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Feedthroughs & Viewports > Electrical Feedthroughs > Coaxial Feedthroughs > SMA Series Feedthroughs

SMA Feedthroughs - KF Flange, Double-Ended

These instrumentation feedthroughs have SMA coaxial connectors on the air-side and vacuum-side. Both are matched 50 ohms impedance. The alumina insulated stainless steel conductor is rated at 700V at a maximum current of 1A. An air-side SMA cable plug is included with the feedthrough but a vacuum-side plug is not. The KF flanges are sealed with centering and O-ring combination (not included) making them high vacuum compatible.

Specifications Table

Impedance50 ohms
Conductor MaterialStainless Steel
Insulator MaterialAlumina
CableRG-58U
ConnectionScrew Thread
Vacuum ApplicationHV or UHV
Temperature Range
(for metal seals)
Weld Adapter, CF: -270°C to +450°C
Temperature Range
(for elastomer seals)
KF, O-Ring, NPT: To +150°C
Temperature Max. Ramp Rate25°C/minute
Temperature Range
(cable connectors)
Cable Connectors: -65°C to +165°C
Max. Voltage
(for grounded shields)
700V DC
Max. Current1A

Diagrams & Instructions Please click HERE to view Feedthrough cabling diagrams & instructions.

Dimensional Drawings

Got VacuCADSM?
VacuCAD is a free library containing thousands of 2D CAD drawings (in DXF format) and 3D Models (in STP format) for many of our standard vacuum components and chambers. Please Log in

Ordering Table


Figure Voltage
(V)
Current
(A)
# of
Conductors
Conductor
Material
Conductor
Diameter
Flange/
Mounting
Insulator
Material
Number of Pins
or Tubes
Shield Impedance Air
Side
Vac
Side
Frequency Dim
A
Dim
B
Dim
C
PartNo Price Add
Item
VacuCADSM
Figure Voltage
(V)
Current
(A)
# of
Conductors
Conductor
Material
Conductor
Diameter
Flange/
Mounting
Insulator
Material
Number of Pins
or Tubes
Shield Impedance Air
Side
Vac
Side
Frequency Dim
A
Dim
B
Dim
C
PartNo Price Add
Item
VacuCADSM
1 700 1 1 Stainless Steel 0.050 KF16 Alumina 1 Grounded 50 Ohm SMA SMA 8 0.74 0.82 0.40
IFDCG012018
$490.00
(please log in)
2 700 1 1 Stainless Steel 0.050 KF25 Alumina 1 Grounded 50 Ohm SMA SMA 8 0.63 0.92 0.40
IFDCG012018A
$495.00
(please log in)
3 700 1 1 Stainless Steel 0.050 KF40 Alumina 1 Grounded 50 Ohm SMA SMA 8 0.63 0.92 0.40
IFDCG012018B
$495.00
(please log in)

Note: The electrical and thermal ratings specified are of safe operating limits determined by various factors including material properties, mechanical design, and the intended operating environment. All electrical ratings are based on operation with one side in dry atmosphere and the other side in vacuum of less than 1 x 10-4 Torr. All VacuCAD files as well as any dimensions shown or listed in our ordering tables do not include manufacturing tolerances and are provided for reference only.

Feedthrough Selection Guide
Finding the right feedthrough has never been easier with our step by step Feedthrough Selection Guide. You can narrow down our feedthrough offering by simply choosing from a variety of different options suitable to your requirements. If you can't find the feedthrough you need or want a custom configuration, please email sales@lesker.com with your inquiry.

Accessories Table

Description Type Per Pkg PartNo Price Add
Item
Description Type Per Pkg PartNo Price Add
Item
For SMA style Instrument F/Ts (700V max)
Atm Side Coaxial Connector
1 set
FTASMAA
$47.40
12" long (50 ohm matched; SMA both sides)
Kapton Insulated Coax Cable
1 cable
FTAKCSM2CM12
P.O.R.
24" long (50 ohm matched; SMA both sides)
Kapton Insulated Coax Cable
1 cable
FTAKCSM2CM24
P.O.R.
12" long (50 ohm matched; SMA one side)
Kapton Insulated Coax Cable
1 cable
FTAKCSMACM12
P.O.R.
24" long (50 ohm matched; SMA one side)
Kapton Insulated Coax Cable
1 cable
FTAKCSMACM24
P.O.R.
12" long (50 ohm matched; SMA Female to Male in Vacuum Wire)
Kapton Insulated Coax Cable
1 cable
FTAKCSMFCM12
P.O.R.
24" long (50 ohm matched; SMA Female to Male in Vacuum Wire)
Kapton Insulated Coax Cable
1 cable
FTAKCSMFCM24
P.O.R.
For SMA style Instrument F/Ts (700V max)
Vac Side SMA Connector
1 set
FTASMAV
P.O.R.

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