Description
Amphenol Triax connectors are used in
applications where maximum RF shielding and
minimum noise radiation are required.
Features/Benefits
• Available in 7/8-20 and 11/16-24 thr eading,
Triax C, Triax BNC and Triax TNC coupling
provides customer flexibility in their design.
• 5000V peak with Teflon insulators allows
for high temperature applications.
• Solder/Clamp assembly procedur e r equires
no special crimp tools.
• Precision machined for consistent performance
provides dependability.
Applications
• MIL-Aerospace
• Air-frame
• Shipboard
Triax Amphenol®
Triax
Specifications 174
Triax 7/8-20, 11/16-24 Specifications 175
Triax C Specifications 176
Triax BNC Specifications 177
Triax TNC Specifications 178
Triax BNC, 180˚ Polarity 179
Triax-C Bayonet Lock 180
Triax threaded 7/8-20, 11/16-24 181-182
Triax TNC threaded 7/16-28 183
173
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Triax
Triax Amphenol®
Specifications
174
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MECHANICAL
Mating Triax: 7/8-20 or
11/16-24 threaded
coupling. Triax-C and
Triax-BNC: Bayonet lock
Triax-TNC: 7/16-28
threaded coupling
Cable affixment Screw thread-nut and
two braid clamps
MATERIAL
Contacts Male: brass
Female & Outer
beryllium copper.
Silver plated.
Other metal parts Brass:
ASTROplate®finish
Insulators TFE or copolymer of
styrene
Clamp gaskets Silicone rubber or
synthetic rubber
ENVIRONMENTAL
Temperature range TFE
- 65°C to +165°C
Copolymer of Styrene:
- 55°C to +85°C
Weatherproof except as noted, all Triax
are weatherproof
NOTE: These characteristics are typical and may not
apply to all connectors.
ELECTRICAL
Impedance Non-constant (can be
used with 50, 75 and 93
ohm triaxial cables)
Frequency range 7/8-20 &11/16-24 triax
300 MHZ
Triax-C. Triax BNC
Triax-TNC: 0-500 MHz
Voltage 5000 V peak with
TFE insulators
1900 V peak with
styrene insulators
Triax Amphenol®
7/8-20, 11/16-24 Specifications
175
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Triax
7/8-20 PLUG 7/8-20 JACK
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
A .119 .121 3.02 3.07
B .286 .290 7.26 7.37
C .431 .435 10.95 11.05
D 1.029 1.035 26.14 26.29
E 0 .040 0 1.02
F .299 .329 7.59 8.36
G .335 .365 8.51 9.27
11/16-24 PLUG 11/16-24 JACK
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
A .119 .121 3.02 3.07
B .411 .414 10.44 10.52
C .496 .499 12.60 12.67
D .625 .627 15.82 15.93
E .269 .299 6.83 7.59
F .280 .310 7.11 7.87
G .383 .413 9.73 10.49
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
A .082 .084 2.08 2.13
B .189 .199 4.80 5.05
C .328 .338 8.33 8.59
D .807 .817 20.50 20.75
E .008 .042 0.20 1.07
F .198 .228 5.08 5.79
G .359 .389 9.12 9.88
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
A .082 .084 2.08 2.13
B .182 .186 4.22 4.72
C .330 .335 8.38 8.51
D .430 .433 10.92 11.00
E .182 .212 4.62 5.38
F .249 .279 6.32 7.09
G .442 .472 11.23 11.99
Triax Amphenol®
C Specifications
176
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Notes:
