STPS20L45CF/CW/CT/CFP/CG

2/9

Symbol

Parameter

Tests Conditions

Min.

Typ.

Max.

Unit

Reverse leakage

current

Tj = 25°C

0.2

mA

Tj = 125°C

65

130

mA

Forward voltage drop

Tj = 25

0.55

V

Tj = 125°C

0.44

0.5

Tj=25

0.73

Tj = 125°C

0.62

0.72

Pulse test : * tp = 380 µs,

δ <2%

To evaluate the conduction losses use the following equation :

2

(RMS)

STATIC ELECTRICAL CHARACTERISTICS (per diode)

Symbol

Parameter

Value

Unit

Junction to case

ISOWATT220AB

TO-220FPAB

Per diode

Total

Coupling

4.5

3.5

2.5

°C/W

Junction to case

TO-247

Per diode

Total

Coupling

2.2

1.20

0.3

°C/W

Junction to case

TO-220AB

D

Per diode

Total

Coupling

2.2

1.3

0.3

°C/W

THERMAL RESISTANCES

02468

10

12

14

0

1

2

3

4

5

6

7

8

IF(av) (A)

PF(av)(W)

δ = 0.2

δ = 0.5

δ = 1

δ = 0.05

δ = 0.1

T

tp

Fig. 1: Average forward power dissipation versus

average forward current (per diode).

0

25

50

75

100

125

150

0

1

2

3

4

5

6

7

8

9

10

11

12

IF(av)(A)

Rth(j-a)=15°C/W

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

TO-220AB/TO-247

ISOWATT220AB

T

tp

Tamb(°C)

Fig. 2: Average forward current versus ambient

temperature(

δ = 0.5, per diode).

When the diodes 1 and 2 are used simultaneously :