3-20 Keysight B1505A Configuration and Connection Guide
N1265A Connection Guide
Output Connection
• Gate High to DUT drive (ex. Base/Gate Force)
• Gate Low to DUT low (ex. Emitter/Source Force)
HC/MC/DHCSMU via SMU 3 terminals should be connected as follows.
• SMU 3 High Force and Sense to DUT high
• SMU 3 Low Force and Sense to DUT low
• GNDU Force and Sense to DUT low
The GNDU signals will appear at the Selector Output Low terminals as shown in
Table 3-7.
4. Set the DUT on your test adapter.
5. Close the fixture cover and perform measurement.
Gate Charge Socket Module (N1265A-014)
This socket adapter is designed for performing the gate charge measurement.
The B1513A HVSMU cannot be used for the gate charge measurement and must be
upgrade to the B1513B or later version.
To use this module, see the following simple instruction.
1. Attach the socket module to the test fixture.
2. Connect wires between the socket module terminals and the fixture output terminals.
You can use the following wires supplied with the socket module.
• N1254A-522: high current wire (yellow), 2 ea.
• N1254A-508: long wire (red), 2 ea.
• N1254A-509: long wire (black), 2 ea.
• N1265-61751: short wire (red), 2 ea.
• N1265-61752: short wire (black), 2 ea.
For making the Kelvin connection, Force and Sense must be connected together at the
device terminal.
Figure 3-11 and Figure 3-12 show connection examples.
3. Set the current control device on the left socket or connect the load resistor between the
studs for the resistor.
The current control device must be an extra 3-pin inline package device which is
expected to have the same characteristics as DUT. If the device is not available, use a
load resistor. The resistor must satisfy the following specifications.
Resistance = Vr/Ir (Vr: rated voltage, Ir: rated current)
Peak power Vr Ir 1 ms
4. Set your DUT on the right socket.
5. Close the fixture cover and perform measurement.
CAUTION Do not apply voltage/current over the maximum limit of the socket module.
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