Hitachi IGBT Module Application Manual
7.3
Quality Tests
Table 12. Tests and Methods
Test #
1
2
Type of Test
Temperature cycling
Thermal shock
Test Methods and Descriptions
Through all rating storage temperature range: 50 cycles
Prepare two liquid baths: one @ minimum storage temperature;
another @ maximum storage temperature.
Quickly put samples into each bath temperature.
Holding time: 5 minutes each temperature.
No. of cycles: 5 cycles in Fluorinert liquid.
Acceleration: 500 G (where G equals the force of gravity).
Time: 1 millisecond.
Direction: X, Y, and Z (for 3 times).
Acceleration: 10 G (where G equals the force of gravity).
Frequency: 100 Hz through 2 kHz.
Sweep time: 20 minutes per cycle.
Direction: X, Y, and Z
Time: 6 hours.
Torque: Twice the rated torque.
Storage: 336 hours.
Tensile strength: 44.1 Newtons (for MBM300GS6A)
Storage time: 30 seconds
Place on heat sink and apply power to the samples.
Current waveform: 60 Hertz half sine wave.
Peak Current ( I
p
): Rated I
C
of module.
Temperature swing:
∆
T
C
= 70 degrees Celsius.
Duration: 5,000 cycles.
3
Mechanical Shock
4
Mechanical Vibration
5
6
7
Screw torque
Fast-on strength
Intermittent operating life
8
Applied DC voltage
Voltage: 0.8 times rated V
ce
.
Time: 1,000 hours
Temperature: 125 degrees Celsius.
Peak voltage: 0.8 times rated V
ce
.
Time: 1,000 hours.
Test temperature: 125 degrees Celsius.
Temperature: Maximum storage temperature.
Storage time: 1,000 hours.
Temperature: Minimum storage temperature
Storage time: 1,000 hours.
Humidity: 90% Relative Humidity (RH).
Temperature: 60 degrees Celsius.
Time: 1,000 hours.
9
Applied AC voltage
10
11
12
High-temperature storage
Low-temperature storage
High humidity
56
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