
Keithley Instruments
28775 Aurora Road
Cleveland, Ohio 44139
1-800-833-9200
tek.com/keithley
Model 4200-CVU-PWR Parts Package
PA-977 Rev. E August 2021 *PPA-977E* 1
2 2 SMA male to BNC female adapter
2 3 SMA male to BNC male adapter
2 4 SMA tee female-male-female
2 5 50 Ω SMA male shorting cap
SMA plug to SMA plug coaxial
cable
2 7 SMA male to SSMC Y cable
assembly
Instruction sheet
Introduction
The Model 4200-CVU-PWR CVU Power Package enables C-V measurements with a dc voltage bias of up to
±200 V or 400 V differential (0 V to ±400 V) and a current output of up to 300 mA. Note that the items shipped
may vary from those pictured here.
Figure 1: 4200-CVU-PWR package

Model 4200-CVU-PWR Parts Package
2 PA-977 Rev. E August 2021
Using this package, the 4215-CVU Capacitance-Voltage Unit measures the capacitance and either one or two
4200-SMUs or 4215-SMUs are used to supply the dc bias or sweep voltage. The 4200-CVU-PWR is
compatible with the 4200A-SCS and 4200-SCS.
Connect to a device
The voltage output determines if one or two 4205-RBTs are required in the test circuit. For C-V measurements
with an applied voltage bias up to ±200 V, one 4205-RBT is required. For C-V measurements with a voltage
differential up to 400 V, two 4205-RBTs are required.
To make C-V measurements with an applied voltage bias up to +/- 200 V, connect one SMU (source-measure
unit), one 4215-CVU (capacitance-voltage unit), and one 4205-RBT to the device, as shown in the next figure.
The SMU sources the dc voltage and the CVU measures the capacitance of the device under test (DUT). The
4205-RBT allows coupling of the ac signals from the CVU and the dc signal from the SMU.