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.

How long has Fuji Electric been manufacturing IGBT products?

Fuji Electric Corp. of America began manufacturing IGBTs in 1988, and now has nearly 30 years of history in supplying IGBT products to the market.

What is EMS?

EMS is an abbreviation of Electro Magnetic Susceptibility. The word describes an electronic device’s capability and performance against surrounding interference, and it is also called immunity. It includes evaluation items such as electromagnetic waves, static electricity, and lightning surge. For details, refer to Application Manual Chapter 10.

What is EMI?

EMI is an abbreviation of Electro Magnetic Interference. The word describes the negative effect caused on peripheral equipment by an electronic device, and it is also called emission. EMI consists of conductive noise that leaks to a power source, and radiation noise that is emitted as electromagnetic waves. For details, refer to Application Manual Chapter […]

What are countermeasures against static electricity when an IGBT module is used?

(1) Discharge any static electricity by grounding through a high-capacity resistor, and use a conductive mat that has been grounded (2) Hold the package body without directly touching the IGBT module terminals (especially control terminal) (3) Ground tools such as a soldering tip, at an adequately low resistance (4) Protect a control terminal using conductive […]

Is there any quick way to determine the quality of IGBT before mounting?

You can verify the IGBT by checking the leakage current between G and E, and C and E, using a transistor curve tracer (CT). Simple failure diagnosis can also be done using a voltage, resistance tester in place of a CT. For details, refer to Application Manual Chapter 4-2.

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.

Are there any measures to prevent misfiring by high dv/dt during the reverse recovery of the FWD?

Some of the ways to prevent misfiring of an IGBT are as follows: (1) by adding a capacity component CGE to the area between the gate and emitter (2) by increasing –VGE (3) by increasing gate resistance (RG) The effectiveness of these measures will vary depending on the applicable gate circuit, so please verify thoroughly […]

What do we need to be aware of when soldering an IGBT module?

Avoid soldering under excessive temperature. Soldering condition have to be within specification value. It may result in package degradation. Please contact Fuji Electric Corp. of America or your local sales representative or distributor to answer your question.

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.