MBRB4030

3

Rectifier Device Data

ELECTRICAL CHARACTERISTICS

IF(AV), AVERAGE FORWARD CURRENT (A)

50

40

30

20

10

0

70

50

30

60

40

80

DC

10

TA, AMBIENT TEMPERATURE (°C)

TA, AMBIENT TEMPERATURE (°C)

20

15

10

5

0

50

100

DC

10

20

SQUARE WAVE

150

12

10

8

6

2

0

150

100

050

t, TIME (ms)

1.0

0.1

0.01

100

0.1

10

1.0

1000

SINGLE PULSE

SURFACE MOUNTED ON

MINIMUM RECOMMENDED

PAD SIZE

R

θJA = 25°C/W

4

SQUARE WAVE

20

010

IPK

IAV

= 5.0 (CAPACITIVE

LOAD)

IPK

IAV

= 5.0 (CAPACITIVE

LOAD)

π (RESISTIVE LOAD)

IPK

IAV

= 5.0 (CAPACITIVE

LOAD)

20

TJ = 150°C

10

20

DC

π (RESISTIVE LOAD)

R

θJA = 50°C/W

π

(RESISTIVE LOAD)

SQUARE WAVE

TC, CASE TEMPERATURE (°C)

70

50

40

30

20

10

0

140

120

100

130

110

150

10

20

SQUARE WAVE

60

DC

IPK

IAV

= 5.0

π (RESISTIVE LOAD)

(CAPACITIVE

LOAD)

Ppk

Ppk

tp

t1

TIME

DUTY CYCLE, D = tp/t1

PEAK POWER, Ppk, is peak of an

equivalent square power pulse.

∆TJL = Ppk • RθJL [D + (1 – D) • r(t1 + tp) + r(tp) – r(t1)]

where

∆TJL = the increase in junction temperature above the lead temperature

r(t) = normalized value of transient thermal resistance at time, t, for example,

Figure 6. Current Derating, Infinite Heatsink

Figure 7. Current Derating

Figure 8. Current Derating, Free Air

Figure 9. Forward Power Dissipation

Figure 10. Thermal Response