Are 2in1 modules suitable for chopper circuits?

Yes, it is possible to use a 2in1 module in a chopper circuit and use only one of the two IGBTs. To avoid misfiring, please carefully short-circuit gate and the emitter of the unused IGBT.

We would like to design a DC/DC conversion circuit. Please propose us suitable IGBT modules.

For a voltage boosting circuit, we can offer chopper modules with an IGBT in the low arm side. For step-up/down converter a 2in1 module with 2 IGBTs in series would be suitable. If only one of the two IGBTs is used, please short-circuit gate and emitter of the other one to avoid misfiring.

The IGBT module for 3-level inverter (Package No.:M403) has an extraordinary terminal. What is the C terminal in the photo used for?

Please do not connect that terminal to anything. It does not have any electrical connection to the IGBT module.

What is a recommended soldering condition for the solder pin terminals of IGBT modules?

“Please solder the pins within "Soldering Heat-Resistance Test Conditions" specified in the reliability test items in the specifications. Please confirm the actual terminal temperature by using a thermocouple.”

Does a Safety Operating Area for FWD (Free Wheeling Diode) exist?

Similar to an IGBT, the FWD has a SOA (Safty Operating Area). Please refer to the following graph which is also shown in the product specifications. It displays an area that indicates the maximum allowed power Pmax. Since Pmax is the product of the voltage VAK applied during reverse recovery and the forward current IF, […]

The module with press-fit pins, can they be mounted by soldering?

Yes, it is possible.

The modules with press-fit pins, can they be pulled out and pressed in again?

It is not recommended.

What is the reason of power cycle capability ΔTj curve bending at 50oC?

ΔTj power cycle breakdown mode will become solder degradation mode in the operation with large temperature variation and wire peeling mode in the operation with relatively small temperature variation. Additionally, the transition from plastic to elastic behavior occurs at around 50oC, which causes an inflection point in the curve.

What is the power cycle capability ΔTc?

Power cycle capability is the capability of the module to withstand repeated heating and cooling. The case temperature Tc will goes up and down until the modules fails: Stress strain is generated between the metal base plate and the insulating substrate causing fatigue in the solder under the insulating substrate. Refer to technical documents describing […]

What is the insertion load of the press-fit module?

Please refer to the Mounting Instruction.