25ria series, Vishay high power products, Medium power thyristors (stud version), 25 a – C&H Technology 25RIA Series User Manual

Page 5: Thermal and mechanical specifications, Conduction

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Document Number: 93701

4

Revision: 19-Sep-08

25RIA Series

Vishay High Power Products

Medium Power Thyristors

(Stud Version), 25 A

Note
• The table above 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

THERMAL AND MECHANICAL SPECIFICATIONS

PARAMETER SYMBOL

TEST

CONDITIONS

VALUES

UNITS

Maximum operating junction
and storage temperature range

T

J

, T

Stg

- 65 to 125

°C

Maximum thermal resistance,
junction to case

R

thJC

DC operation

0.75

K/W

Maximum thermal resistance,
case to heatsink

R

thCS

Mounting surface, smooth, flat and greased

0.35

Allowable mounting torque

Non-lubricated threads

3.4

+ 0 - 10 %

(30)

N · m

(lbf

⋅ in)

Lubricated threads

23

+ 0 - 10 %

(20)

Approximate weight

14

g

0.49

oz.

Case style

See dimensions - link at the end of datasheet

TO-208AA (TO-48)

ΔR

thJC

CONDUCTION

CONDUCTION ANGLE

SINUSOIDAL CONDUCTION

RECTANGULAR CONDUCTION

TEST CONDITIONS

UNITS

180°

0.17

0.13

T

J

= T

J

maximum

K/W

120°

0.21

0.22

90°

0.27

0.30

60°

0.40

0.42

30°

0.69

0.70

80

90

100

110

120

130

0

5

10

15

20

25

30

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

perat

u

re

C

)

Conduction Angle

25RIA Series
R (DC) = 0.75 K/W

thJC

80

90

100

110

120

130

0

10

20

30

40

DC

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

er

at

ure

(

°C

)

Conduction Period

25RIA Series
R (DC) = 0.75 K/W

thJC

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