Keithley Instruments
Model TRX-1100V-CONN
071368600 / September 2019
1
28775 Aurora Road
Cleveland, Ohio 44139
1-800-935-5595
tek.com/keithley
3-Slot Male HV Triaxial Cable Connector Instructions
Description
The Keithley Instruments TRX-1100V-CONN is a 3-slot male voltage triaxial cable connector rated for 1100 V.
This connector can be used in applications that use the Keithley Instruments Model 2470 High Voltage
SourceMeter
combined with DC measurement capability and broad testing flexibility.
®
Instrument. It can be used for instrument test i ng that requires high voltage and high throughput
Figure 1: TRX-1100V-CONN
This connector is commonly mated to the Keithley Instruments TRX-1100V-PCBCONN High-Voltage Female
PCB Connector. It is intended for use with the Keithley Instruments SC-22 Triaxial Cable, which is an
unterminated cable. Instructions for insta ll i ng the TRX-1100V-CONN onto a SC-22 cable are provided i n this
document. The connector and cable assembly is shown in the following figure.
Figure 2: Fully assembled TRX-1100V-CONN
*P071368600*
Model TRX-1100V-CONN 3-Slot Male HV Triaxial Cable Connector Instructions
This triaxial connector is shipped with purple heat-s
installed on the SC-22 cable. The purple marking indicates that t he cable and connector assembly is rated for
up to 1500 V and conforms to IEC 61010-1 and IEC 61010-2-30 safety standards. The purple marking also
indicates that they can be attached to other connectors with purple markings, such as the FORCE and
SENSE connectors on the Model 2470 rear panel, shown in the following figure.
Figure 3: Model 2470 rear-panel purple connections
hrink tubing. As shown in the previous figure, it should be
Do not attach male triaxial connectors without purple markings to female connectors with
purple markings. Triaxial connectors without purple markings are not rated for high voltage.
Mating incompatible connectors can cause damage to the connectors.
Dimensions
Figure 4: TRX-1100V-CONN connector dimensions
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Model TRX-1100V-CONN 3-Slot Male HV Triaxial Cable Connector Instructions
Triaxial cable connector electrical characteristics
Characteristic impedance:
Nonconstant
Insulation resistance:
4
x 10 Ω
Voltage rating:
15
minimum
Center contact to intermediate 500 V
Intermediate contact to outer body 1000 V
Dielectric withstanding voltage:
Center contact to intermediate 1500 V
Intermediate contact to outer body 2500 V
Operating environment: 0 °C to 50 °C up to 70% relative humidity at ≤ 35 °C
RMS
RMS
RMS
RMS
SC-22 triaxial cable construction
Figure 5: SC-22 triaxial cable dimensions
SC-22 electrical characteristics
Characteristic impedance:
40 Ω nominal center conductor to inner shield
15.3 Ω nominal shield to shield
Center conductor resistance:
< 0.1 Ω per 0.3048 cm (1 foot)
Voltage breakdown:
2655 volt DC minimum between shields
Flexural noise:
Peak-to-peak ≤ 7 mV
Leakage resistance (3.048 m [3 ft] cable length):
Center conductor to inner shield > 1.2 x 10
Inner shield to outer shield > 1.6 x 10
071368600 / September 2019 3
11
Ω at 1200 V
11
Ω at 1600 V
Model TRX-1100V-CONN 3-Slot Male HV Triaxial Cable Connector Instructions
TRX-1100V-CONN assembly instructions
The TRX-1100V-CONN needs to be assembled before use. The following figures and instructions guide you
through this process. See the following figure and use it to help guide you step-by-step with the assembly .
Note that you will have to prepare the SC-22 triaxial cable in order to insert it in the TRX-1100V-CONN. The
internal triaxial cable wire must be stripped to the proper dimensions to ensure the correct insertion depth i n the
connector. Excessive exposed conductor length presents electrical shock hazards to equipm ent and personnel.
If the strip length is too short, improper terminat i on will result due to the lack of electrical conductive surfac e
area making contact with the terminal conductor.
Excessive exposed conductor length can result in electrical shock hazards to equipmen t and
personnel. To prevent electrical shock that could cause injury or death, make sure the
stripped wire is the correct length.
Figure 6: TRX-1100V-CONN exploded view
Equipment needed for assembly:
A cable ringing tool or wire stripper
Cleaning solvent for removal of exposed graphite lu bricant
A torque wrench
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