Vishay STPS40L45CW Data Sheet
A
Bulletin PD-20621 05/01
STPS40L45CW
SCHOTTKY RECTIFIER
Major Ratings and Characteristics
Characteristics Value Units
I
Rectangular 40 A
F(AV)
waveform
V
RRM
I
@ tp = 5 µs sine 1240 A
FSM
VF@ 20 Apk, TJ=125°C 0.42 V
(per leg, Typical)
T
J
15.90 (0 .626)
15.30 (0 .602)
20.30 (0 .800)
19.70 (0 .775)
12 3
14. 80 ( 0.583)
14. 20 (0 .559 )
1.40 (0 .056)
1.00 (0 .039)
10.94 ( 0.430)
10.86 (0 .427)
45 V
- 55 to 150 °C
3.65 (0 .144)
3. 55 (0 .13 9)
5.70 (0 .225)
5.30 (0.208)
4.30 (0 .170)
3.70 (0 .145)
2. 20 (0 .08 7)
MAX.
DIA.
5.50 (0.217)
4.50 (0 .177)
(2 PLCS.)
2 x 20 Amps
TO-247AC
Description/Features
The STPS40L45CW center tap Schottky rectifier has been
optimized for very low forward voltage drop, with moderate
leakage. The proprietary barrier technology allows for reliable
operation up to 150° C junction temperature. Typical applications are in switching power supplies.
150° C TJ operation
Center tap TO-247 package
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
5.30 (0 .209)
4.70 (0. 185)
0.80 (0.032)
0.40 (0 .213)
Conform to JEDEC outline TO-247AC (TO-3P)
Dimensions in millimeters and inches
2.5 ( 0.098 )
1.5 (0. 059)
2. 40 (0 .09 5)
MAX.
BASE
COMMON
CATHODE
2
123
NODE
COMMON
ANODE
CATHODE
12
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1
STPS40L45CW
Bulletin PD-20621 05/01
Voltage Ratings
Part number STPS40L45CW
VRMax. DC Reverse Voltage (V)
V
Max. Working Peak Reverse Voltage (V)
RWM
45
Absolute Maximum Ratings
Parameters Value Units Conditions
I
Max. Average Forward (Per Leg) 20 A 50% duty cycle @ TC = 122 °C, rectangular wave form
F(AV)
Current * See Fig. 5 (Per Device) 40
I
Max. Peak One Cycle Non-Repetitive 1240 5µs Sine or 3µs Rect. pulse
FSM
Surge Current (Per Leg) * See Fig. 7 350 10ms Sine or 6ms Rect. pulse
EASNon-Repetitive Avalanche Energy 20 mJ T
(Per Leg)
A
= 25 °C, I
J
= 3 Amps, L = 4.4 mH
AS
IARRepetitive Avalanche Current 3 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical
Following any rated
load condition and with
rated V
RRM
applied
Electrical Specifications
Parameters Value Units Conditions
Typ. Max.
VFMForward Voltage Drop 0.48 0.53 V @ 20A
(Per Leg) * See Fig. 1 (1) 0.61 0.69 V @ 40A
0.42 0.49 V @ 20A
0.60 0.70 V @ 40A
IRMReverse Leakage Current - 1.5 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 20 80 mA TJ = 100 °C
V
Threshold Voltage 0.27 V T
F(TO)
r
Forward Slope Resistance 8.72 mΩ
t
J
= T
max.
J
CTMax. Junction Capacitance (Per Leg) - 1500 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 7.5 - nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change 10000 V/ µs
(Rated VR)
Thermal-Mechanical Specifications
TJ = 25 °C
TJ = 125 °C
VR = rated V
(1) Pulse Width < 300µs, Duty Cycle <2%
R
Parameters 40L45CW Units Conditions
TJMax. Junction Temperature Range -55 to 150 °C
T
Max. Storage Temperature Range -55 to 150 °C
stg
R
Max. Thermal Resistance Junction 1.6 °C/W DC operation * See Fig. 4
thJC
to Case (Per Leg)
R
Max. Thermal Resistance Junction 0.8 °C/W DC operation
thJC
to Case (Per Package)
R
Typical Thermal Resistance, Case 0.24 °C/W Mounting surface , smooth and greased
thCS
to Heatsink
wt Approximate Weight 6 (0.21) g (oz.)
T Mounting Torque Min. 6 (5) Non-lubricated threads
Max. 12 (10)
Kg-cm
(Ibf-in)
Case Style TO-247AC(TO-3P) JEDEC
2
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