Symbol

Parameter

Value

Unit

Junction to case

TO-220AB/ DPAK

Per diode

Total

5.5

3

°C/W

ISOWATT220AB

Per diode

Total

7.5

5.2

Coupling

TO-220AB

0.5

°C/W

ISOWATT220AB

3

THERMAL RESISTANCES

Symbol

Tests Conditions

Min.

Typ.

Max.

Unit

Reverse leakage current

Tj = 25

100

µA

Tj = 125

°C

2

10

mA

Forward voltage drop

Tj = 25

0.63

V

Tj = 25

0.84

Tj = 125

0.5

0.57

Tj = 125

0.67

0.72

Pulse test :

* tp = 380

µs, δ <2%

To evaluate the maximum conduction losses use the following equation :

2

(RMS)

STATIC ELECTRICAL CHARACTERISTICS (per diode)

0

25

50

75

100

125

150

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Tamb(

°C)

IF(av)(A)

Rth(j-a)=15

°C/W

Rth(j-a)=Rth(j-c)

ISOWATT220AB

TO-220AB/DPAK

T

tp

Fig. 2: Average current versus ambient temperature

(

δ = 0.5, per diode).

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

2.25

2.50

IF(av) (A)

PF(av)(W)

T

tp

δ =1

δ = 0.5

δ = 0.2

δ = 0.1

δ = 0.05

Fig. 1: Average forward power dissipation versus

average forward current (per diode).

When the diodes 1 and 2 are used simultaneously :

STPS640CT/CF/CB

2/6