Using 2657A for Double Pulse Test

For DPT, we are planning to provide the drain bus voltage by SMU 2657A. That 2657A is connected with 8010A with the <strong>HV-CA-554</strong> Triax cables. To use those cables in our DPT board's BNC input, we tried&#160;<b>237-BNC-TRX</b>&#160;from Keithley but unfortunately&#160;<b>it doesn't match with the HV-CA-554 cable</b>. Can you please suggest any&#160;<b>TRX to BNC adapter&#160;</b>that can match with these cables?

Hello,<br> The recommended cables and accessories for the 2657A can be found on the datasheet for the unit found below. Also, the cables and accessories that the HV-CA-554 can be used with can be found on the HV-CA-554 manual also provided below.<br> <font face="Calibri, sans-serif"><span style="font-size:11pt;">We only recommend HV Triax for these voltages. We do have Triax-BNC adaptor that is rated for 1300V, but we do not recommend because most BNC cables and connectors are only rated to 300-500V. Since the 2657A goes beyond the capabilities of </span><span style="font-size:14.6667px;">most</span><span style="font-size:11pt;">&#160;BNC cables and connectors, I am unable to recommend using a TRX to BNC adaptor with this unit.</span></font><br> <br> <a href="https://www.tek.com/en/datasheet/2657a-high-power-system-sourcemeter-smu-instrument">2657A High Power System SourceMeter SMU Instrument | Tektronix</a><br> <a href="https://www.tek.com/en/manual/model-hv-ca-554-high-voltage-triaxial-cable-inform">Model HV-CA-554 High-Voltage Triaxial Cable Information | Tektronix</a>

Thank you for your response. Can we use&#160;Model HV-CS-1613 and directly use it in the DPT PCB board?

Hello,<br> <br> The HV-CS-1613 is just a feedthrough or barrel type connector utilizing our HV Triax connector type on both ends, so do not think it will be what you want either.<br> <br> For the double pulse test, I suspect you are using the SMU just to charge up the capacitor bank, right?<br> I imagine that measuring very low currents with the 2657A is not important to this application.<br> Therefore, you could make use of two cables of model SHV-CA-553-x (x is the length in meters).<br> One end of this cable has the proprietary HV Triax connector that will connect with the HI or LO at rear of 2657A.<br> The other end is an SHV Plug connector.<br> Your PCB or custom test fixture could then make use of commonly available SHV Jack connectors.<br> Google 'SHV Panel Mount' to get an idea of what the open market offers for SHV.<br> <br> <br> You mention having an 8010 test fixture and the HV-CA-554 cables already to connect the 2657A to the 8010.<br> If you want to continue to use those cables, but you need a means to connect to a custom test fixture or PCB board rather than to the 8010, consider using the HV-CA-571-3 feedthrough with unterminated triax.<br> Alternately, there is a PCB mount HV-CS-1589 that might also work for your situation.