ST STPS20120D User Manual
®
Table 1: Main Product Characteristics
I
V
T
j
V
F
F(AV)
RRM
(max)
(typ)
20 A
120 V
175°C
0.54 V
FEATURES AND BENEFITS
■ High junction temperature capability
■ Avalanche rated
■ Low leakage current
■ Good trade-off between leakage current and
forward voltage drop
DESCRIPTION
Single Schottky rectifier suited for high frequency
Switch Mode Power Supply.
Packaged in TO-220AC, this device is intended to
be used in notebook & LCD adaptors, desktop
SMPS, providing in these applications a margin
between the remaining voltages applied on the
diode and the voltage capability of the diode.
STPS20120D
POWER SCHOTTKY RECTIFIER
A
K
TO-220AB
STPS20120D
Table 2: Order Code
Part Number Marking
STPS20120D STPS20120D
K
A
K
Table 3: Absolute Ratings (limiting values)
Symbol Parameter Value Unit
V
RRM
I
F(RMS)
I
F(AV)
I
FSM
P
ARM
T
T
dPtot
* : thermal runaway condition for a diode on its own heatsink
------------- --
dTj
February 2004
Repetitive peak reverse voltage 120 V
RMS forward voltage 30 A
Average forward current
Surge non repetitive forward current
Repetitive peak avalanche power
Storage temperature range -65 to + 175 °C
stg
Maximum operating junction temperature * 175 °C
j
1
--------------- ----------->
Rth j a
–()
δ = 0.5 T
t
= 10ms sinusoidal
p
t
= 1µs Tj = 25°C
p
REV. 1
= 130°C
c
200 A
8600 W
20 A
1/6
STPS20120D
Table 4: Thermal Parameters
Symbol Parameter Value Unit
R
th(j-c)
Junction to case
2.2
°C/W
Table 5: Static Electrical Characteristics
Symbol Parameter Tests conditions Min. Typ Max. Unit
= 25°C
T
I
*
R
V
F
Pulse test: * tp = 5 ms, δ < 2%
To evaluate the conduction losses use the following equation: P = 0.56 x I
Reverse leakage current
**
Forward voltage drop
** tp = 380 µs,
δ < 2%
j
= 125°C
T
j
= 25°C
T
j
T
= 125°C
j
T
= 25°C
j
T
= 125°C
j
T
= 25°C
j
T
= 125°C
j
V
R
I
F
I
F
I
F
= V
= 5A
= 10A
= 20A
F(AV)
RRM
+ 0.010 I
310
0.54 0.58
0.62 0.66
0.72 0.76
F2(RMS)
20
0.7
0.8
0.93
µA
mA
V
2/6
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