SMA - Single Ended, Grounded Shield Feedthrough on a 1.33" CF Flange
SMA - Single Ended, Grounded Shield Coaxial Feedthrough on a 1.33" CF Flange.
SMA - Single Ended, Grounded Shield Coaxial Feedthrough on a 1.33" CF Flange.
SMA - Single Ended, Grounded Shield Coaxial Feedthrough on a 2.75" CF Flange.
SMA - Single Ended, Grounded Shield Coaxial Feedthrough x 2 on a 2.75" CF Flange.
SMA - Single Ended, Grounded Shield Coaxial Feedthrough x 3 on a 2.75" CF Flange.
SMA - Single Ended, Grounded Shield Coaxial Feedthrough x 4 on a 2.75" CF Flange.
SMA - Single Ended, Grounded Shield Coaxial Feedthrough x 5 on a 2.75" CF Flange.
SMA - Double Ended, Grounded Shield Coaxial Feedthrough on a 1.33" CF Flange.
SMA - Double Ended, Grounded Shield Coaxial Feedthrough on a 2.75" CF Flange.
A 'Subminiature Type-A' coaxial connector, referred to as the SMA coaxial interface, is commonly used in conjunction with high-frequency, low noise 50-ohm instrumentation signal lines. SMA coaxial feedthroughs are constructed in both grounded and floating shield configurations. Floating shield types provide two concentric conductor paths: an outer metal conductor tube (shield) concentric with, and enclosing, a cylindrical center conductor pin. Both paths are electrically isolated from each other and a mounting flange. Grounded shield SMAs provide only one path that's electrically isolated from the flange, where grounded shield and flange are electrically common. Vacuum side of single-ended grounded and floating SMA feedthroughs have a 0.094 inch (2.4-mm) diameter conductor pin that mates with grounded or floating AccuFast™ connectors. Vacuum compatible cable assemblies are fitted with Kapton® insulated 26 AWG, 50-ohm coaxial cable, with either Accufast™ connectors or gold-plated SMA connectors.
Warning — SMAs, with .250-36 thread and .035/.037 pin diameter, are often mistaken for Microdot S-93, connectors with .250-32 threads and .030/.033 pins. To avoid possible damage to one or both connector interfaces, these connectors should never be cross-mated. Compare Microdot ® and SMA differences below...
Electrical | |
Voltage 1, Maximum | |
Grounded Shield | 700 VDC |
Floating Shield | 700 VDC |
Current, Max @ 20°C | 1 A |
Impedance2, Nominal | 50 Ohms |
Frequency2, Nominal | 6 GHz |
Material | |
Shell | 304 Ss |
Pin / Conductor | 304 Ss |
Insulation, Ceramic | Alumina |
Connector, Vacuum 3 | |
AccuFast™ | PEEK / Ss |
SMA (Au plated) | PEEK / Brass |
Connector, Air | Teflon® |
Cable Insulation (Type F Film) | Kapton® |
Vacuum Range | |
UHV, Ultrahigh vacuum | 1x10E-10 Torr |
HV, High vacuum | 1x10E-8 Torr |
Temperature Range4 | |
Feedthrough, Single Ended | 250°C |
Flange, Conflat® | 450°C |
Flange, ISO | 150°C |
Connector / Cable, Air | 165°C |
Connector / Cable, UHV | 250°C |
Thermal Gradient, Maximum | 25°C/minute |
Notes |