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SI4668DY Datasheet, PDF (5/7 Pages) Vishay Siliconix – N-Channel 25-V (D-S) MOSFET
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
18
Si4668DY
Vishay Siliconix
14
11
7
4
0
0
25
50
75
100 125 150
TC - Case Temperature (°C)
Current Derating*
6.0
1.60
4.8
1.28
3.6
0.96
2.4
0.64
1.2
0.32
0
0
25
50
75
100 125 150
TC - Case Temperature (°C)
Power, Junction-to-Foot
0
0
25
50
75
100 125 150
TA - Ambient Temperature (°C)
Power, Junction-to-Ambient
* 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: 69513
S09-0394-Rev. B, 09-Mar-09
www.vishay.com
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