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10-503140-032 Datasheet, PDF (390/437 Pages) Amphenol Corporation – The Interconnection Leader
How to Order 38999, Series III Circular
With Quadrax 100 Ohm Contacts
Amphenol
Aerospace
Amphenol Tri-Start, 38999 Series III* Connectors can be
ordered with the following popularly used Quadrax contacts:
100 ohm quadrax 21-033385-051 socket contacts
100 ohm quadrax 21-033384-051 pin contacts
Use the following coded number ordering procedure :
1.
2.
3.
4.
Connector Type
Shell Type
Service Class
Shell Size –
Insert Arrangement
TVP
00
RQW
21–75
5.
Contact Type
P
6.
Alternate Keying
Position
B
For ordering of connectors with
any other quadrax contacts or
differential twinax contacts,
please consult Amphenol
Aerospace for part numbers.
Step 1. Select a 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
Step 2. Select a Shell Style
00
Wall mount receptacle
02
Box mount receptacle available only with the PCB tails
and epoxy backfilled (non-removable)
06
Straight plug
07
Jam nut receptacle
Step 3. Select a Service Class with Quadrax
RQF Electroless nickel plated aluminum
RGQF Electroless nickel plated ground plane aluminum
RQW Olive drab cadmium plate
RGQW Olive drab cadmium plated ground plane aluminum
RQB NiAlBronze
RGQB NiAlBronze ground plane
RQK Corrosion resistance stainless steel
RGQK Stainless steel ground plane
QDT Durmalon plated, Nickel-PTFE alternative to cadmium
GQDT Groundplane Durmalon
Step 4. Select a Shell Size and
Insert Arrangement
See insert arrangements available with quadrax contacts on
preceding pages. Shell Size and Insert Arrangements are together in
one chart. First number represents Shell Size, second number is the
Insert Arrangement
Step 5. Select Contact Type
P
Pin contacts
S
Socket contacts
Step 6. Select an 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)
˚ DR
BSC
˚ CR
BSC
MAIN
KEYWAY
PLUG
(front face shown)
˚ AP
BSC
˚ BP
BSC
˚ CP
BSC
˚ DP
BSC
Shell
Size
9
11, 13,
and 15
17 and 19
21, 23,
and 25
25L, 33,
and 37
Key & Keyway
Arrangement
Identification
Letter
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
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
* The incorporation of quadrax or differential twinax contacts requires a
modified connector to accommodate keyed contacts.
For more information on Tri-Start, MIL-DTL-38999 Series III connectors
see the section in this catalog.
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com 389