STPS40SM120C
Datasheet
120 V power Schottky rectifier
A1
A2
K
I²PAK
A1
K
A2
A1
K
A2
TO-220AB
Product status link
STPS40SM120C
Product summary
Symbol
I
F(AV)
V
RRM
T j
(max.)
V
F
(typ.)
Value
2 x 20 A
120 V
150 °C
0.63 V
Features
• High current capability
• Avalanche rated
• Low forward voltage drop current
• High frequency operation
• ECOPACK ® 2 compliant
Applications
• Switching diode
• SMPS
• DC/DC converter
• LED lighting
• Notebook adapter
Description
This Schottky rectifier is suited for high frequency switch mode power supply.
The voltage drop versus leakage current trade-off is in keeping with medium power hi-density adapter design.
Packed in TO-220AB and I 2 PAK, the STPS40SM120C is optimized for use in notebook, game station and desktop adaptors, providing in these applications a good efficiency at both low and high load.
DS8940 - Rev 4 - June 2018
For further information contact your local STMicroelectronics sales office.
www.st.com
1
DS8940 - Rev 4
STPS40SM120C
Characteristics
Characteristics
Table 1. Absolute Ratings (limiting values, per diode, at 25 °C, unless otherwise specified)
Symbol
V
RRM
I
F(RMS)
Repetitive peak reverse voltage
Forward rms current
Parameter
I
F(AV)
I
FSM
P
ARM
T stg
T j
Average forward current, δ = 0.5
Surge non repetitive forward current
Repetitive peak avalanche power
Storage temperature range
Maximum operating junction temperature
(1)
T
C
= 125 °C
T
C
= 115 °C t p t p
= 10 ms sinusoidal
= 10 µs , T j
Per diode
Per device
= 125 °C
1. (dP tot
/dT j
) < (1/R th(j-a)
) condition to avoid thermal runaway for a diode on its own heatsink.
Value
120
30
20
40
210
1150
-65 to +175
150
Unit
V
A
A
A
W
°C
°C
Symbol
R th(j-c)
R th(c)
Junction to case
Table 2. Thermal resistance parameters
Parameter
Per diode
Total
Coupling
Value
1.35
0.93
0.50
Unit
°C/W
When the diodes 1 and 2 are used simultaneously:
ΔT j (diode1)
= P
(diode1)
x R th(j-c)
(per diode) + P
(diode2)
x R th(c)
For more information, please refer to the following application note :
• AN5088 : Rectifiers thermal management, handling and mounting recommendations
Symbol
I
R
(1)
V
F
(2)
Table 3. Static electrical characteristics (per diode)
Parameter
Reverse leakage current
Forward voltage drop
Test conditions
T j
= 25 °C
T j
= 125 °C
T j
= 125 °C
T j
= 125 °C
T j
= 25 °C
T j
= 125 °C
I
I
I
V
F
F
F
R
= V
RRM
= 5 A
= 10 A
= 20 A
-
-
-
-
Min.
-
-
1. Pulse test: t p
= 5 ms, δ < 2%
2. Pulse test: t p
= 380 µs, δ < 2%
Typ.
55
20
0.46
0.55
0.63
To evaluate the conduction losses, use the following equation: P = 0.52 x I
F(AV)
+ 0.0085 x I
F
2
(RMS)
For more information, please refer to the following application notes related to the power losses :
• AN604: Calculation of conduction losses in a power rectifier
• AN4021: Calculation of reverse losses on a power diode
Max.
275
50
0.51
0.60
0.83
0.69
Unit
µA mA
V page 2/11
STPS40SM120C
Characteristics (curves)
1.1
Characteristics (curves)
Figure 1. Average forward power dissipation versus average forward current (per diode)
P
F(AV)
(W)
20
δ=0.5
δ=1
16 δ=0.2
δ=0.1
δ=0.05
12
8
4
0
0 4 8
I
F(AV)
(A)
1 2 1 6
T
2 0
δ =tp/T
2 4 tp
28
Figure 2. Average forward current versus ambient temperature (δ = 0.5, per diode)
24
I
F(AV)
(A)
R th(j-a)
=R th(j-c)
20
16
12
8
T
4
0
0
δ =tp/T
2 5 tp
5 0
T amb
(°C)
7 5 1 00 125 150
Figure 3. Normalized avalanche power derating versus pulse duration (T j
= 125 °C)
1
P
ARM
(tp)
P
ARM
(10 µs)
0.1
0.01
0.001
1 10 100 1000
Figure 4. Relative variation of thermal impedance junction to case versus pulse duration
1.0
Z th(j-c)
/ R th(j-c)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.E-04
Single pulse
1.E-03 1.E-02 1.E-01 1.E+00
DS8940 - Rev 4 page 3/11
STPS40SM120C
Characteristics (curves)
Figure 5. Reverse leakage current versus reverse voltage applied (typical values, per diode) Figure 6. Junction capacitance versus reverse voltage applied (typical values, per diode)
1.E+02
I
R
(mA)
1.E+01
1.E+00
1.E-01
T j
=150 °C
T j
=125 °C
T j
=100 °C
T j
=75 °C
T j
=50 °C
T j
=25 °C
1.E-02
V
R
(V)
1.E-03
0 1 0 2 0 3 0 4 0 5 0 6 0 70 80 9 0 100 110 120
10000
C(pF)
1000
100
1 1 0 100
F=1 MHz
V osc
T
=30 mV
RMS j
=25 °C
V
R
(V)
1000
Figure 7. Forward voltage drop versus forward current (per diode)
1000.0
I
F
(A)
T j j
=125 °C
Maximum values
100.0
T j j
=125 °C
Typical values
10.0
T j
=25 °C
Maximum values
1.0
0.1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
DS8940 - Rev 4 page 4/11
2
2.1
STPS40SM120C
Package information
Package information
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.
