What is RBSOA?

RBSOA is an abbreviation of Reverse Bias Safety Operating Area. The data sheet contains a characteristic graph describing double the rated voltage and rated current under the condition of maximum continuous operation temperature Tj(op). It illustrates a range of VCE and IC where safe operation is maintained when IGBT is turning off. The operation can […]

What is the meaning of the given gate resistance RG value in the specification? Does this mean external resistance?

It represents an external resistance. It excludes the module’s built-in RG(int).

The parameter for thermal resistance given in the specification is described as ( per 1 device). What does it mean?

1 device represents a value per arm (IGBT+FWD). Some models connect multiple chips per arm in parallel. This parallel-chip configuration is counted as one chip.

What factors determine the value of thermal resistance Rth(j-c)?

The thermal resistance value may differ even in the same rating, when comparing different families of products made by Fuji Electric or other companies. A low thermal resistance in a certain product may be due to a larger semiconductor chip size, or the use of a ceramic insulating substrate with good thermal conductivity.

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.

How can we determine the dead-time?

To prevent a short-circuit in the upper and lower arms, it is necessary to set an on-off timing delay between the several arms. During this time period both devices are switched off. The dead-time needs to be set so that it is generally longer than the switching time of the IGBT (toff max.). For details, […]

What is the difference between Tj(max) and Tj(op)?

The maximum allowable temperature for the chip during conventional continuous operation is specified in Tj(op). Please ensure the maximum chip temperature stays at or under Tj(op) during conventional continuous operation. The maximum allowable temperature for a chip during short-term overload or abnormal operation is specified inTj(max).

What is the acceptable range of case temperature (Tc) for an IGBT module?

Refer to the “Maximum Ratings: Case temperature” section in the data sheet.