St303spbf series, Vishay high power products, Inverter grade thyristors (stud version), 300 a – C&H Technology ST303SPbF Series User Manual

Page 5: Conduction

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Document Number: 94375

4

Revision: 30-Apr-08

ST303SPbF Series

Vishay High Power Products

Inverter Grade Thyristors

(Stud Version), 300 A

Note
• The table above shows the increment of thermal resistance R

thJ-hs

when devices operate at different conduction angles than DC

Fig. 1 - Current Ratings Characteristics

Fig. 2 - Current Ratings Characteristics

Fig. 3 - On-State Power Loss Characteristics

ΔR

thJ-hs

CONDUCTION

CONDUCTION ANGLE

SINUSOIDAL CONDUCTION

RECTANGULAR CONDUCTION

TEST CONDITIONS

UNITS

180°

0.011

0.008

T

J

= T

J

maximum

K/W

120°

0.013

0.014

90°

0.017

0.018

60°

0.025

0.026

30°

0.041

0.042

60

70

80

90

100

110

120

130

0

50

100

150

200

250

300

350

Ma

x

imu

m

A

llo

w

a

b

le

C

a

se

T

e

m

p

e

ra

tu

re

(

°C

)

30°

60°

90°

120°

180°

Average On-state Current (A)

Conduc tion Angle

ST303S Series
R (DC) = 0.10 K/ W

thJC

40

50

60

70

80

90

100

110

120

130

0

100

200

300

400

500

DC

30°

60°

90°

120°

180°

Average On-state Current (A)

M

a

xi

m

u

m

A

llo

w

a

bl

e

C

a

se

T

e

m

p

e

rat

u

re (

°C

)

Conduction Period

ST303S Series
R (DC) = 0.10 K/ W

thJC

25

50

75

100

125

Maximum Allowab le Ambient Temperature (°C)

R

=

0.0

1

K

/W

-

D

e

lta

R

th

SA

0.3

K/ W

0.5 K/

W

0.2

K/ W

0.1

6 K

/ W

0.1

2

K/ W

0.0

6

K/

W

0.0

8

K/ W

0.0

3

K

/W

0

100

200

300

400

500

600

0

50

100

150

200

250

300

180°
120°

90°
60°
30°

RMS Limit

Conduction Angle

M

a

xi

m

u

m

A

v

e

ra

g

e

O

n

-s

ta

te

P

o

w

e

r L

o

ss

(

W

)

Average On-state Current (A)

ST303S Series
T = 125°C

J

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