IRKU/V71, 91 Series

6

Bulletin I27135 rev. F 10/02

www.irf.com

Fig. 9 - Current Ratings Characteristics

Fig. 10 - Current Ratings Characteristics

Fig. 8 - On-state Power Loss Characteristics

Fig. 7 - On-state Power Loss Characteristics (Single Phase Bridge IRKU+IRKV)

0

20

40

60

80

100 120 140

Maximum Allowable Ambient Temperature (°C)

0.3

K/W

0.5 K/

W

1 K/W

2 K/W

0.2

K/W

0

100

200

300

400

500

600

0

20 40 60 80 100 120 140 160 180

Total Output Current (A)

180°

(Sine)

180°

(Rect)

2 x IRK.71.. Series

Single Phase Bridge

Connected

T

= 125°C

J

0

20

40

60

80

100 120 140

Maximum Allowable Ambient Temperature (°C)

1 K/W

0.5 K

/W

0.3

K/W

0.2

K/W

0

100

200

300

400

500

600

0

50

100

150

200

250

300

Total Output Current (A)

60°

(Rect)

3 x IRK.71.. Series

6-Pulse Midpoint

Connection Bridge

T

= 125°C

J

Io

70

80

90

100

110

120

130

0

20

40

60

80

100

30°

60° 90°

120°

180°

Average On-state Current (A)

Conduction Angle

IRK.91.. Series

R

(DC) = 0.27 K/W

thJC

70

80

90

100

110

120

130

0

20

40

60

80 100 120 140 160

DC

30°

60°

90°

120°

180°

Average On-state Current (A)

Conduction Period

IRK.91.. Series

R

(DC) = 0.27 K/W

thJC