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SMA50/SMAD50 Coaxial Feedthrough

Threaded SMA coaxial feedthrough with 50 Ω impedance matching and grounded shielding. Available in single-ended SMA50 or double-ended SMAD50 configurations. Single-ended version uses a 1.8 mm conductor, while double-ended version uses SMA connectors at both ends. Rated at 1000 VDC max, 3 A. Frequency range: up to 6.5 GHz. Operates from -200°C to 300°C under UHV (<1×10⁻¹⁰ mbar). CF16 flanges support 1 unit; CF40 flanges accommodate up to 4 units. Custom flanges and weldable versions available. Optional vacuum-side and air-side connectors and cables available.

Features

 · Threaded SMA coaxial feedthrough with 50Ω impedance matching, supporting frequencies up to 6.5 GHz.

 · Available in single-ended SMA50 or double-ended SMAD50 configurations.

 · One unit fits on a CF16 flange; up to 4 units on a CF40 flange.

 · Multiple feedthroughs can be welded onto larger flanges.

 · Optional connectors and cables available for both ends.

 · Custom flange and feedthrough configurations available upon request.

Parameters

Specification

Shielding Type

Grounded Shielding

Impedance Matching

50Ω

Conductor Diameter

Single-ended: 1.8 mm
Double-ended: SMA Interface

Maximum Voltage

1000V DC

Maximum Current

3A

Frequency Range

AC to 6.5 GHz

Temperature Range

-200 °C ~ 300 °C

Ultimate Vacuum

< 1×10⁻¹⁰ mbar

Leak Rate

< 1×10⁻¹² Pa·m³/s (He)

Dimensions

SMA50/SMAD50 Coaxial Feedthrough

CF Flange Selection Table

FlangeNumber of FeedthroughsSingle-Ended SMA50Double-Ended SMAD50
CF161MT140-SMA50-C16MT140-SMAD50-C16
CF401MT140-SMA50-C40MT140-SMAD50-C40
CF402MT140-SMA50-C40-2MT140-SMAD50-C40-2
CF403MT140-SMA50-C40-3MT140-SMAD50-C40-3
CF404MT140-SMA50-C40-4MT140-SMAD50-C40-4

KF Flange Selection Table

FlangeNumber of FeedthroughsSingle-Ended SMA50Double-Ended SMAD50
KF161MT140-SMA50-K16MT140-SMAD50-K16
KF401MT140-SMA50-K40MT140-SMAD50-K40
KF402MT140-SMA50-K40-2MT140-SMAD50-K40-2
KF403MT140-SMA50-K40-3MT140-SMAD50-K40-3
KF404MT140-SMA50-K40-4MT140-SMAD50-K40-4

Note: For other flange and feedthrough combinations, please contact us.


Weldable Version Selection Table

Number of FeedthroughsSingle-Ended SMA50Double-Ended SMAD50
1MT140-SMA50-WVMT140-SMAD50-WV

Related Accessories

AccessorySMA50 Coaxial FeedthroughSMAD50 Coaxial Feedthrough
Vacuum-side ConnectorMT160-PISC-1.8
MT145-CON-SSMA-VAC
MT145-CON-SMA-VAC
Vacuum CableMT165-PTFE50 coaxial cable
MT165-KAP50 coaxial cable
MT165-KAPM series
Vacuum-side Connector + Vacuum CableMT145-SSMA-FX-PTFE50-500-VACMT145-SMA-MX-PTFE50-500-VAC
Air-side ConnectorMT145-CON-SMA-AIR
Air-side Connector + CableMT145-SMA-MX-500-AIR


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