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Document Number: 73899
S09-0766-Rev. B, 04-May-09
Vishay Siliconix
Si3437DV
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 www.vishay.com/ppg?73899
.
Normalized Thermal Transient Impedance, Junction-to-Ambient
10
-3
10
-2
10
-1
100
Square Wave Pulse Duration (s)
10
1000
1
0.1
0.01
t n e i s n a r T e v i t c e f f E d e z i l a m r o N
e c n a d e p m I l a m r e h T
1
10
-4
1. Duty Cycle, D =
2. Per Unit Base = R
thJA
= 75 °C
3. T
JM
– T = P
DM
Z
thJA
(t)
t
1
t
2
4. Surface Mounted
Notes:
t
1
P
DM
t
2
0.2
0.1
0.05
0.02
Single Pulse
Duty Cycle = 0.5
Normalized Thermal Transient Impedance, Junction-to-Foot
10
-3
10
-2
1 10 10
-1
10
1
0.1
0.01
Square Wave Pulse Duration (s)
t n e i s n a r
T
e v
i
t
c e f
f E
d
e
z i
l
a m
r
o N
e c n a d e p m I
l
a m r e h T
-4
0.2
0.1
0.05
0.02
Single Pulse
Duty Cycle = 0.5