1. Dimensions are in inches.
2. Metric equivalents are given for general information only and are based upon 1.00 inch = 25.4mm
3. Flared to meet gage test.
4. Flat or radius
5. A concave depression .100 (2.54mm) wide by .005 (.13mm) deep between studs is permissible.
6. Metric equivalents are in parentheses.
PLUG JACK
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
A — .085 — 2.16
B .208 .250 5.28 6.35
C .003 .021 .08 .53
D .001 .031 .03 .79
E .001 .043 .03 1.09
F .001 .055 .03 1.40
G — .186 — 4.72
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
A .332 .338 9.43 8.59
B .001 — .03 —
C .186 .208 4.72 5.28
D .001 .013 .03 .33
E .155 .201 3.94 5.11
F .001 .039 .03 .99
Triax Amphenol®
BNC Specifications
177
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Triax
PLUG JACK
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
C — See Note 1 — —
D— — — —
F .213 .242 5.41 6.15
G .001 — .03 —
H .007 .033 .18 .84
J .008 .042 .20 1.07
R.213— 5.41—
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
AA .206 .213 5.23 5.41
J .195 .199 4.95 5.05
R .378 .382 9.60 9.70
S .001 — .03 —
W .187 .213 4.75 5.41
Y — .213 — 5.41
Z .165 .203 4.19 5.16
D
NOTE 1: Flared to meet mating characteristic test.
Triax Amphenol®
TNC Specifications
178
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PLUG JACK
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
C .172 .178 4.37 4.52
F .213 .242 5.41 6.15
G .001 — .03 —
H .007 .033 .18 .84
J .008 .042 .20 1.07
K.213— 5.41—
INCHES MILLIMETERS
LTR MIN MAX MIN MAX
F .117 .122 2.97 3.10
J .195 .199 4.95 5.05
S .001 — .03 —
W .187 .213 4.75 5.41
Y — .213 — .41
Z .165 .263 4.19 5.16
AA .203 .213 5.23 5.41
Triax Amphenol®
BNC, 180˚ Polarity
179
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Triax
Fig. 1
Plug
31-4774-3
31-2743-11 Panel Receptacle
31-2676-1
Fig. 2
PLUGS - MALE CONTACTS
Cable Config Term Construction MTG CAI Plt. Ins. Amphenol Fig
a b c Dia Hole Number
Plug two braid Mates with two 1.37 0.562 0.298 — C12 P33 D1 31-4774-3 1
clamp bayonet studs180˚ (34.9) (14.3) (7.6)
Plug two braid Mates with two 1.37 0.562 0.257 — C13 P15 D1 31-2743-11 1
clamp bayonet studs180˚ (34.9) (14.3) (6.5)
RG-307A/U
75ΩTriax
50ΩTriax: Times
TRF-58, Belden
9222, 72ΩTriax
Amphenol 621-106
RECEPTACLES
Config Term Construction MTG CAI Plt. Ins. Amphenol Fig
In. (mm) a b c Dia Hole Number
Panel Receptacle Solder cup & ground tab Two bayonet studs 1.08 .687 .712 L — P33 D1
31-2676-1 2
180˚ apart (27.4) (17.5) (18.1)
●accommodates cable diameter
L
.453(11.5)
.500(12.7)
.125(3.2) dia. 4 holes
Triax Amphenol®
C Bayonet Lock
180
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Fig. 1
Plug
82-3881-2
82-3880-1 Panel Receptacle
82-3907-1
Fig. 2
PLUGS - MALE CONTACTS
Cable Config Term MTG CAI Plt. Ins. Amphenol Fig
a b c Dia Notes Hole Number
Plug two braid clamps 2.06 0.79 0.298 — C23 P33 D1 82-3881-2 1
(52.5) (19.1) (7.6)
Plug two braid clamps 2.06 0.79 0.34 — C23 P33 D1 82-3880-1 1
(52.5) (19.1) (8.6)
11 Type
59 Type
RECEPTACLES - FEMALE CONTACTS
Cable Config Term Construction MTG CAI Plt. Ins. Amphenol Fig
Notes a b c Dia Hole Number
Panel Spade Lug
Gasketed 1.22
