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SMB Feedthroughs - Weldable, Single-Ended

These instrumentation feedthroughs have SMB coaxial connectors on the air-side. The alumina insulated 416 stainless steel conductor is rated at 500V with a grounded shield and at 1000V with a floating shield, at a maximum current of 0.5A. An air-side SMB cable plug is included with the feedthrough but vacuum-side connectors are not. Feedthroughs of this type are designed for welding into a suitably prepared through-hole in a flange.

Specifications Table

Conductor MaterialStainless Steel (type 416)
Insulator MaterialAlumina
CableRG-174U
ConnectionPush Clip
Vacuum ApplicationHV or UHV
Temperature Range
(for metal seals)
Weld Adapter, CF: 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 floating shields)
Shield-Ground: 1,000V DC
Shield-Pin: 500V DC
Max. Voltage
(for grounded shields)
500V DC
Max. Current0.5A

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

Dimensional Drawings

Contact Us
To speak with someone directly, please call 1-412-387-9200 or email international@lesker.com.
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
Atm Side
Termination
Vac Side
Termination
Shield Flange/
Mounting
Weld Lip
Diameter
Weld Lip
Thickness
Weld Lip
Material
Insulator
Material
Dim
A
Dim
B
PartNo Price Add
Item
VacuCADSM
Figure Voltage
(V)
Current
(A)
# of
Conductors
Conductor
Material
Conductor
Diameter
Atm Side
Termination
Vac Side
Termination
Shield Flange/
Mounting
Weld Lip
Diameter
Weld Lip
Thickness
Weld Lip
Material
Insulator
Material
Dim
A
Dim
B
PartNo Price Add
Item
VacuCADSM
1 375 1.4 1 Stainless Steel 0.032 SMB Pin Grounded Weld 0.187 0.020 Kovar Alumina 0.57 0.25
IFTDG012001
$140.00
(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
Copper, 12" long ( 0.032" diameter)
Bare Wire
1 piece
FTAWCU032
$2.60
Insulators for 0.056" diameter wire (1ft. long)
Ceramic Beads
110 pieces
FTACERB056
$44.60
For SMB style Instrument F/Ts (500V max)
Coaxial Connector
1 set
FTASMB
$42.80
Be/Cu connector for 0.041" wire (10A max)
Inline Barrel Connector
10 pieces
FTAIBC041
$55.40

 

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