3-42 Keysight B1505A User’s Guide, Edition 12
Accessories
5. K Thermocouple 1 and 2 terminals
For connecting the thermocouple to monitor temperature around a DUT.
The N1265A-041 thermocouple supports maximum of +180 °C.
The N1254A-554 thermocouple supports maximum of +250 °C.
6. UHV High and Low terminals
Output terminals internally connected to the UHV High and Low input
connectors on the rear panel.
High and Low must be connected to the high and low terminals of a DUT
respectively. Use the blank silicon plate and the UHV/SHV to no connector
cables (N1254A-520) for connection. Also see “Blank Silicon Plate” on page
3-52.
CAUTION Open the Gate terminals, the Selector Output terminals, and the Bias Tee terminals
for the ultra high voltage measurement using the UHVU.
Figure 3-11 N1265A Built-in Selector Simplified Internal Connections
Low High
Sense Force
S: Sense
F: Force
P.A
GNDU
UHCU
SMU HVSMU
SF
SF
SF
F
P.A: Protection adapter
Sense Force
HVSMU force is
connected to
High sense line.
MCSMU MCSMU
I-controlV-control
MCSMU
FS
Low High
Gate
100 kΩ
0 Ω
10 Ω
100 Ω
or 1 kΩ
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