STYN265 thru STYN1865

Thyristor Discretes (SCRs)

0

20

40

60

80

100

120

0

10

20

30

40

50

60

70

80

IT(AV)M

0

10

20

30

40

50

60

70

0

20

40

60

80

100

120

140

0

25

50

75

100

125

150

0.001

0.01

0.1

1

0

100

200

300

400

0.0

0.5

1.0

1.5

2.0

0

20

40

60

80

100

0.001

0.01

0.1

1

10

100

0.0

0.5

1.0

ITS M

IT

A

s

PT

W

IT(AV)M

A

Tamb

°C

t

s

ZthJC

K/W

V

A

1

2

3

4

5

6 7 8ms910

1000

I

2

t

A

2

s

Tcase

A

°C

500

2000

F ig. 8 T ransient thermal impedance junction to case

VT

F ig. 3 F orward characteristics

t

F ig. 4 S urge overload current

IT S M: crest value, t: duration

t

F ig. 5 I2t versus time (1-10 ms)

F ig. 6 P ower dissipation versus forward current and ambient temperature

F ig. 7 Max. forward current at case

temperature

TVJ = 125°C

TVJ = 45°C

50Hz, 80%VR R M

TVJ = 125°C

DC

180° sin

120°

60°

30°

R thK A :

0.1 K/W

0.5 K/W

1 K/W

2 K/W

4 K/W

10 K/W

TVJ = 45°C

DC

180° sin

120°

60°

30°

30°

60°

120°

180°

DC

VR = 0 V

TVJ = 25°C

TVJ = 125°C

R thJC for various conduction angles d:

d

R thJC (K/W)

DC

0.62

180

0.71

120

0.748

60

0.793

30

0.817

Constants for ZthJC calculation:

i

R thi (K/W)

ti (s)

1

0.206

0.013

2

0.362

0.118

3

0.052

1.488

P3

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