Vishay Siliconix
SiA811DJ
Document Number: 74460
S-80436-Rev. B, 03-Mar-08
www.vishay.com
9
New Product
SCHOTTKY TYPICAL CHARACTERISTICS T
A
= 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 http://www.vishay.com/ppg?74460.
Normalized Thermal Transient Impedance, Junction-to-Ambient
10
-3
10
-2
000101110
-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
= 85 °C/W
3. T
JM
- T
A
= P
DM
Z
thJA
(t)
t
1
t
2
4. Surface Mounted
Duty Cycle = 0.5
0.05
0.02
Single Pulse
Normalized Thermal Transient Impedance, Junction-to-Case
Duty Cycle = 0.5
Square Wave Pulse Duration (s)
Normalized Effective Transient
Thermal Impedance
1
0.1
1
Single Pulse
0.05
0.02
0.1
0.2
10
-3
10
-2
10
-1
