Find the optimal product based on characteristics, voltage range, capacitance range, and shape.

You can find the optimal product based on features, voltage range, capacitance range, and shape.

TDK Corporation presents its new B33331I6* series, compact EPCOS motor-run capacitors that comply with safety class S2 as well as the IEC 60335-2-24 standard, that will come onto the market in September 2023. The robust aluminum cans have extremely compact dimensions, making the series now the most compact motor-run capacitors on the market. Depending on the capacitance, the diameters are only 30 mm or 35 mm, and the heights vary between 73 mm and 103 mm including the connections. They are designed for a voltage of 450 V AC at 50/60 Hz, and, with 13 types, cover a capacitance range from 1 μF to 20 μF.

One of the well-established key requirements in solar inverters is their high efficiency. But also, their costs, size and weight are subject to continuous improvements. One approach to better fulfil all these demanding requirements simultaneously is the use of multilevel topologies.
The main advantages of switching between multiple voltage levels are lower voltage stress for the semiconductors and lower ripple stress for the power chokes.
This means that lower-voltage semiconductors can be used, which are typically cheaper.
Lower ripple stress for the chokes makes smaller and thereby lighter and cheaper choke designs possible.
The flying capacitor topology is a multilevel topology, that is an interesting choice especially for (but not limited to) the booster stage of a solar inverter. As its name implies, it needs a capacitor as a key element. This article describes and compares possible TDK solutions therefor.

TDK Corporation (TSE:6762) presents the B3271*H* series, new EPCOS film capacitors for DC link applications that feature high energy and power density. The capacitors are rated for voltages from 500 V DC to 1600 V DC, offer capacitance values from 0.47 µF to 170 µF and are suitable for a maximum operating temperature of up to 105 °C. At a rated voltage and operating temperature of 70 °C, the typical life of the rugged, self-healing and RoHS-compliant capacitors is 95,000 hours.

TDK Corporation (TSE:6762) has added the B32354S* series to its portfolio of metalized EPCOS polypropylene (MKP) capacitors for filter applications. The new devices, which feature a 4-pin design and a pitch of 52.5 mm, are rated for VRMS of 275 V AC or 350 V AC and cover a capacitance range from 10 μF to 40 μF. The maximum operating temperature is 85 °C.