200MT40KB

5

Bulletin I27129 rev. C 05/03

www.irf.com

Fig. 3 - Maximum Non-Repetitive Surge Current

Fig. 4 - Maximum Non-Repetitive Surge Current

Fig. 5 - Current Rating Nomogram (1 Module Per Heatsink)

Number Of Equal Amplitude Half Cycle Current Pulses (N)

Pulse Train Duration(s)

Maximum Allowable Ambient Temperature (°C)

Total Output Current (A)

400

600

800

1000

1200

1400

1600

1

10

100

Per Junction

At Any Rated Load Condition And With

Rated Vrrm Applied Following Surge.

Initial Tj = 150˚C

@ 60 Hz 0.0083 s

@ 50 Hz 0.0100 s

0

200

400

600

800

1000

1200

1400

1600

1800

2000

0.01

0.1

1

10

Maximum Non Repetitive Surge Current

Versus Pulse Train Duration. Control

Per Junction

Of Conduction May Not Be Maintained.

Initial T j = 150˚C

No Voltage Reapplied

Rated V rrm Reapplied

0

30

60

90

120

150

0.5

K/W

1 K/W

0.3

K/W

0.2

K/W

0.1

K/W

0

100

200

300

400

500

0

40

80

120

160

200

120˚

(Rect)

Tj = 125˚C

Fig. 6 - Thermal Impedance Z

thJC

Characteristics

Square Wave Pulse Duration (s)

0.01

0.1

1

10

0.0001

0.001

0.01

0.1

1

10

Steady State Value

RthJC per junction = 0.69 K/W

DC Operation)