How can we reduce radiation noise?

Radiation noise can be reduced through methods such as reducing the loop current area where noise is generated, or adjusting the gate resistance. For details, refer to IGBT’s Application Manual Chapter 10.

How can we reduce conductive noise?

“Conductive noise can be reduced through methods such as adding an LC filter on the AC power side, adding a ferrite core, or adjusting the gate resistance to suppress dv/dt at the time of switching. For details, refer to IGBT’s Application Manual Chapter 10.”

What types of noise are generated at an inverter unit that has a power semiconductor device built in?

There are two types of noise: conductive noise (noise terminal voltage) and radiation noise. Conductive noise propagates over a conductor or earth wire in a main circuit. It is divided into two groups: normal mode and common mode. Radiation noise is generated within a device and emitted into the air because the device wiring or […]

Have Fuji semiconductor parts an UL certification?

Power semiconductor modules of Fuji Electric Corp. of America have been certified with UL standard 1557, category code QQQX2 (File No. E82988). The relevant model types can be found on the UL website’s (http://japan.ul.com/) Online Certifications Directory.

Are Fuji semiconductor parts compliant with REACH regulations?

Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.

Where can we obtain an RoHS Certificate of Conformity (CoC)?

Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.

Is it possible to get a product which is not in the catalog? Does Fuji make customized products?

Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.

Is there any quality difference between products made in Japan and those made overseas?

Fuji Electric Corp. of America enforces the same quality standard for product management at all locations, regardless of where the manufacturing sites are.

Where are Fuji semiconductor products manufactured?

The semiconductor products of Fuji Electric Corp. of America are manufactured at its six sites in Japan (including Matsumoto Factory, Yamanashi Factory, Fuji Electric Power Semiconductor Co., Ltd., and Fuji Electric Tsugaru Semiconductor Co., Ltd.), and three overseas sites (Fuji Electric (ShenZhen) Co., Ltd., Fuji Electric Philippines, Inc., and Fuji Electric (Malaysia) Sdn. Bhd.).

What is the diode’s I2t?

I2t is a Joule-integral for overcurrent allowed within the range that does not result in element destruction. Overcurrent is defined in one cycle at commercially restricted half-waves (50, 60 Hz).