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Features
High junction temperature capability
Good trade-off between leakage current and forward voltage drop
Low leakage current
Avalanche capability specified
ECOPACK ® 2 compliant component for DPAK on demand
STPS20120C
Power Schottky rectifier
Datasheet
-
production data
Description
This dual diode Schottky rectifier is suited for high frequency switched mode power supplies.
Packaged in DPAK, TO-220AB, TO-220AB narrow leads 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.
Table 1. Device summary
Symbol Value
I
F(AV)
V
RRM
T j
(max)
V
F
(typ)
2 X 10 A
120 V
175 °C
0.70 V
November 2016
This is information on a product in full production.
DocID11212 Rev 4 1/14 www.st.com
Characteristics
1 Characteristics
STPS20120C
Table 2. Absolute ratings (limiting values per diode at T amb
= 25 °C unless otherwise stated)
Symbol Parameter Value Unit
V
RRM
I
F(RMS)
Repetitive peak reverse voltage
Forward rms current
1.
I
F(AV)
Average forward current,
= 0.5, square wave
T c
= 150 °C per diode
T c
= 145 °C per device
I
FSM
P
ARM
T stg
T j
Surge non repetitive forward current
Repetitive peak avalanche power
Storage temperature range
Maximum operating junction temperature (1) t t p p
= 10 ms sinusoidal
= 10 µs, T dPtot dTj
<
1
Rth(j-a)
condition to avoid thermal runaway for a diode on its own heatsink j
= 125 °C
120
30
10
20
A
150
330
A
W
-65 to +175 °C
175 °C
V
A
Symbol
Table 3. Thermal parameters
Parameter
R th(j-c)
Junction to case
R th(c)
Coupling per diode total
Max. value Unit
3
1.8
0.6
°C/W
When the two diodes 1 and 2 are used simultaneously:
T j
(diode1) = P(diode1) x R th(j-c)
(per diode) + P(diode2) x R th(c)
Symbol
I
R
(1)
V
F
(2)
Table 4. Static electrical characteristics (per diode)
Parameter Test conditions Min.
Typ
Reverse leakage current
Forward voltage drop
T j
= 25 °C
T j
= 125 °C
T j
= 25 °C
T j
= 125 °C
T j
= 25 °C
T j
= 125 °C
T j
= 25 °C
T j
= 125 °C
V
R
= V
RRM
I
F
= 2.5 A
I
F
= 10 A
I
F
= 20 A
-
-
-
-
-
-
-
-
1.5
0.54
0.70
0.81
1. Pulse test: t p
= 5 ms, < 2%
2. Pulse test: t p
= 380 µs, < 2%
To evaluate the conduction losses, use the following equation:
P = 0.62 x I
F(AV)
+ 0.012 x I
F
2
(RMS)
Max.
10
5
0.70
0.58
0.92
0.74
1.02
0.86
Unit
µA mA
V
2/14 DocID11212 Rev 4
STPS20120C
Figure 1. Average forward power dissipation versus average forward current (per diode)
3
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Characteristics
Figure 2. Average forward current versus ambient temperature ( δ
= 0.5, per diode)
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Figure 3. Normalized avalanche power derating versus pulse duration (T j
= 125 °C)
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Figure 4. Relative variation of thermal impedance junction to case versus pulse duration
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Figure 5. Reverse leakage current versus reverse voltage applied
(typical values, per diode)
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Figure 6. Junction capacitance vs. reverse voltage applied (typical values, per diode)
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DocID11212 Rev 4 3/14
14
Characteristics STPS20120C
Figure 7. Forward voltage drop versus forward current (per diode)
Figure 8. Thermal resistance junction to ambient versus copper surface under tab
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4/14 DocID11212 Rev 4
STPS20120C Package information
2.1
Epoxy meets UL94, V0
Cooling method: by conduction (C)
Recommended torque value: 0.55 N·m (TO-220AB, TO-220AB narrow leads)
Maximum torque value: 0.7 N·m (TO-220AB, TO-220AB narrow leads)
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
® specifications, grade definitions and product status are available at: www.st.com
.
ECOPACK
®
is an ST trademark.
DPAK package information
Figure 9. DPAK package outline
(
E
F
$
7KHUPDOSDG
(
/
Note:
'
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+
/
5
H
H
E
$
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5
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9
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SODQH
This package drawing may slightly differ from the physical package. However, all the specified dimensions are guaranteed.
DocID11212 Rev 4 5/14
14
Ref.
e e1
H
L
L2
D1
E
E1
L4
V2 b4 c c2
D
A
A1
A2 b
Package information
Min.
4.95
0.46
0.46
5.97
2.18
0.90
0.03
0.64
4.95
6.35
4.32
4.40
9.35
1.00
0.60
-8°
Table 5. DPAK package mechanical data
Dimensions
Millimeters Inches
Typ.
Max.
5.46
0.61
0.60
6.22
2.40
1.10
0.23
0.90
5.60
6.73
5.50
Min.
