Si8808DB
www.vishay.com
Vishay Siliconix
S15-0346-Rev. B, 23-Feb-15
6
Document Number: 62547
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ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)
Normalized Thermal Transient Impedance, Junction-to-Ambient (On 1" x 1" FR4 Board with Maximum Copper)
Normalized Thermal Transient Impedance, Junction-to-Ambient (On 1" x 1" FR4 Board with Minimum Copper)
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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 www.vishay.com/ppg?62547
.
0.001 0.01 1
10
10000.10.0001 100
0.2
0.1
Square Wave Pulse Duration (s)
Normalized Effective Transient
Thermal Impedance
1
0.1
0.01
t
1
t
2
Notes:
P
DM
1. Duty Cycle, D =
2. Per Unit Base=R
thJA
= 185 °C/W
3. T
JM
-T
A
=P
DM
Z
thJA
(t)
t
1
t
2
4. Surface Mounted
Duty Cycle = 0.5
Single Pulse
0.02
0.05
0.001 0.01 1
10
10000.10.0001 100
0.2
0.1
Square Wave Pulse Duration (s)
Normalized Effective Transient
Thermal Impedance
1
0.1
0.01
t
1
t
2
Notes:
P
DM
1. Duty Cycle, D =
2. Per Unit Base=R
thJA
= 330 °C/W
3. T
JM
-T
A
=P
DM
Z
thJA
(t)
t
1
t
2
4. Surface Mounted
Duty Cycle = 0.5
Single Pulse
0.02
0.05
