Vishay high power products, Δ r conduction per junction – C&H Technology VSK.250PbF Series User Manual

Page 5

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Document Number: 94417

4

Revision: 08-Oct-09

VSK.170PbF, VSK.250PbF Series

Vishay High Power Products

SCR/SCR and SCR/Diode

(MAGN-A-PAK Power Modules), 170 A/250 A

Note

Table shows the increment of thermal resistance R

thJC

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

Fig. 4 - On-State Power Loss Characteristics

ΔR CONDUCTION PER JUNCTION

DEVICES

SINUSOIDAL CONDUCTION AT T

J

MAXIMUM

RECTANGULAR CONDUCTION AT T

J

MAXIMUM

UNITS

180°

120°

90°

60°

30°

180°

120°

90°

60°

30°

VSK.170-

0.009

0.010

0.010

0.020

0.032

0.007

0.011

0.015

0.020

0.033

K/W

VSK.250-

0.009

0.010

0.014

0.020

0.032

0.007

0.011

0.015

0.020

0.033

60

70

80

90

100

110

120

130

0

40

80

120

160

200

30°

60°

90°

120°

180°

Average On-state Current (A)

M

a

x

im

u

m

A

llo

w

a

b

le C

a

s

e

T

e

m

p

e

ra

tu

re (

°C

)

Conduction Angle

VSK.170.. Series
R

thJC

(DC) = 0.17 K/W

60

70

80

90

100

110

120

130

0

50

100

150

200

250

300

DC

30°

60°

90°

120°

180°

Average On-state Current (A)

M

a

x

imu

m

A

llo

w

a

b

le

C

a

s

e

T

e

mp

e

ra

tu

re

C

)

Conduction Period

VSK.170.. Series
R (DC) = 0.17 K/W

thJC

0

50

100

150

200

250

300

0

40

80

120

160

200

RMS Limit

Conduction Angle

M

a

xi

m

u

m

A

ve

ra

g

e

O

n

-s

ta

te

Po

w

e

r L

o

s

s

(W

)

Average On-state Current (A)

180°
120°

90°
60°
30°

VSK.170.. Series
Per Junction
T

J

= 125°C

0

50

100

150

200

250

300

350

0

50

100

150

200

250

300

DC

180°
120°

90°
60°
30°

RMS Limit

Conduction Period

M

a

x

imu

m

A

v

er

a

g

e On

-s

ta

te

Pow

e

r L

o

ss

(W

)

Average On-state Current (A)

VSK.170.. Series
Per Junction
T

J

= 125°C

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