•
•
•
•
TO-220AB package information
Epoxy meets UL 94,V0
Cooling method: by conduction (C)
Recommended torque value: 0.55 N·m
Maximum torque value: 0.70 N·m
Figure 8. TO-220AB package outline
DS8940 - Rev 4 page 5/11
DS8940 - Rev 4
Ref.
H1
J1
L
L1
L20
L30
θP
Q
D1
E e e1
F
A b b1 c
D
STPS40SM120C
TO-220AB package information
Table 4. TO-220AB package mechanical data
Dimensions
Min.
4.40
0.61
1.14
0.48
15.25
10.00
2.40
4.95
1.23
6.20
2.40
13.00
3.50
3.75
2.65
Millimeters
1.27 typ.
16.40 typ.
28.90 typ.
Max.
4.60
0.88
1.55
0.70
15.75
10.40
2.70
5.15
1.32
6.60
2.72
14.00
3.93
3.85
2.95
0.394
0.094
0.195
0.048
0.244
0.094
0.512
0.138
Inches (for reference only)
Min.
Max.
0.173
0.240
0.045
0.019
0.600
0.181
0.035
0.061
0.028
0.620
0.050 typ.
0.409
0.106
0.203
0.052
0.260
0.107
0.551
0.155
0.646 typ.
1.138 typ.
0.148
0.104
0.152
0.116
page 6/11
2.2
•
•
I²PAK package information
Epoxy meets UL 94,V0
Cooling method: by conduction (C)
Figure 9. I²PAK package outline
STPS40SM120C
I²PAK package information
DS8940 - Rev 4 page 7/11
Ref.
c2
D e e1
E
L
L1
L2
A
A1 b b1 c
STPS40SM120C
I²PAK package information
Table 5. I²PAK package mechanical data
Dimensions
Millimeters
Min.
1.23
8.95
2.40
4.95
10.00
4.40
2.40
0.61
1.14
0.49
13.00
3.50
1.27
Max.
1.32
9.35
2.70
5.15
10.40
4.60
2.72
0.88
1.70
0.70
14.00
3.93
1.40
Inches (for reference only)
Min.
Max.
0.048
0.352
0.094
0.195
0.394
0.173
0.094
0.024
0.044
0.019
0.512
0.138
0.050
0.052
0.368
0.106
0.203
0.409
0.181
0.107
0.035
0.067
0.028
0.551
0.155
0.055
DS8940 - Rev 4 page 8/11
3
STPS40SM120C
Ordering information
Ordering information
Order code
STPS40SM100CT
STPS40SM100CR
Table 6. Ordering information
Marking
PS40SM100CT
PS40SM100CR
Package
TO-220AB
I 2 PAK
Weight
1.95 g
1.50 g
Base qty.
50
50
Delivery mode
Tube
Tube
DS8940 - Rev 4 page 9/11
STPS40SM120C
Revision history
Date
02-Apr-2012
04-Nov-2014
11-Apr-2017
27-Jun-2018
3
4
Table 7. Document revision history
Version
1
2
Changes
First issue.
Added TO-220AB and TO-220FPAB package information.
Updated Section 1: "Characteristics" and Section 1.1: "Characteristics
(curves)".
Updated Table 1. Absolute Ratings (limiting values, per diode, at 25 °C, unless otherwise specified) and
Figure 3. Normalized avalanche power derating versus pulse duration (T j
package information.
= 125 °C) . Removed TO-220AB narrow leads
DS8940 - Rev 4 page 10/11
STPS40SM120C
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DS8940 - Rev 4 page 11/11
