■ Low static and dynamic losses as a result of the
Schottky barrier
■ Avalanche specification
Description
Schottky barrier rectifier designed for high
frequency miniature switched mode power
supplies such as adaptators and on board dc/dc
converters. The device is packaged in TO-220AB,
2
I
PAK and TO-220FPAB.
A1
A2
K
A2
K
A1
TO-220AB
STPS20S100CT
K
TO-220FPAB
STPS20S100CFP
K
A1
I2PAK
STPS20S100CR
Table 1.Device summary
SymbolValue
I
F(AV)
V
RRM
T
j
(max)0.71 V
V
F
K
A2
A2
K
A1
2 x 10 A
100 V
175 °C
February 2010Doc ID 11281 Rev 21/9
www.st.com
9
Page 2
CharacteristicsSTPS20S100C
1 Characteristics
Table 2.Absolute ratings (limiting values, per diode)
SymbolParameterValueUnit
V
I
F(RMS)
I
F(AV)
I
P
T
dV/dtCritical rate of rise of reverse voltage10000V/µs
1. condition to avoid thermal runaway for a diode on its own heatsink
Table 3.Thermal resistance
SymbolParameterValueUnit
Repetitive peak reverse voltage100V
RRM
Forward rms current30A
2
Average forward
current δ = 0.5
Surge non repetitive forward currenttp = 10ms sinusoidal180A
To evaluate the conduction losses use the following equation: P = 0.62 x I
2/9Doc ID 11281 Rev 2
F(AV)
+ 0.009 I
F2(RMS)
Page 3
STPS20S100CCharacteristics
Figure 1.Average forward power dissipation
versus average forward current
(per diode)
P(W)
F(AV)
10
9
8
7
6
5
4
3
2
1
0
012345678 910111213
δ = 0.05
δ = 0.1
I(A)
F(AV)
δ = 0.2
δ = 0.5
δ
δ = 1
=tp/T
T
tp
Figure 3. Normalized avalanche power
derating versus pulse duration
P(t)
ARM p
P(1µs)
ARM
1
0.1
0.01
t(µs)
0.001
0.10.011
p
101001000
Figure 2.Average forward current versus
ambient temperature
(δ = 0.5, per diode)
I(A)
F(AV)
11
10
9
8
7
6
5
4
3
2
1
0
0255075100125150175
δ
=tp/T
T
tp
R =15°C/W
th(j-a)
T(°C)
amb
R=R
th(j-a) th(j-c)
I²PAK/TO-220AB
TO-220FPAB
Figure 4.Normalized avalanche power
derating versus junction
temperature
P
(Tj)
ARM
P
(25°C)
ARM
1.2
1
0.8
0.6
0.4
0.2
0
255075100125150
T(°C)
j
Figure 5.Non repetitive surge peak forward
current versus overload duration
(maximum values, per diode)
I (A)
M
180
160
140
120
100
80
60
40
IM
20
0
1.E-031.E-021.E-011.E+00
δ=0.5
t
t(s)
T =25°C
a
T =75°C
a
T =125°C
a
Doc ID 11281 Rev 23/9
Figure 6.Non repetitive surge peak forward
current versus overload duration
(maximum values, per diode)
I (A)
M
120
110
100
90
80
70
60
50
40
30
I
M
20
10
0
1.E-031.E-021.E-011.E+00
t
δ
=0.5
t(s)
TO-220FPAB
T =25°C
a
T =75°C
a
T =125°C
a
Page 4
CharacteristicsSTPS20S100C
Figure 7.Relative variation of thermal
impedance junction to case versus
pulse duration (per diode)
Z/R
th(j-c) th(j-c)
1.0
0.9
0.8
0.7
δ = 0.5
0.6
0.5
0.4
δ = 0.2
δ = 0.1
0.3
0.2
Single pulse
0.1
0.0
1.E-031.E-021.E-011.E+00
t (s)
p
δ
=tp/T
T
tp
Figure 9.Reverse leakage current versus
reverse voltage applied (typical
values, per diode)
I (mA)
R
1.E+01
T=150°C
j
1.E+00
1.E-01
1.E-02
1.E-03
V (V)
1.E-04
102030405060708090100
R
T=125°C
j
T=100°C
j
T=75°C
j
T=50°C
j
T=25°C
j
Figure 8.Relative variation of thermal
impedance junction to case versus
pulse duration (per diode)
(TO-220FPAB)
Z/R
th(j-c) th(j-c)
1.0
0.9
0.8
0.7
0.6
δ = 0.5
0.5
0.4
0.3
δ = 0.2
0.2
δ = 0.1
0.1
Single pulse
0.0
1.E-031.E-021.E-011.E+001.E+01
TO-220FPAB
t (s)
p
δ
T
=tp/T
Figure 10. Junction capacitance versus
reverse voltage applied (typical
values, per diode)
C(pF)
1000
100
V (V)
10
110100
R
F=1MHz
V =30mV
OSCRMS
T=25°C
tp
j
Figure 11. Forward voltage drop versus forward current (per diode)
I (A)
FM
100
T=125°C
j
(maximum values)
T=125°C
j
(typical values)
10
V (V)
1
0.00.20.40.60.81.01.21.4
FM
4/9Doc ID 11281 Rev 2
T=25°C
j
(maximum values)
Page 5
STPS20S100CPackage information
2 Package information
●Epoxy meets UL94, V0
●Cooling method: by conduction (C)
●Recommended torque value: 0.4 to 0.6 N·m
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com
ECOPACK
Table 5.TO-220FPAB dimensions
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
.
