BNC style connectors are miniature, light-weight, weatherproof interconnecting devices characterized by their two-stud, quick disconnect bayonet lock coupling arrangement.
Their design functions satisfactorily from DC to 11 GHz in static applications, or from DC to 4GHz in applications involving vibration. The connectors typically yield a low
VSWR (reflected signal) to 4GHz. Primary applications include radio telecommunications, broadcast equipment, medical equipment, computer, Precision Video, High
definition studio broadcast, video switching and test instrumentation where frequent coupling and de-coupling are necessary. Bomar’s BNCs are available in an extensive
variety of configurations and cable sizes and are impedance matched to either 50 ohm or 75 ohm.
MATERIALS
Connector Parts
Connector Body and Parts
Male Contact Pin
Commercial Grade
Outer Contact
Socket Contact
----------
Crimp Ferrule
Insulators, Standard Versions
----------
Rubber Gaskets
Plating
Brass
Brass
Zinc Alloy/Brass
Brass
Beryllium Copper
Phosphor Copper
Annealed Copper
Teflon
Delrin
Silicone Rubber
Nickel (Silver Optional)
QQ-B-750
QQ-C-530 / MIL-H-7199
CuBe2
QQ-C-576
L-P403 / BS4271
Grade B
ASTM-E1418PSI
MIL-G-45204
Material
Equivalent Standard
ISOCuZn38Pb2 Body Part
QQ-B-626
--------------
ELECTRICAL
Requirement
Impedance
Frequency Range
VSWR
RF Insertion Loss
RF Leakage
Test Voltage ( At Sea Level)
Working Voltage ( At Sea Level )
Insulation Resistance
Contact Resistance
50Ω
75Ω
0-4GHz
0-1 GHz
1.30 Max.
0.2 db Min. at 3 GHz
-55 db Min. at 3 GHz
1500V rms
500V rms
5000 Meg ohms Min.
3 Milli ohms Max.
MIL-C-39012
MIL-C-39012
MIL-C-39012
MIL-STD-202
MIL-STD-202
MIL-STD-202
MIL-C-39012
Performance
Test † Specification
------------
------------
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BNC Connectors
Mechanical & Environmental
Requirement
Durability
Shock
Vibration
Cable Retention (Cable Types)
Coupling Nut
Temperature Range
Moisture Resistance
Salt Spray
50 G
20 G from 80-2000 Hz
60 lbs. Minimum Pull Test
60 lbs. Maximum
Teflon: -55 to +199 C
Delrin: -40 to +85 C
Continuous Test
48 Hours
Performance
500 Insertions & Extractions Min.
Test † Specification
MIL-C-39012
MIL-STD-202
MIL-STD-202
MIL-C-39012
MIL-C-39012
------------
------------
MIL-STD-202
MIL-STD-202
†Products are made to conform to the Mil standard but are for commercial applications and are not QPL
FOR TECHNICAL SUPPORT: PHONE 973-347-4040 / FAX973-347-2111
Back to Index
1
-Page1-
-Page2-
3 Piece Crimp
BNC three piece crimp connectors feature semi-captive contacts that “click” into place assuring perfect installation. Each crimp pin has a
vent hole for optional soldering. Soldering is recommended for all stranded conductors 26 AWG or smaller.
Part Number
(Male)
310A205A
310A205A18
310A205F
310A205FS
310A205FV
310A205FV2
310A205FV3
310A204G
310A205G20
“A” Dim.
(I.D.)
.200 In.
.200 In.
.124 In.
.124 In.
.125 In.
.125 In.
.125 In.
.150 In.
.150 In.
Fig.
No.
Fig. 1
Fig. 1
Fig. 1
Fig. 1
Fig. 2
Fig. 2
Fig. 2
Fig. 1
Fig. 1
RG/U Cable
6, 21 AWG Center Conductor
6 CATV, 18 AWG Center Conductor
58A/U, 58C/U Stranded, 141, Thin PVC
58/U Solid Conductor
58/U Thin-Net Plenum
Mini 59, RGB Cable (23 AWG)
Mini 59, RGB Cable (26 AWG)
59, 62, 210
RG59 20 AWG Center Cond.
Fig.1
Fig.2
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BNC Connectors
310A205G23
310A205MV
310B205MV
310A205N
310A205P
310B205Q
310A204T
310A208W2
.150 In.
.125 In.
.125 In.
.090 In.
.125 In.
.205 In.
.150 In.
.103 In.
