket
Quadrax, Differential Twinax
Contacts
Tensolite 24450/03089X-4(LD) Same as 21-03338( )-211
21-033384-241†
but Box pattern, mates with 21-03338( )-241 only
Gore RCN7625
Harbour Data Master Q150-24 (19)
21-033384-271
(L-2119-CT)
21-033450-051
(L-2119-DV)
21-033384-031
(L-2119-B)
24
Tensolite 24483/02006X-4 (LD)
Tensolite 26473/02006X-4(LD)/Gore RCN8328
(not for new designs, use 21-033450/1 series)
Gore RCN8328
150
Fibre-Channel
(1 GBPS, 2 GBPS,
1G/2G), 1000 Base-CX
(1.25 GBPS), SCSI-2
(3.2 GBPS)
Fibre-Channel
(1 GBPS, 2 GBPS,
1G/2G), 1000 Base-CX
(1.25 GBPS), SCSI-2
(3.2 GBPS)
Tensolite 26473/02006X-4(LD) Same as 21-033384/
5-31 but box pattern (not for new designs, use
21-033450/1 series) Gore RCN8328
26
Gore RCN8328
Tensolite 26473/02006X-4(LD)
Gore RCN8328 (same as 21-033450/1-1 except box
pattern). Mates with 21-033450/1-11 only.
Tensolite 26473/02006X-4(LD)
21-033384-201†
21-033385-201†
21-033450-001
(L-2119-BW)
21-033451-001
(L-2119-BW)
21-033450-011†
(L-2119-CS)
21-033451-011†
(L-2119-CS)
Daniels crimping tools are available from
Daniels Mfg. Corp. 6103 Anno Ave., Orlando, FL 32809
* Requires modified connector to accommodate keyed contacts.
** Termination instructions are packaged with each contact and can be found on-line at:
www.amphenol-aerospace.com/serviceinstructions.asp
† Consult Amphenol Aerospace for current release of this contact or instruction sheet if applicable.
†† Test reports available for indicated protocols. Consult Amphenol Aerospace.
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21
Quadrax Contacts
MIL-DTL-38999, Series III*, Contact Part Number Guide for PCB Contacts
QUADRAX PCB CONTACTS
Impedance
(Ohms)
L Dim
.36
.418
.428 ± .015
.494
.552 ± .015
100
.582
.580 ± .015
.605
.615
.647 ± .015
.666
.672
.689 ± .015
QUADRAX PCB CONTACTS
Impedance
(Ohms)
L Dim
.901
.914
100
.928 ± .015
.928 ± .015
.939
.939
100/150
.939
.94
.946
.971
.991 ± .015
1.009
100
1.035
1.035
1.035 ± .015
1.169
1.196 ± .015
1.366
110
TBD
X
Pretinned
Contact Part Number
Pin
Socket
21-033398-391 21-033397-391
21-033398-491 21-033397-491
21-033398-751 21-033397-751
21-033398-231 21-033397-231
21-033398-741 21-033397-741
21-033398-521 21-033397-521
21-033398-661 21-033397-661
21-033398-191 21-033397-191
21-033398-141 21-033397-141
21-033398-761 21-033397-761
21-033398-531 21-033397-531
21-033398-371 21-033397-371
21-033398-721 21-033397-721
21-033398-511 21-033397-511
21-033398-111 21-033397-111
21-033398-581 21-033397-581
21-033398-771 21-033397-771
21-033398-241 21-033397-241
21-033398-271 21-033397-271
21-033398-461 21-033397-461
21-033398-691 21-033397-691
21-033398-221 21-033397-221
Pretinned
Contact Part Number
Pin
Socket
21-033398-341 21-033397-341
21-033398-381 21-033397-381
21-033398-641 21-033397-641
21-033398-671 21-033397-671
21-033398-601 21-033397-601
21-033398-361 21-033397-361
21-033398-591 21-033397-591
21-033398-311 21-033397-311
21-033398-541 21-033397-541
21-033398-481 21-033397-481
21-033398-701 21-033397-701
21-033398-401 21-033397-401
21-033398-021 21-033397-021
21-033398-291 21-033397-291
21-033398-651 21-033397-651
21-033398-421 21-033397-421
21-033398-621 21-033397-621
21-033398-611 21-033397-611
21-033398-711 21-033397-711
PCB
100/150
Quadrax, Differential Twinax
.699
.708
.721
.740 ± .015
.741
.741
.761
.770 ± .015
.775
.788
.788
.788 ± .015
X
Daniels crimping tools are available from
Daniels Mfg. Corp. 6103 Anno Ave., Orlando, FL 32809
* Requires modified connector to accommodate keyed contacts.
21-033398-551 21-033397-551
21-033398-251 21-033397-251
21-033398-731 21-033397-731
21-033398-281 21-033397-281
21-033398-561 21-033397-561
21-033398-631 21-033397-631
21-033398-431 21-033397-431
21-033398-301 21-033397-301
100
.806
.815
.815 ± .015
.819
.836
.84
.859
.866
.866 ± .015
.871
.875
.889
X
21-033398-091 21-033397-091
21-033398-121 21-033397-121
21-033398-031 21-033397-031
21-033398-681 21-033397-681
21-033398-351 21-033397-351
21-033398-501 21-033397-501
21-033398-471 21-033397-471
Indicated length given in chart is the distance
from the rear of the contact retention shoulder
to the tip of the PCB tails.
L DIM. LENGTH
INDICATED IN
TABLE COLUMN
Note: It does not indicate stickout
length when installed in
D38999 connector.
22
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