Si4840BDY
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Vishay Siliconix
S17-1827-Rev. D, 11-Dec-17
6
Document Number: 69795
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TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)
Normalized Thermal Transient Impedance, Junction-to-Ambient
Normalized Thermal Transient Impedance, Junction-to-Foot
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reliability data, see www.vishay.com/ppg?69795
.
10
-3
10
-2
1 10 60010
-1
10
-4
100
2
0.1
0.01
0.2
0.1
0.05
0.02
Single pulse
Duty cycle = 0.5
Square Wave Pulse Duration (s)
Normalized Effective Transient
Thermal Impedance
1. Duty cycle, D =
2. Per unit base = R
thJA
= 68 °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
1
10
-3
10
-2
1010
-1
10
-4
2
0.1
0.01
0.2
0.1
0.05
0.02
Single pulse
Duty cycle = 0.5
Square Wave Pulse Duration (s)
Normalized Effective Transient
Thermal Impedance
1
1