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Connectors
Introduction
An Electrical Connector is a device that forms the interface between the Electrical Feedthrough and its attached wiring.

Electrical Connector are an essential accessory for the user of electrical feedthrough as power must be transmitted between the application within the vacuum and the external or air-side instrumentation.

ISI offers a wide variety of Electrical Connectors for service in air or vacuum environments. Most connectors featured in this section are either included or used with the standard electrical feedthroughs in this catalog.

 Connector - Group
Circular 3-7 Pins
3, 5 and 7 pin Circular Connectors are not industry standard connectors. These connectors have been developed by ISI for applications requiring moderate pin density while maintaining relatively small package size. They are screw type connectors which offer the dependability of a threaded coupling. Standard dielectric material for these circular connectors is PVC. They are fitted with female socket receptacles that mate with .032" diameter pins.
 For complete list of parts, general specifications & wiring instructions click here
MS Circular Connectors /  2 to 35 Pins
The MS prefix in a connector part  number indicates an approved connector under the current military specification MIL-C-5015. MS-3106A are solid shell straight plug threaded connectors with polarizing keyways; all are female
socket type suitable for connecting with male pin type receptacles.
Standard dielectric materials for these MS connectors is Diallyl Phthalate; this resin is dimensionally stable, has high arc resistance and high insulation resistance under both humidity and thermal stress. Contacts are silver plated and have pretinned solder pockets.

 For complete list of parts, general specifications & wiring instructions click here
MS Circular Connectors /  4 to 35 Pins
Although these connectors do not carry the MS prefix, they are of the MS type. Other than the alumina ceramic dielectric, these connectors meet standard specifications
for MIL-C-5015 connectors. They are solid shell straight
plug threaded connectors with polarizing keyways. The female socket contacts are Alumel, a  high Nickel alloy suitable for service in air or vacuum and bakeable to 350°C. The metal shell components are Nickel plated Aluminum
with low vapor pressure characteristics, unlike standard MS Circular Connectors which are Cadmium plated and not suitable for UHV.