1.00 .750 P — P33 D1
82-3907-1 2
Receptacle & Ground Tab (30.9) (25.4) (19.1)
—
●accommodates cable diameter
Triax Amphenol®
Threaded, 7/8-20 and 11/16-24
181
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Triax
Fig. 1
Fig. 3
Straight Plug
53250, 53175
53250-1000
53150, 53100
Bulkhead Receptacles
34450, 34475
Fig. 2
STRAIGHT PLUGS
Triax Mating MTG Amphenol
Cable Threads a b c e f Hole CAI PLT Ins. Number Fig
8 Type 7/8-20 2.05 (52.0) 1.00 (25.4) .505 (12.8) — — — C15 P1 D1/D22 53250 1
11 Type 7/8-20 2.05 (52.0) 1.00 (25.4) .475 (12.1) — — — C15 P1 D1/D22 53175 1
Coax RG-12 A/U 7/8-20 2.56 (65.1) 1.00 (25.4) .484 (12.3) — — — C15 P1 D1/D22 53250-1000 1
58A Type 11/16-24 1.66 (42.1) .781 (19.8) .296 (7.5) — — — C15 P1 D1/D22 53150 1
59 11/16-24 1.66 (42.1) .781 (19.8) .332 (8.4) — — — C15 P1 D1/D22 53100 1
Dims. Inches (mm)
STRAIGHT JACKS
Triax Mating MTG Amphenol
Cable Threads a b c e f Hole CAI PLT Ins. Number Fig
11 Type 7/8-20 2.00 (50.8) 1.00 (25.4) .475 (12.1) — — — C15 P1 D6 52975 2
59 11/16-24 1.75 (44.5) .750 (19.1) .332 (8.4) — — — C15 P1 D1 34400 2
Dims. Inches (mm)
BULKHEAD RECEPTACLES
Triax Mating MTG Amphenol
Cable Threads a b c e f Hole CAI PLT Ins. Number Fig
— 11/16-24 1.28 (32.5) 1.00 (25.4) — .156 (4.0) — Y — P1 D1 34450 3
— 7/8-20 1.28 (32.5) 1.25 (31.8) — .156 (4.0) — Z — P1 D1 34475 3
Dims. Inches (mm)
CB
B
A
A
A
B
E
Max. Panel
Thickness
C
Straight Jack
52975
34400
Triax Amphenol®
Threaded, 7/8-20 and 11/16-24
182
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Fig. 1
Bulkhead Adapters
53200
53225
Male Caps
34275
34300
Fig. 2
BULKHEAD ADAPTERS
Mating MTG Amphenol
Threads a b c d e f Hole PLT Ins. Number Fig
7/8-20 1.75 (44.5) 1.25 (31.8) — — .709 (18.0) — .875 (22.2) P1 D1 53200 1
11/16-24 1.75 (44.5) .937 (23.8) — — .709 (18.0) — .689 (17.5) P1 D1 53225 1
Dims. Inches (mm)
MALE CAPS
Mating MTG Amphenol
Threads a b c d e f Hole PLT Ins. Number Fig
7/8-20 .813 (20.6) 1.00 (25.4) .144 (3.66) — 5.00 (127) — — P3 — 34275 2
11/16-24 .781 (19.8) .813 (20.6) .144 (3.66) — 5.00 (127) — — P3 — 34300 2
Dims. Inches (mm)
BA
E
Max. Panel
Thickness
Triax Amphenol®
TNC Threaded, 7/16-28
183
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Triax
Fig. 1
Fig. 3
Plug
31-8357-3
31-8357-6
Bulkhead Adapter Jack to Jack
31-8356-2
Bulkhead Jack Receptacle
31-8359-1
Fig. 2
PLUGS - MALE CONTACTS
Triax MTG Amphenol
Cable Config. a b c e f Hole CAI PLT Ins. Number Fig
Raychem
9530-D-5117 Plug 1.43 (36.3) .625 (15.9) .177 (4.5) — — — C13 P15 D1 31-8357-3 1
Times
TBF-58 Plug 1.43 (36.3) .625 (15.9) .257 (6.5) — — — C13 P33 D1 31-8357-6 1
Dims. Inches (mm)
RECEPTACLES - FEMALE CONTACTS MTG Amphenol
Description Config. a b c e f Hole CAI PLT Ins. Number Fig
Bulkhead
Jack Receptacle Recep. 1.20 (30.5) .690 (17.5) .825 (21.0) .250 (6.4) — T — P33 D1 31-8359-1 2
Dims. Inches (mm)
ADAPTER MTG Amphenol
Description Config. a b c e f Hole CAI PLT Ins. Number Fig
Bulkhead
Jack to Jack Adapter 1.37 (34.8) .730 (18.5) .638 (16.2) .187 (4.7) .737 (1.87) T — — — 31-8356-2 3
Dims. Inches (mm)
●accommodates cable diameter
.505(12.8) dia.
.473(12.9)
T
.505(12.8) dia.
.473(12.9)
T
