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STPS20L15DPbF
Vishay High Power Products
Schottky Rectifier, 20 A
www.datasheet4u.com
Base
cathode
TO-220AC
13
Cathode Anode
PRODUCT SUMMARY
IF(AV)
VR
IRM
20 A
15 V
600 mA at 100 °C
FEATURES
• 125 °C TJ operation (VR < 5 V)
• Center tap module
Pb-free
• Optimized for OR-ing applications
• Ultra low forward voltage drop
• High frequency operation
Available
RoHS*
COMPLIANT
• Guard ring for enhanced ruggedness and long term
reliability
• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
• Lead (Pb)-free (“PbF” suffix)
• Designed and qualified for industrial level
DESCRIPTION
The Schottky rectifier module has been optimized for ultra
low forward voltage drop specifically for the OR-ing of
parallel power supplies. The proprietary barrier technology
allows for reliable operation up to 125 °C junction
temperature. Typical applications are in parallel switching
power supplies, converters, reverse battery protection, and
redundant power subsystems.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
CHARACTERISTICS
IF(AV)
Rectangular waveform
VRRM
IFSM
tp = 5 µs sine
VF 19 Apk, TJ = 125 °C (typical)
TJ Range
VALUES
20
15
700
0.25
- 55 to 125
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
VR
VRWM
TEST CONDITIONS
TJ = 100 °C
STPS20L15DPbF
15
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Maximum average forward current
See fig. 5
IF(AV)
Maximum peak one cycle
non-repetitive surge current
See fig. 7
IFSM
Non-repetitive avalanche energy
EAS
Repetitive avalanche current
IAR
TEST CONDITIONS
VALUES
50 % duty cycle, TC = 85 °C, rectangular waveform
20
5 µs sine or 3 µs rect. pulse
10 ms sine or 6 ms rect. pulse
Following any rated load
condition and with rated
VRRM applied
TJ = 25 °C, IAS = 2 A, L = 6 mH
Current decaying linearly to zero in 1 µs
Frequency limited by TJ maximum VA = 1.5 x VR typical
700
330
10
2
UNITS
A
A
mJ
A
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 94325
Revision: 15-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
1

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STPS20L15DPbF
Vishay High Power Products Schottky Rectifier, 20 A
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
www.datasheet4u.com
Forward voltage drop
See fig. 1
VFM (1)
Reverse leakage current
See fig. 2
Threshold voltage
Forward slope resistance
Maximum junction capacitance
Typical series inductance
Maximum voltage rate of change
Note
(1) Pulse width < 300 µs, duty cycle < 2 %
IRM (1)
VF(TO)
rt
CT
LS
dV/dt
19 A
40 A
19 A
40 A
TJ = 25 °C
TJ = 100 °C
TEST CONDITIONS
TJ = 25 °C
TJ = 125 °C
VR = Rated VR
TJ = TJ maximum
VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C
Measured lead to lead 5 mm from package body
Rated VR
TYP. MAX.
- 0.41
- 0.52
0.25 0.33
0.37 0.50
- 10
- 600
0.182
7.6
- 2000
8-
10 000
UNITS
V
mA
V
mΩ
pF
nH
V/µs
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
SYMBOL
TEST CONDITIONS
Maximum junction temperature range
TJ
Maximum storage temperature range
Maximum thermal resistance,
junction to case
TStg
RthJC
DC operation
See fig. 4
Typical thermal resistance,
case to heatsink
RthCS
Mounting surface, smooth and greased
(For TO-220)
Maximum thermal resistance,
junction to ambient
RthJA
DC operation
(For D2PAK)
Approximate weight
Mounting torque
Marking device
minimum
maximum
Non-lubricated threads
Case style TO-220AC
VALUES
- 55 to 125
- 55 to 150
1.5
UNITS
°C
0.50 °C/W
40
2g
0.07 oz.
6 (5)
12 (10)
kgf · cm
(lbf · in)
STPS20L15D
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2
For technical questions, contact: diodes-tech@vishay.com
Document Number: 94325
Revision: 15-Aug-08

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STPS20L15DPbF
Schottky Rectifier, 20 A Vishay High Power Products
1000
www.datasheet4u.com
100
10
TJ = 125 °C
TJ = 75 °C
TJ = 25 °C
1
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
VFM - Forward Voltage Drop (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
10 000
1000
100
10
1
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
0.1
0 3 6 9 12 15
VR - Reverse Voltage (V)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
1000
TJ = 25 °C
100
0
5 10 15 20
VR - Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
10
1
0.1
0.01
0.00001
Single pulse
(thermal resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
t
1
t
2
Notes:
1. Duty factor D = t1/t2 .
2. Peak TJ = PDM x ZthJC + TC
0.0001
0.001
0.01
0.1
1
t1 - Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics
10
100
Document Number: 94325
Revision: 15-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
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STPS20L15DPbF
Vishay High Power Products Schottky Rectifier, 20 A
100
95
www.datasheet4u.c9o0m Square wave (D = 0.50)
85
80
75
See note (1)
70
048
12 16 20 24
IF(AV) - Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
1000
14
D = 0.20
12 D = 0.25
D = 0.33
10 D = 0.50
D = 0.75
8
6
RMS limit
4
DC
2
0
0 5 10 15 20 25 30
IF(AV) - Average Forward Current (A)
Fig. 6 - Forward Power Loss Characteristics
At any rated load condition
and with rated VRRM applied
following surge
100
10 100 1000
10 000
tp - Square Wave Pulse Duration (µs)
Fig. 7 - Maximum Non-Repetitive Surge Current
D.U.T.
Current
monitor
L
IRFP460
Rg = 25 Ω
High-speed
switch
Freewheel
diode
+ Vd = 25 V
40HFL40S02
Fig. 8 - Unclamped Inductive Test Circuit
Note
(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;
Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);
PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated VR
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For technical questions, contact: diodes-tech@vishay.com
Document Number: 94325
Revision: 15-Aug-08

No Preview Available !

STPS20L15DPbF
Schottky Rectifier, 20 A Vishay High Power Products
ORDERING INFORMATION TABLE
www.datasheet4u.com
Device code STPS 20 L 15 D PbF
1 2 3 456
1 - Schottky STPS series
2 - Current rating (20 = 20 A)
3 - L = Low voltage drop
4 - Voltage rating (15 = 15 V)
5 - D = Essential part number
6 - None = Standard production
PbF = Lead (Pb)-free
Tube standard pack quantity: 50 pieces
Dimensions
Part marking information
SPICE model
LINKS TO RELATED DOCUMENTS
http://www.vishay.com/doc?95221
http://www.vishay.com/doc?95224
http://www.vishay.com/doc?95305
Document Number: 94325
Revision: 15-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
5