0.085
0.035
0.001
0.025
0.194
0.018
0.018
0.235
0.194
0.250
0.170
Typ.
2.28
0.090
4.70
10.40
1.78
1.27
1.02
+8°
0.173
0.368
0.039
0.023
-8°
Figure 10. Footprint (dimensions in mm)
STPS20120C
Max.
0.094
0.043
0.009
0.035
0.214
0.024
0.023
0.244
0.220
0.264
0.216
0.185
0.409
0.070
0.050
0.040
8°
$
6/14
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DocID11212 Rev 4
STPS20120C
2.2 I²PAK package information
Figure 11. I²PAK package outline
Package information
$
( F
/
'
/
$
E
/
H
H
E F
DocID11212 Rev 4 7/14
14
Package information
Ref.
e1
E
L
L1
L2
D e c c2
A
A1 b b1
Min.
4.95
10.00
13.00
3.50
1.27
0.49
1.23
8.95
2.40
4.40
2.40
0.61
1.14
Table 6. I²PAK package mechanical data
Dimensions
Millimeters Inches
Typ.
Max.
5.15
10.40
14.00
3.93
1.40
0.70
1.32
9.35
2.70
4.60
2.72
0.88
1.70
Min.
0.195
0.394
0.512
0.138
0.050
0.173
0.094
0.024
0.044
0.019
0.048
0.352
0.094
Typ.
STPS20120C
Max.
0.203
0.409
0.551
0.155
0.055
0.181
0.107
0.035
0.067
0.028
0.052
0.368
0.106
8/14 DocID11212 Rev 4
STPS20120C
/
)
)
)
*
*
Package information
Figure 12. TO-220AB package outline
+
'L D
/
/
&
$
/
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/
/
0
(
DocID11212 Rev 4 9/14
14
Package information
Ref.
Min.
L4
L5
L6
L7
L9
G1
H2
L2
M
Diam.
F
F1
F2
G
D
E
A 4.40
C 1.23
2.40
0.49
0.61
1.14
1.14
4.95
2.40
10.00
3.75
13.00
2.65
15.25
6.20
3.50
Table 7. TO-220AB package mechanical data
Dimensions
Millimeters Inches
Typ.
16.4 typ.
2.6 typ.
Max.
0.88
1.70
1.70
5.15
4.60
1.32
2.72
0.70
2.70
10.40
14.00
2.95
15.75
6.60
3.93
3.85
Min.
0.173
0.048
0.094
0.019
0.024
0.044
0.044
0.194
0.094
0.393
0.511
0.104
0.600
0.244
0.137
0.147
Typ.
0.645 typ.
0.102 typ.
STPS20120C
0.551
0.116
0.620
0.259
0.154
0.151
Max.
0.181
0.051
0.107
0.027
0.034
0.066
0.066
0.202
0.106
0.409
10/14 DocID11212 Rev 4
STPS20120C
2.4
Package information
TO-220AB narrow leads package information
Figure 13. TO-220AB narrow leads package outline
/
E[
(
H
H
E[
4
3
)
+
'
'
/
/
$
-
/
&
DocID11212 Rev 4 11/14
14
L20
L30
P
Q
J1
L
L1 e1
F
H1
D
D1
E e b1 c
A b
Package information
Ref.
10.00
2.40
4.95
1.23
6.20
2.40
13.00
2.60
Table 8. TO-220AB narrow leads package mechanical data
Dimensions
Millimeters Inches
Min.
4.40
0.61
0.95
0.48
15.25
Typ.
Max.
4.60
0.88
1.20
0.70
15.75
Min.
0.173
0.024
0.037
0.019
0.600
Typ.
1.27
0.050
10.40
2.70
5.15
1.32
6.60
2.72
14.00
2.90
0.393
0.094
0.194
0.048
0.244
0.095
0.511
0.102
15.40
28.90
0.606
1.137
3.75
2.65
3.85
2.95
0.147
0.104
STPS20120C
Max.
0.181
0.034
0.047
0.027
0.620
0.409
0.106
0.202
0.052
0.259
0.107
0.551
0.114
0.151
0.116
12/14 DocID11212 Rev 4
STPS20120C Ordering information
Ordering type
STPS20120CT
STPS20120CR
STPS20120CB-TR
STPS20120CTN
Table 9. Ordering information
Marking Package Weight
STPS20120CT
STPS20120CR
PS20 120CB
STPS20120CTN
TO-220AB
I 2 PAK
DPAK
TO-220AB narrow leads
1.9 g
1.5 g
0.32 g
1.9 g
Base qty Delivery mode
50
50
2500
Tube
Tube
Tape and reel
50 Tube
Date
18-Feb-2005
03-May-2007
15-Jun-2012
02-Nov-2016
Table 10. Document revision history
Revision Changes
1
2
3
4
First issue
Reformatted to current standards. Added TO-220FPAB package.
Added TO-220 narrow leads package.
Added DPAK package and removed TO-220FPAB package.
Reformatted to current standard.
DocID11212 Rev 4 13/14
14
STPS20120C
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14/14 DocID11212 Rev 4
