Keithley Instruments
28775 Aurora Road
Cleveland, Ohio 44139
1-800-833-9200
tek.com/keithley
Model SHV-CA-553
High-Voltage Triaxial to SHV Cable Information
PA-1054 Rev. C May 2021
*PPA-1054C*
1
Description
The Model SHV-CA-553 is a high-voltage triaxial cable assembly. This cable assembly is terminated on one
end with a female safe high-voltage (SHV) connector. The other end is terminated with a male high-voltage
(HV) triaxial connector.
Figure 1: Model SHV-CA-553
You can order the cable in three different lengths (see table below).
Model number
Cable length
SHV-CA-553-1
3.3 ft (1.0 m)
SHV-CA-553-2
6.6 ft (2.0 m)
SHV-CA-553-3
9.8 ft (3.0 m)
The male high-voltage (HV) triaxial connector mates with rear-panel connectors of the Keithley Model 2657A
High Power System SourceMeter SMU Instrument. It also mates with the HV-CA-571-3 High-Voltage Triaxial
Panel-Mount Cable and with the HV-CS-1613 High-Voltage Triaxial Feedthrough Connector.
The inner shield of the HV triaxial is not connected to the SHV end. This may impact source and measurement
settling time and low-current measurement performance.
On the Model 2657A, be aware that when you connect to the SLO / LO triaxial terminal on the rear
panel, the LO terminal is the inner shield. Therefore, the LO terminal is not connected to the SHV
end of the Model SHV-CA-553 cable assembly. Use the LO triaxial terminal on the rear panel (not
SLO / LO) of the Model 2657A to access Output LO.
Model SHV-CA-553 High-Voltage Triaxial to SHV Cable Information
2 PA-1054 Rev. C May 2021
If you need to convert from a safe high-voltage (SHV) connector to another connector type,
be sure to only adapt SHV connectors to connectors that are rated to the maximum possible
voltage in your test setup. Using adapters in your setup that are not rated to the maximum
possible voltage may result in serious injury or death due to electric shock.
Electrical characteristics
▪ Rated voltage: 3300 V
▪ Rated amperage: 2.0 A
▪ Leakage current:
▪ Center to guard: < 150 x 10
-12
A at 3000 V (see NOTE below)
▪ Guard to shield: < 150 x 10-9 A at 3000 V
▪ Full continuity:
▪ Center <--> Center
▪ Guard <--> Open (SHV end)
▪ Shield <--> Shield
▪ Dielectric breakdown voltage:
▪ Center/guard to shield: 5250 V
With the Model 2657A System SourceMeter Instrument, the voltage between the Guard and HI
(inner shield and center conductor) will typically be less than 1 V under steady-state conditions. This
results in much lower leakage current between the inner shield of the cable and the center
conductor.
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