31-218 (UG-491A/U) AMPHENOL RF, 31-218 (UG-491A/U) Datasheet
31-218 (UG-491A/U)
Manufacturer Part Number
31-218 (UG-491A/U)
Description
connector, rf coaxial, bnc in-series adapter, straight plug to plug, 50 ohm
Manufacturer
AMPHENOL RF
Type
Plug-Plugr
Datasheet
1.31-219_UG-914U.pdf
(1 pages)
Specifications of 31-218 (UG-491A/U)
Angle
Straight
Application
True MIL
Contact Plating
Silver
Finish, Housing
Nickel
Impedance
50 Ohms
Length
1.25 in.
Material, Dielectric
TFE/Styrene
Material, Housing
Brass
Mating Type
Bayonet
Primary Type
BNC
Voltage, Rating
500 V
Lead Free Status / Rohs Status
RoHS Compliant part
BNC 50 ohm
Adapters
BNC ADAPTERS - STRAIGHT, ANGLE, PANEL MOUNT
Amphenol Corporation Tel: 800-627-7100
* recognized under the component program of U.L., Inc.
Fig. 1
Fig. 3
Straight
Straight
Angle
Panel, 3-56 Tapped
Flange Holes
Description
BNC Straight Adapters - Jack/Jack
BNC Angle Adapters - Jack/Plug
b
Jack-Jack
Plug-Plug
Jack-Plug
Jack-Jack
b
a
31-219-RFX
31-9-RFX
31-219
a
31-9
1.28(32.5)
1.25(31.8)
1.06(27.0)
1.06(27.0)
1.09(27.6)
1.28(32.5)
a
c
Dimensions, inches (millimeters)
.437(11.1)
.562(14.3)
.562(14.3)
.562(14.3)
.594(15.1)
.688(17.5)
L distributor stocked ‡ IBM 6028521
b
1.02(25.8)
1.02(25.8)
1.02(25.8)
.691(17.6)
—
—
c
119
Fig. 2
Fig. 4
.250(6.4)
—
—
—
—
—
e
BNC Straight Adapters - Plug/Plug
BNC Panel Adapter - Jack/Jack
P1
P7
P1
P7
P1
P1
P34
P1
Plt.
c
a
Notes
D1
D26
D1
D1
D1
D1
D1
D1
Ins.
b
31-218-RFX
31-218
Mtg.
Hole
47000
—
—
—
—
—
—
—
E
a
e max panel
UG-914/U
UG-491A/U
UG-306/U
M55339/14-00306
Number
Military
b square
.385(9.8)
.109(2.8)
dia. 4 holes
—
—
—
—
Amphenol
.500(12.7)
31-219*
31-219-RFX
31-218*
31-218-RFX
31-9*‡
31-9-RFX
31-4561
47000*
www.amphenolrf.com
Amphenol
Number
.094(10.3)
.453(11.5)
E
Fig .
1
1
2
2
3
3
3
4
®
L
L
L
L
L
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