TDK Corporation presents a new series of compact EPCOS SMT current sense transformers.
They are designed for measuring currents of up to 7 A at frequencies between 50 kHz and 1 MHz. The B82801A1* series comprises nine types that offer transformation ratios from 1:20 to 1:150 between the primary and secondary winding.
Power capacitors with high-current capability that can withstand significant voltage fluctuations and surges help achieve stable voltage in HVDC systems over the long-distance transmission of electricity, as explained by TDK featured article.
TDK Corporation has extended its range of dual inductors to include the new EPCOS series B82477D6*. The seven series types cover an inductance range from 2 x 3.9 µH to 2 x 47 µH and are designed for maximum rated currents from 2.83 A to 7.05 A.
Inverter circuits that convert direct current to alternating current are used to drive motors and generators. Such circuits incorporate Insulated-Gate Bipolar Transistors (IGBT) and other semiconductor switches. Recently, Silicon Carbide (SiC) and other high-speed devices are also coming into use, operating at higher frequencies while featuring smaller dimensions.
Power transistors based on gallium nitride and silicon carbide impose very high demands on DC link capacitors. TDK has now developed a dielectric that allows such film capacitors to be used up to +125 °C instead of +105 °C while optimizing its winding structure.
Components operating in high vibration and wide operating temperature environments such, as automotive electronics, have to absorb both board flexure stress and stress from the expansion and contraction of solder joints due to thermal shock. Thereby manufactures have developed conductive soft resin-polymer as the thermo-mechanical shock absorber improving connection reliability compare to conventional electrodes. TDK has present its explanation in article below.
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