8
Dec. 20
Mitsubishi IPM-series Application Note
Correct and Safety Use of Power Module
6. Correct and Safety Use of Power Module
Unsuitable operation (such as electrical, mechanical stress and so on) may lead to damage of power modules.
Please pay attention to the following descriptions and use Mitsubishi Electric's IGBT modules according to the guidance.
Cautions
During Transit • Keep sipping cartons right side up. If stress is applied by either placing a carton upside down or by
leaning a box against something, terminals can be bent and/or resin packages can be damaged.
• Tossing or dropping of a carton may damage devices inside.
• If a device gets wet with water, malfunctioning and failure may result. Special care should be taken
during rain or snow to prevent the devices from getting wet.
Storage • The temperature and humidity of the storage place should be 5∼35°C and 45∼75% respectively.
The performance and reliability of devices may be jeopardized if devices are stored in an
environment far above or below the range indicated above.
Prolonged Storage • When storing devices more than one year, dehumidifying measures should be provided for the
storage place. When using devices after a long period of storage, make sure to check the exterior
of the devices is free from scratches, dirt, rust, and so on.
Operating
Environment
• Devices should not be exposed to water, organic solvents, corrosive gases, explosive gases, fine
particles, or corrosive agents, since any of those can lead to a serious accident.
Flame Resistance • Although the epoxy resin and case materials are in conformity with UL 94-V0 standards, it should be
noted that those are not non-flammable.
Anti-electrostatic
Measures
(1) Precautions against the device rupture caused by static electricity
Static electricity of human bodies and cartons and/or excessive voltage applied across the gate to
emitter may damage and rupture devices. The basis of anti-electro static build-up and quick
dissipation of the charged electricity.
* Containers that are susceptible to static electricity should not be used for transit nor for storage.
* Gate to emitter should be always shorted with a carbon cloth or the like until right before a module is
used. Never touch the gate terminals with bare hands.
Anti-electrostatic
Measures
* Always ground the equipment and your body during installation (after removing a carbon cloth or the
like. It is advisable to cover the workstation and it's surrounding floor with conductive mats and
ground them.
* It should be noted that devices may get damaged by the static electricity charged to a printed circuit
board if the gate to emitter of the circuit board is open.
* Use soldering irons with grounded tips.
(2) Precautions when the gate to emitter is open
* Voltage should not be applied across the collector to emitter when the gate to emitter is open.
* The gate to emitter should be shorted before removing a device from a unit.
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