SiR158DP
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Vishay Siliconix
S14-1009-Rev. B, 12-May-14
6
Document Number: 64730
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TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)
Normalized Thermal Transient Impedance, Junction-to-Ambient
Normalized Thermal Transient Impedance, Junction-to-Case
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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?64730
.
10
-3
10
-2
1
10
100010
-1
10
-4
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
= 65 °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
1
0.1
0.01
Duty Cycle = 0.5
Square Wave Pulse Duration (s)
Normalized Effective Transient
Thermal Impedance
10
-3
10
-2
110
-1
10
-4
0.05
0.02
Single Pulse
0.1
0.2
