Datasheet

Document Number: 73272
S09-0540-Rev. E, 06-Apr-09
www.vishay.com
5
Vishay Siliconix
Si4900DY
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
* The power dissipation P
D
is based on T
J(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.
Current Derating*
Single Pulse Avalanche Capability
0
1
2
3
4
5
6
25 50 75 100 125 150
I
D
- Drain Current (A)
T
C
- Case Temperature (°C)
1
100
10
T
A
- Time In Avalanche (s)
0.0010.00010.000010.000001
I
C
- Peak Avalanche Current (A)
Power Derating
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 25 50 75 100 125 150
T
C
- Case Temperature (°C)
Power Dissipation (W)