Dimensions
Ref.
MillimetersInches
Min.Max.Min.Max.
A4.44.60.1730.181
A
H
B
B2.52.70.0980.106
D2.52.750.0980.108
E0.450.700.0180.027
Dia
L6
L2
L3
L5
F1
L4
F2
F
G1
G
D
L7
E
F0.7510.0300.039
F11.151.700.0450.067
F21.151.700.0450.067
G4.955.200.1950.205
G12.42.70.0940.106
H1010.40.3930.409
L216 Typ.0.63 Typ.
L328.630.61.1261.205
L49.810.60.3860.417
L52.93.60.1140.142
L615.916.40.6260.646
L79.009.300.3540.366
Dia.3.003.200.1180.126
Doc ID 11281 Rev 25/9
Page 6
Package informationSTPS20S100C
Table 6.I2PAK dimensions
Dimensions
L2
Ref.
MillimetersInches
Min.Max.Min.Max.
A
E
c2
A4.404.600.1730.181
A12.402.720.0940.107
b0.610.880.0240.035
b11.141.700.0440.067
D
c0.490.700.0190.028
c21.231.320.0480.052
L1
L
b1
A1
D8.959.350.3520.368
e2.402.700.0940.106
e14.955.150.1950.203
E1010.400.3940.409
b
e
e1
c
L13140.5120.551
L13.503.930.1380.155
L21.271.400.0500.055
6/9Doc ID 11281 Rev 2
Page 7
STPS20S100CPackage information
Table 7.TO-220AB dimensions
Dimensions
L2
F2
F1
F
G1
H2
Dia
Ref.
MillimetersInches
Min.Max.Min.Max.
A4.404.600.1730.181
A
C
C1.231.320.0480.051
D2.402.720.0940.107
E0.490.700.0190.027
L5
L6
L7
F0.610.880.0240.034
F11.141.700.0440.066
F21.141.700.0440.066
G4.955.150.1940.202
L9
L4
D
G12.402.700.0940.106
H21010.400.3930.409
L216.4 typ.0.645 typ.
M
E
L413140.5110.551
L52.652.950.1040.116
G
L615.2515.750.6000.620
L76.206.600.2440.259
L93.503.930.1370.154
M2.6 typ.0.102 typ.
Diam.3.753.850.1470.151
Doc ID 11281 Rev 27/9
Page 8
Ordering informationSTPS20S100C
3 Ordering information
Table 8.Ordering information
Order codeMarkingPackageWeightBase qty Delivery mode
STPS20S100CTSTPS20S100CTTO-220AB2.20 g50Tube
STPS20S100CFPSTPS20S100CFPTO-220FPAB2 g50Tube
2
STPS20S100CRSTPS20S100CRI
PA K1. 4 9 g5 0Tu b e
4 Revision history
Table 9.Document revision history
DateRevisionChanges
16-Mar-20051First issue.
Added cathode indicator K to illustration of TO-220AB on
03-Feb-20102
cover page. Changed parameter in Tabl e 2 from “ RMS
forward voltage “ to “ Forward rms current “.
8/9Doc ID 11281 Rev 2
Page 9
STPS20S100C
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