Keysight B1505A User’s Guide, Edition 12 3-9
Accessories
N1259A Test Fixture
The N1259A is used for measurements of packaged devices. The N1259A can be
connected to GNDU, MFCMU, HPSMU/MPSMU, HVSMU/HVMCU, and
HCSMU/MCSMU/DHCSMU (Dual HCSMU). And the fixture initially installs the
GNDU protection adapter and the HPSMU protection adapter. Also the fixture can
install the module selector for switching the measurement resource connected to the
DUT, the high voltage resistor box for reducing the risk of device breakdown, and
the high voltage bias-tee for performing the high voltage capacitance measurement.
Front Panel
1. Power indicator (N1259A-300)
This LED turns yellow when the AC power is applied to the test fixture.
This LED turns green when the test fixture is ready to use.
2. Status indicator (N1259A-300)
A green LED lights to indicate the present connection path of the module
selector. See Figure 3-2 and Table 3-2 for the status indicator and the connection
path.
3. Hazardous voltage status indicator
This red LED lights when a source channel applies dangerous voltage. This
indicator is connected to the B1505A via the Interlock connector and works with
the High Voltage indicator on the B1505A’s front panel.
Power
HPSMU
Open
HCSMU HVSMU
Status
N1259A
Test Fixture
WARNING
Shock Hazard
The red light indicates that hazardous
voltage (±3 kV
Max) may appear at
measurement terminals.
Check this indicator before accessing.
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