Type HN Feedthroughs - Weldable, Single-Ended

These instrumentation feedthroughs have Type HN coaxial connectors on the air-side. The alumina insulated 70/30 copper nickel conductor is rated for 7kV and a maximum current of 7A. Air-side Type HN cable plugs are 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 Material	70/30 Copper Nickel
Insulator Material	Alumina
Cable	RG-59
Connection	Screw Thread
Vacuum Application	HV or UHV
Temperature Range (for metal seals)	Weld Adapter, CF: -200°C to +450°C
Temperature Range (for elastomer seals)	KF, O-Ring, NPT: To +150°C
Temperature Max. Ramp Rate	25°C/minute
Temperature Range (cable connectors)	Cable Connectors: -55°C to +165°C
Max. Voltage (for grounded shields)	7kV DC
Max. Current	7A

Dimensional Drawings

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Ordering Table

Voltage
(kV)

Current
(A)

# of
Conductors

Conductor
Material

Conductor
Diameter

Atm Side
Termination

Vac Side
Termination

Shield

Impedance

Flange/
Mounting

Weld Lip
Diameter

Weld Lip
Thickness

Weld Lip
Material

Insulator
Material

Dim
A

Dim
B

Dim
C

Dim
D

PartNo

Price

Add
Item

VacuCAD^SM

Voltage
(kV)

Current
(A)

# of
Conductors

Conductor
Material

Conductor
Diameter

Atm Side
Termination

Vac Side
Termination

Shield

Impedance

Flange/
Mounting

Weld Lip
Diameter

Weld Lip
Thickness

Weld Lip
Material

Insulator
Material

Dim
A

Dim
B

Dim
C

Dim
D

PartNo

Price

Add
Item

VacuCAD^SM

70/30 Copper Nickel

0.191

Type HN

Grounded

50 Ohm

Weld

0.747

0.030

Stainless Steel

Alumina

1.26

0.43

0.50

0.35

IFTHG013051

$588.00

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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.