Vishay STPS40L15CW Data Sheet
I
F(AV)
Rectangular 40 A
waveform
V
RRM
15 V
I
FSM
@ tp = 5 µs sine 700 A
V
F
@
19 Apk, T
J
= 125°C 0.25 V
(per leg, Typical)
T
J
- 55 to 125 °C
Characteristics Value Units
Major Ratings and Characteristics
SCHOTTKY RECTIFIER
2 x 20 Amp s
STPS40L15CW
Bulletin PD-20622 rev. A 08/03
1
www.irf.com
The STPS40L15CW center tap 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 protec-
tion, and redundant power subsystems.
125°C T
J
operation (V
R
< 5V)
Center tap module
Optimized for OR-ing applications
Ultra low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Description/ Features
TO-247AC
Dimensions in millimeters and inches
Conform to JEDEC outline TO-247AC (TO-3P)
15.90 (0 .626 )
15.30 (0 .602 )
14. 20 ( 0 . 559 )
14. 80 ( 0.583)
3.70 (0 .14 5)
4. 30 ( 0 .1 7 0)
5.30 (0.208)
5.70 (0 .22 5)
5.50 (0.217)
4.50 (0 .17 7)
(2 PLCS.)
3. 55 ( 0 .1 3 9)
3.65 (0 .14 4)
2. 20 ( 0 .0 8 7)
MAX.
1.00 (0 .03 9)
1.40 (0 .05 6)
0.40 (0 .21 3)
0.80 (0.032)
4.70 (0.185)
5.30 (0 .20 9)
1.5 (0.059)
2.5 (0.098)
2. 40 ( 0 .0 9 5)
MAX.
10.86 (0 .427 )
10.94 ( 0.430)
20.30 (0 .800 )
19.70 (0 .775 )
DIA.
123
2
BASE
COMMON
CATHODE
123
ANODE
COMMON
CATHODE
A
NODE
12
STPS40L15CW
Bulletin PD-20622 rev. A 08/03
2
www.irf.com
I
F(AV)
Max. Average Forward (Per Leg) 20 A 50% duty cycle @ T
C
= 86°C, rectangular wave form
Current * See Fig. 5 (Per Device) 40
I
FSM
Max. Peak One Cycle Non-Repetitive 700 5µs Sine or 3µs Rect. pulse
Surge Current (Per Leg) * See Fig. 7 330 10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy 10 mJ T
J
= 25 °C, I
AS
= 2 Amps, L = 5 mH
(Per Leg)
I
AR
Repetitive Avalanche Current 2 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Part number STPS40L15CW
V
R
Max. DC Reverse Voltage (V) @ T
J
= 100 °C
V
RWM
Max. Working Peak Reverse Voltage (V) @ T
J
= 100 °C
15
T
J
Max. Junction Temperature Range -55 to 125 °C
T
stg
Max. Storage Temperature Range -55 to 150 °C
R
thJC
Max. Thermal Resistance Junction 1.4 °C/W DC operation * See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction 0.7 °C/W DC operation
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case 0.24 °C/W Mounting surface , smooth and greased
to Heatsink
wt Approximate Weight 6 (0.21) g (oz.)
T Mounting Torque Min. 6 (5) Non-lubricated threads
Max. 12 (10)
Case Style TO-247AC (TO-3P) JEDEC
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
Parameters Value Units Conditions
Absolute Maximum Ratings
Following any rated
load condition and with
rated V
RRM
applied
Parameters Value Units Conditions
A
Typ. Max.
V
FM
Forward Voltage Drop 0.41 V @ 19A
(Per Leg) * See Fig. 1 (1) 0.52 V @ 40A
0.25 0.33 V @ 19A
0.37 0.50 V @ 40A
I
RM
Reverse Leakage Current - 10 mA T
J
= 25 °C
(Per Leg) * See Fig. 2 (1) - 600 mA T
J
= 100 °C
V
F(TO)
Threshold Voltage 0.182 V T
J
= T
J
max.
r
t
Forward Slope Resistance 7.6 m Ω
C
T
Max. Junction Capacitance(Per Leg) - 2000 pF V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
L
S
Typical Series Inductance (Per Leg) 8 - nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change 10000 V/ µs
(Rated V
R
)
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
Parameters Value Units Conditions
(1) Pulse Width < 300µs, Duty Cycle <2%
Voltage Ratings
Electrical Specifications
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