Fig. 1
Fig. 3
Fig. 3
Fig. 3
Fig. 1
Fig. 1
Fig. 2
Fig.1
Belden 8241
174, 178, 196, Mini RGB Cable 50
Ω
174, 178, 196, Mini RGB Cable 75
Ω
179, 187
223
Belden 8281 True 75 Ohms
59, 62, Plenum
Mini 59, RGB Cable (26 AWG)
Fig.3
Fig.4
Fig.5
Twist-On and 2 Piece Crimp
BNC Twist-On connectors are field installable and require no tooling other than a stripping tool for the cable preparation. The center
conductor is inserted into Bomar’s unique Posi-Con ™contact, as the connector is twisted onto the cable’s outer jacket.
BNC 2 Piece crimp connectors make use of a fully captivated pin. Just insert the center conductor into the connector body, slide the ferrule
over the braid, and apply a single hex-crimp to the ferrule. These connectors are easy to install and reliable and are recommended only for
the lower data transmission speeds.
Part
Number
Fig.
No.
Fig. 8
Fig. 8
Fig. 8
Fig. 8
Fig. 8
Fig. 8
Fig. 8
6, Thick net
58A/U Solid Cond, 141, Thin PVC
58/U Solid Cond. -.172"- .178 “
58/U Thin Plenum - .158" - .162"
Thin Plenum .150"
59, 62, 210 PVC
59, 62, 210 Plenum
58 Solid (PVC)
59, 62, 210 (PVC)
RG58 (PVC)
RG59, 62 (PVC)
RG/U Cable
Gender
310A405A Male
310A405F
Male
310A405F1 Male
310A405F2 Male
310A405F3 Male
310A405G Male
310A405T
320A405F
310X205F
Male
Fig.8A
Fig.8
Female Fig. 8A
Male
Fig. 6
Fig. 6
320A405G Female Fig. 8A
s
s
Fig.6
Fig.7
310X205G Male
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BNC Connectors
320X205F
Female Fig. 7
RG58 (PVC)
RG59, 62 (PVC)
320X205G Female Fig. 7
FOR TECHNICAL SUPPORT:
PHONE 973-347-4040 / FAX973-347-2111
Back to Index
2
-Page 2-
- Page 3 -
BNC Connectors
Standard Clamp
BNC standard clamp style is a simplified version of the original military clamp style. It is required that the contact be soldered to the center conductor of the
cable.
Part
Number
310A105A
310A105D
310A105F
310A105G
310A105M
320A105F*
320A105G*
Gender
Male
Fig. No.
9
9
9
9
9
10
10
11A
58, 58A, 58C, 141
59, 62, 210
174, 188, 316
58, 58A, 58C, 141
59, 62, 214
Figure 10
RG/U Cable
6
Figure 9
Male
Male
Male
Male
Female
Female
Specialty Broadcast Plugs
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BNC Connectors
Broadcast grade BNC connectors are perfectly matched to 75 ohm impedance’s. The superior plugs are for studio wiring and other broadcast uses. Solid
precision machined brass, not die-cast, hold up under the toughest conditions. Here, we are showing the eight most popular but there are many more versions
matched to the popular cable manufacturer’s part number.
Part Number
SBC1505A
SBC1694A
SBC1695A
SBC1855A
SBC7731A
SBC8218
SBC8241
SBC8281
Gender
Male
Male
Male
Male
Male
Male
Male
Male
1505A
1694A
1695A
1855A
7731A
8218
8218
8281
Belden Cable
s
s
s
s
s
"See our Broadcast Catalog on -line for information on HD and many other broadcast products"
Bulkhead Jacks
Versions are available for front mounting, (F/M) rear mounting, (R/M) crimp types, bulkhead mount grounded, or bulkhead mount, isolated. (Color-coded
available.) These jacks are held into the panel by a hex-nut and lock washer. All units feature nickel plated, brass bodies, and gold phosphor-bronze contacts
Part Number
321A245A
321A245F
321A245FV
321A245G
321A245M
321B245M*
321B245N*
326A515
326R515
326R515RD
326R515GN
Description
R/M Crimp, RG6
R/M Crimp, RG58 , Thin-net PVC
R/M Crimp, Thin-Net Plenum
R/M Crimp, RG59, 62, 210
R/M Crimp, RG174, 188, 196, 316
R/M Crimp, RG174, 188, 196, 316
R/M Crimp, RG179, 187
F/M Solder (Grounded)
F/M Solder (Isolated) White Bushing
F/M Solder (Isolated) Red Bushing
F/M Solder (Isolated) Green Bushing
Fig
No.
13
13
14
13
14
14
15
16
17
17
17
Hole ID
.500
.500
.500
.500
.500
.500
.500
.375
.375
.375
.375
Figure 13
Figure 14
s
s
s
s
Figure 15
Figure 16
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