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STMicroelectronics Electronic Components Datasheet

STPS40120C Datasheet

Power Schottky rectifier

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STPS40120C
Power Schottky rectifier
Main product characteristics
IF(AV)
VRRM
Tj(max)
VF(typ)
2 x 20 A
120 V
175° C
0.57 V
A1
K
A2
KK
Feature and benefits
High junction temperature capability
Avalanche rated
Low leakage current
Good trade-off between leakage current and
forward voltage drop
A2
A1 K
TO-220AB
STPS40120CT
A2
A1 K
I2PAK
STPS40120CR
Description
Dual center tap Schottky rectifier suited for high
frequency Switch Mode Power Supply.
Packaged in TO-220AB and I2PAK, this device is
intended to be used in notebook and 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.
Order code
Part Number
STPS40120CT
STPS40120CR
Marking
STPS40120CT
STPS40120CR
Table 1. Absolute ratings (limiting values, per diode)
Symbol
Parameter
Value
VRRM
IF(RMS)
IF(AV)
Repetitive peak reverse voltage
RMS forward voltage
Average forward current
δ = 0.5
Tc = 145° C
Per diode
Per device
120
30
20
40
IFSM Surge non repetitive forward current
tp = 10 ms Sinusoidal
200
PARM Repetitive peak avalanche power
tp = 1 μs Tj = 25° C
10500
Tstg Storage temperature range
Tj Maximum operating junction temperature(1)
1.
d----P-----t--o----t
dTj
<
R-----t--h----(-1--j-------a----)
condition
to
avoid
runaway
for
a
diode
on
its
own
heatsink
-65 to + 175
175
Unit
V
A
A
A
W
°C
°C
December 2006
Rev 2
1/8
www.st.com
8


STMicroelectronics Electronic Components Datasheet

STPS40120C Datasheet

Power Schottky rectifier

No Preview Available !

Characteristics
1 Characteristics
STPS40120C
Table 2.
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Thermal parameters
Symbol
Parameter
Value
Rth(j-c)
Junction to case
Per diode
Total
1.6
0.85
Rth(c)
Coupling
Total
0.1
When the diodes 1 and 2 are used simultaneously :
ΔTj(diode 1) = P(diode 1) x Rth(j-c)(per diode) + P(diode 2) x Rth(c)
Table 3.
Symbol
Static electrical characteristics (per diode)
Test conditions
Min. Typ.
IR(1)
Reverse leakage current
Tj = 25° C
Tj = 125° C VR = VRRM
4
Tj = 25° C
IF = 7.5 A
Tj = 125° C
0.57
VF(2) Forward voltage drop
Tj = 25° C
IF = 20A
Tj = 125° C
0.69
Tj = 25° C
IF = 40 A
Tj = 125° C
0.83
1. Pulse test : tp = 5 ms, δ < 2%
2. Pulse test : tp = 380 μs, δ < 2%
To evaluate the maximum conduction losses use the following equation :
P = 0.58 x IF(AV) + 0.0075 IF2(RMS)
Unit
° C/W
° C/W
Max.
25
12
0.73
0.61
0.9
0.73
1
0.88
Unit
μA
mA
V
2/8


Part Number STPS40120C
Description Power Schottky rectifier
Maker STMicroelectronics
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