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Document Number: 74335
S-80515-Rev. C, 10-Mar-08
Vishay Siliconix
SiB411DK
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see http://www.vishay.com/ppg?74335.
Normalized Thermal Transient Impedance, Junction-to-Ambient
1
0.1
0.01
Normalized Effective Transient
Thermal Impedance
10
-3
10
-2
1 10 100010
-1
10
-4
100
Square Wave Pulse Duration (s)
Duty Cycle = 0.5
Single Pulse
0.1
0.2
0.05
0.02
1. Duty Cycle, D =
2. Per Unit Base = R
thJA
= 80 °C/W
3. T
JM
- T
A
= P
DM
Z
thJA
(t)
t
1
t
2
t
1
t
2
Notes:
4. Surface Mounted
P
DM
Normalized Thermal Transient Impedance, Junction-to-Case
10
-3
10
-2
10
-1
10
-4
0.1
Square Wave Pulse Duration (s)
Normalized E
ective T ransient
Thermal Impedance
Duty Cycle = 0.5
Single Pulse
0.02
0.05
0.1
0.2