User Manual

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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)
Maximum Allowable Case Temperature (°C)
Conduction Angle
25RIA Series
R (DC) = 0.75 K/W
thJC
80
90
100
110
120
130
010203040
DC
30°
60°
90°
120°
180°
Average On-state Current (A)
Maximum Allowable Case Temperature (°C)
Conduction Period
25RIA Series
R (DC) = 0.75 K/W
thJC