May, 2021
www.us-tech.com
Page 81 TDK Updates AlCap Online Capacitor Tool
FOUNTAIN HILLS, AZ — TDK Corporation has released version 4.0 of its online AlCap useful life calculation tool for EPCOS alu- minum electrolytic capacitors. The tool covers all new high-volt- age capacitors (greater than 150 VDC) with screw, snap-in and solder pin connections. These DC link capacitors
are particularly suitable for new designs of converters for indus-
R&S Intros Two New Source
Measure Units COLUMBIA, MD — Rohde & Schwarz has launched two new source measurement units (SMUs), the NGU201 and NGU - 401, designed to enable simul - taneous sourcing and measuring of currents and voltages with high precision. The two-quadrant R&S
NGU201 addresses wireless device battery tests and auto- matically switches from source mode to sink mode at a defined positive input voltage. The four- quadrant version can also switch at negative voltages, supporting source measurements for a vast range of power supply types. The instruments’ innovative
current feedback amplifier tech- nology provides both maximum sensitivity and accuracy to reli- ably measure currents from nA to A in a single sweep. To handle rapidly changing load conditions typical of battery-powered com- munications devices switching between sleep and transmit modes, the R&S NGU has an optimized control loop load pro- viding a recovery time of under 30 µs with minimum overshoot. The R&S NGU SMUs
include six current ranges from 10 µA with 100 pA resolution, to 10A with 10 µA resolution. For all ranges, accuracy up to 0.025 percent is achieved. Voltage is measured with 10 µV resolution in the 20V range and 1 µV reso- lution in the 6V range. For the typical measurement problem of capacitance at the input to the device under test, the R&S NGU features a variable capacitance mode adjustable in steps from 1 to 470 µF, compensating the capacitance, so that the current is displayed as if it were meas- ured directly at the device under test. Devices up to 20V, 8A, and
60W are supported. Contact: Rohde & Schwarz
USA, Inc., 6821 Benjamin Franklin Drive, Columbia, MD 21046 % 888-837-8772 E-mail:
tomas.berghall@
rsa.rohde-
schwarz.com Web:
www.rohde-schwarz.com
trial applications, such as photo- voltaics and wind power genera- tion, as well as uninterruptible power supplies. The AlCap tool enables up to 15 load profiles to be simultaneously entered, cal- culated and, if so desired, stored for later use. This powerful function
allows applications to be devel- oped both with single capacitors and capacitor banks. The tool can perform on a customer-spe- cific basis calculation. This mere- ly requires the CSC code speci- fied in the respective data sheet to be entered. Once all relevant
values have been entered, in addition to the useful life of the
capacitors under defined load conditions, the user also obtains data regarding the hot-spot tem- perature, power dissipation and more. Coupled with its useful lifecycle under defined load con- ditions, the AlCap tool provides industrial designers with a solu- tion that meets the needs of their
demanding applications. Contact: TDK Electronics,
Inc., 16138 E Glenview Place,
TDK’s online tool measures the lifetime of EPCOS capacitors.
Fountain Hills, AZ 85268 % 480-836-4104 E-mail:
debbie.martin@tdk-elec-
tronics.tdk.comWeb:
www.tdk-
electronics.tdk.com
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