For complete list of parts, general specifications & wiring instructions click here
Circular Connectors /  7 Pins / 12kV
High voltage MS style circular connectors are designed for use with ISI's 12kV multipin feedthroughs and high voltage
cables detailed on pages 19 and 229 of this catalog.
Connector shell components are constructed of 6016-T6 aluminum alloy and are electroless nickel plated per MIL-C-26074.
High voltage insulation is provided by a single piece, molded silicone rubber insert per ZZ-R-765.
Female socket contacts are made of commercial bronze and gold plated per MIL-C-4520
To insure proper electrical performance the connector wiring  instructions must be strictly adhered to.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / BNC
Bayonet Naval Connectors.
BNCs are the world's most popular 50 Ohm RF connectors. BNC connectors are miniature, light weight units designed to operate satisfactorily up to 11GHz. These
connectors typically yield low reflection up to 4 GHz on 50 Ohm cables. Their quick disconnect bayonet coupling is a key feature.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / MHV
Miniature High Voltage, MHV connectors are also known as high voltage BNCs but do not intermate with BNC connectors. They are designed for applications which must withstand a pulsed signal up to 5000 volts peak. MHV
connectors operate to 50 MHz with a non-constant impedance structure.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / SHV-5
Safe High Voltage 5kV connectors feature improved interface over the MHV series Connectors. The SHV-5 outer contact ground connection is maintained through the
entire center contact mating cycle. The center contacts are
recessed to prevent shock hazards when the connectors are unmated.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / SHV-10
Safe High Voltage 10kV, SHV-10 connectors feature a special high voltage interface, and are ideally suited for pulse applications. The outer contact ground connection is maintained through the entire center contact mating cycle. The center contacts are recessed to prevent shock hazards
when the connectors are unmated.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / Type-N
Type N connectors are medium size, weatherproof, threaded coupling units designed for use from DC to 11 GHz. VSWR is consistently low across this broad frequency range. They are impedance matched to 50 Ohm cables.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / SMA
SMA connectors are semi-precision, subminiature, high frequency connectors which offer reliable broadband performance DC to 12.4 GHz with low reflection and constant 50 Ohm impedance.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / SMB
SMB connectors feature quick connect and disconnect snap-on mating and are suitable for 50 ohm impedance structures.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / SHV-B
Safe High Voltage 7.5kV bakeable connector. These connectors are not industry standard coaxial connections,
but developed to meet the demands of process temperatures as high as 300°C. The difference between SHV-B and conventional connectors is the use of alumina
ceramic dielectric and crimp style contact connections.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / SHV-20
SHV-20 Safe High Voltage 20kV connectors feature special high voltage interfaces that are ideally suited for pulse applications. SHV-20 high voltage connectors
are designed for use where the normal operating voltage of standard coaxial connectors is inadequate. Note that SHV-20 connectors and feedthroughs replace the older SHV-15 products. SHV-20 connectors should not be mated with SHV-15 feedthroughs or vice versa.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / Triaxial
Triax connectors are used in applications where maximum RF shielding and minimum noise radiation are required. These Triax connectors are used with large diameter RG11A/U type triaxial cables.
 For complete list of parts, general specifications & wiring instructions click here.
Coaxial  / Microdot
Microdot coaxial connectors are designed to accept 50 Ohm miniature coaxial cables. This is a screw type connector which offers the dependability of a threaded
coupling. ISI offers these Microdot connectors pre-assembled with 10 FT of RG178B/U coaxial cable.
 For complete list of parts, general specifications & wiring instructions click here.
Thermocouple / Circular MS Style
Although these connectors do not carry the MS prefix, they are of the MS type. Other than the alumina ceramic dielectric, these connectors meet standard specifications for MIL-C-5015 connectors. They are solid shell, straight plug threaded connectors with polarizing keyways. The female socket contacts are matched to E, J or K type thermocouple materials suitable for service in air or vacuum and bakeable to 350°C. The metal shell components are Nickel plated Aluminum with low vapor pressure characteristics, unlike standard MS Circular Connectors which are Cadmium plated and not suitable for UHV. Due to polarity reversal, air side connectors cannot be used on  the vacuum side receptacle of a double ended feedthrough. Connectors are sold separately and specifically for air or vacuum service with unique part numbers for each.
 For complete list of parts, general specifications & wiring instructions click on the links below

Air Service to 125°C
Air Service to 350°C
Vacuum Service to 125°C
Thermocouple / Miniature
Miniature Thermocouple connectors are recommended for use with fine gauge thermocouple wires where standard size connectors are not suitable. These connectors are polarized female socket type connections. Polarization is achieved by the use of two socket sizes, eliminating the possibility of cross polarity.
 For complete list of parts, general specifications & wiring instructions click here
Miscellaneous
 For complete list of parts, general specifications click on the links below

High Voltage Protective Cover
TC-Crimp Push / 350°C Air & Vacuum Service
TC-Screw & Nut Sets / 450°C Air & Vacuum Service
Power For complete list of parts, general specifications & wiring instructions click on the links below

Power-Crimp
Power-Push-On
Power-Inline
Inline Clamp Connectors
Right-Angle Clamp Connectors
Powerboot High Voltage Silicone Cable
PowerBoot™ High Voltage Connectors are silicon rubber insulated with molded and pre-wired high voltage silicon cabling. Standard 8 foot cable lengths are available to accommodate most applications and custom cable lengths are available on request. These connectors are offered in 5kV to 20kVDC with current ratings up to 70 Amps. They are specifically designed to be used with ISI
PowerBoot™ Feedthroughs located in Section 4.7
 		 For complete list of parts, general specifications click on the links below

5kV PowerBoot™ .094" Pin diameter
20kV PowerBoot™ .094" Pin diameter
15kV PowerBoot™ .250" Pin Diameter
INTENDED OPERATING CONDITIONS
Electrical ratings are determined by various factors, including dielectric strength, geometry and system operating pressure. Please note that all ISI catalog products are electrically rated for operation with one side in dry atmospheric conditions and the other side in a vacuum environment with a maximum system
pressure of 1 x 10-4 Torr. We advise that users make allowances for deviations from stated operating parameters and take adequate safety precautions when feedthroughs are operated at high voltages or high currents.