New Product
SiS438DN
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
45
36
27
Package Limited
18
9
0
0
25
50
75
100
125
150
T
C
- Case Temperature (°C)
Current Derating*
35
28
21
14
7
2.0
1.6
1.2
0.8
0.4
0
0.0
0
0
25
50
75
100
125
150
25
50
75
100
125
150
T
A
- Ambient Temperature (°C)
T
C
- Case Temperature (°C)
Power, Junction-to-Ambient
Power, Junction-to-Case
* The power dissipation PD is based on TJ(max) = 150 °C, using junction-to-case thermal resistance, and is more useful in settling the upper
dissipation limit for cases where additional heatsinking is used. It is used to determine the current rating, when this rating falls below the package
limit.
Document Number: 64826
S09-0876-Rev. A, 18-May-09
www.vishay.com
5
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