Datasheet

Document Number: 73411
S09-2434-Rev. C, 16-Nov-09
www.vishay.com
5
Vishay Siliconix
Si4946BEY
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
* The power dissipation P
D
is based on T
J(max)
= 175 °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*
0
1
2
3
4
5
6
7
8
0 25 50 75 100 125 150 175
I
D
- Drain Current (A)
T
C
- Case Temperature (°C)
Power, Junction-to-Case
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
25 50 75 100 125 150 175
T
C
- Case Temperature (°C)
Power (W)
Single Pulse Avalanche Capability
100
0.000001 0.001
1
10
0.0001
T
A
- Time In Avalanche (s)
I
C
- Peak Avalanche Current (A)
T
A
=
L· I
D
BV - V
DD
0.00001