SiUD402ED
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Vishay Siliconix
S15-1129-Rev. A, 18-May-15
6
Document Number: 62968
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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
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.
0.1
1
0.0001 0.001 0.01 0.1 1 10 100 1000
Normalized Effective Transient
Thermal Impedance
Square Wave Pulse Duration (s)
Duty Cycle = 0.5
0.2
0.1
0.05
0.02
Single Pulse
t
1
t
2
Notes:
P
DM
1. Duty Cycle, D =
2. Per Unit Base=R
thJA
= 135 °C/W
3. T
JM
-T
A
=P
DM
Z
thJA
(t)
t
1
t
2
4. Surface Mounted
0.01
0.1
1
0.0001 0.001 0.01 0.1 1 10 100 1000
Normalized Effective Transient
Thermal Impedance
Square Wave Pulse Duration (s)
Duty Cycle = 0.5
0.2
0.1
0.05
0.02
Single Pulse
t
1
t
2
Notes:
P
DM
1. Duty Cycle, D =
2. Per Unit Base=R
thJA
= 400 °C/W
3. T
JM
-T
A
=P
DM
Z
thJA
(t)
t
1
t
2
4. Surface Mounted