What happens to IGBT modules in a case where an application exceeds the ΔTj power cycle capability?

It will cause a separation of aluminum wire, or a crack in the solder under the chip. Thermal destruction will result from the current concentrating on the relevant part of the chip, or increased thermal resistance.

Is there ΔTc power cycle curve?

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

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 there a lifetime for IGBT modules?

Yes. The main factors impacting the IGBT module’s life expectancy are temperature gaps involving the element’s junction temperature Tj, and increase and decrease of case temperature Tc. Refer to technical documents describing the relationship of ΔTj and ΔTc with the device life expectancy.

What is the piece of black sponge pinned on the module terminals?

The piece of black sponge is attached for protection. Please keep the sponge on the module at the time of storage.

How do I store semiconductor devices?

The desired storage environment has a temperature range of 5 to 35oC, and humidity range of 45% to 75%. Avoid storage under load, and secure a location with little temperature fluctuation. For details, refer to Application Manual Chapter 3-8.

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.

How do I calculate the power cycle in cases where there are multiple temperature rise peaks?

In cases where the temperature increases n-times per device operation cycle, we assign a power cycle life expectance count as PC(k=1, 2, 3, …, n). PC(k) is the power cycle life for the k-th temperature rise. A combined power cycle life expectancy count can be expressed by the formula below. For details, refer to Application […]