VS-40L4.CWPbF Series, VS-40L4.CW-N3 Series
www.vishay.com
Vishay Semiconductors
Schottky Rectifier, 2 x 20 A
Base
common
cathode
2
FEATURES
• 150 °C T
J
operation
• 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
• Compliant to RoHS Directive 2002/95/EC
• Designed and qualified according to JEDEC-JESD47
• Halogen-free according to IEC 61249-2-21 definition
(-N3 only)
TO-247AC
1
3
Anode
Anode
2
1
2
Common
cathode
PRODUCT SUMMARY
Package
I
F(AV)
V
R
V
F
at I
F
I
RM
max.
T
J
max.
Diode variation
E
AS
TO-247AC
2 x 20 A
40 V, 45 V
0.49 V
80 mA at 100 °C
150 °C
Common cathode
20 mJ
DESCRIPTION
The VS-40L...CW... 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 parallel switching power supplies.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
I
F(AV)
V
RRM
I
FSM
V
F
T
J
t
p
= 5 μs sine
20 Apk, T
J
= 125 °C (per leg, typical)
CHARACTERISTICS
Rectangular waveform
VALUES
40
40/45
1240
0.42
- 55 to 150
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse
voltage
SYMBOL
V
R
V
RWM
40
40
45
45
V
VS-40L40CWPbF
VS-40L40CW-N3
VS-40L45CWPbF
VS-40L45CW-N3
UNITS
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average
forward current
See fig. 5
per leg
I
F(AV)
per device
5 µs sine or 3 µs rect. pulse
I
FSM
10 ms sine or 6 ms rect. pulse
E
AS
I
AR
Following any rated load
condition and with rated
V
RRM
applied
50 % duty cycle at T
C
= 122 °C, rectangular waveform
40
A
Maximum peak one cycle non-repetitive
surge current per leg
See fig. 7
Non-repetitive avalanche energy per leg
Repetitive avalanche current per leg
1240
350
20
3
mJ
A
SYMBOL
TEST CONDITIONS
VALUES
20
UNITS
T
J
= 25 °C, I
AS
= 3 A, L = 4.4 mH
Current decaying linearly to zero in 1 μs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
Revision: 11-Oct-11
Document Number: 94219
1
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VS-40L4.CWPbF Series, VS-40L4.CW-N3 Series
www.vishay.com
Vishay Semiconductors
ELECTRICAL SPECIFICATIONS
PARAMETER
Maximum forward voltage drop per leg
See fig. 1
SYMBOL
20 A
V
FM (1)
40 A
20 A
40 A
Reverse leakage current per leg
See fig. 2
Threshold voltage
Forward slope resistance
Maximum junction capacitance per leg
Maximum voltage rate of change
Note
(1)
Pulse width < 300 μs, duty cycle < 2 %
I
RM (1)
V
F(TO)
r
t
C
T
dV/dt
T
J
= 25 °C
T
J
= 100 °C
T
J
=T
J
maximum
V
R
= 5 V
DC
(test signal range 100 kHz to 1 MHz) 25 °C
Rated V
R
-
TEST CONDITIONS
T
J
= 25 °C
T
J
= 125 °C
V
R
= Rated V
R
TYP.
0.48
0.61
0.42
0.60
-
20
0.27
8.72
1500
10 000
MAX.
0.53
0.69
0.49
0.70
1.5
80
mA
V
m
pF
V/μs
V
UNITS
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
Maximum junction and storage
temperature range
Maximum thermal resistance,
junction to case per leg
Maximum thermal resistance,
junction to case per package
Typical thermal resistance,
case to heatsink
Approximate weight
minimum
maximum
SYMBOL
T
J
, T
Stg
DC operation
See fig. 4
DC operation
R
thCS
Mounting surface, smooth and greased
TEST CONDITIONS
VALUES
- 55 to 150
1.6
0.8
0.24
6
0.21
Non-lubricated threads
6 (5)
12 (10)
g
oz.
kgf
cm
(lbf
in)
°C/W
UNITS
°C
R
thJC
Mounting torque
Marking device
Case style TO-247AC (JEDEC)
40L40CW
40L45CW
Revision: 11-Oct-11
Document Number: 94219
2
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VS-40L4.CWPbF Series, VS-40L4.CW-N3 Series
www.vishay.com
Vishay Semiconductors
1000
I
F
- Instantaneous Forward Current (A)
1000
I
R
- Reverse Current (mA)
100
10
1
0.1
T
J
= 150 °C
T
J
= 125 °C
T
J
= 100 °C
T
J
= 75 °C
T
J
= 50 °C
T
J
= 25 °C
100
T
J
= 150 °C
T
J
= 125 °C
T
J
= 25 °C
10
0.01
0.001
1
0
0.2
0.4
0.6 0.8 1.0
1.2 1.4
1.6
1.8
0
5
10
15
20
25
30
35
40
45
V
FM
- Forward Voltage Drop (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
V
R
- Reverse Voltage (V)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
10 000
C
T
- Junction Capacitance (pF)
T
J
= 25 °C
1000
100
0
10
20
30
40
50
V
R
- Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)
Z
thJC
- Thermal Impedance (°C/W)
10
1
P
DM
t
1
0.1
Single pulse
(thermal resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
t
2
Notes:
1. Duty factor D = t
1
/t
2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.1
1
10
100
0.01
0.00001
0.0001
0.001
0.01
t
1
- Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics (Per Leg)
Revision: 11-Oct-11
Document Number: 94219
3
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VS-40L4.CWPbF Series, VS-40L4.CW-N3 Series
www.vishay.com
Vishay Semiconductors
18
16
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS limit
Allowable Case Temperature (°C)
150
140
Average Power Loss (W)
14
12
10
8
6
4
2
0
DC
130
120
Square
wave
(D = 0.50)
80
% rated
V
R
applied
DC
110
See note (1)
100
0
5
10
15
20
25
30
0
5
10
15
20
25
30
I
F(AV)
- Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current (Per Leg)
I
F(AV)
- Average Forward Current (A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
I
FSM
- Non-Repetitive Surge Current (A)
10 000
At any rated load conditon
and
with
rated
V
RRM
applied
following surge
1000
100
10
100
1000
10 000
t
p
- Square Wave Pulse Duration (µs)
Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)
L
High-speed
switch
Freewheel
diode
40HFL40S02
+
V
d
= 25
V
D.U.T.
IRFP460
R
g
= 25
Ω
Current
monitor
Fig. 8 - Unclamped Inductive Test Circuit
Note
(1)
Formula used: T = T - (Pd + Pd
C
J
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 6);
Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= 80 %
rated V
R
Revision: 11-Oct-11
Document Number: 94219
4
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VS-40L4.CWPbF Series, VS-40L4.CW-N3 Series
www.vishay.com
ORDERING INFORMATION TABLE
Device code
Vishay Semiconductors
VS-
1
-
-
-
-
-
-
40
2
L
3
45
4
C
5
W
6
PbF
7
1
2
3
4
5
6
7
Vishay Semiconductors product
Current rating (40 = 40 A)
Schottky “L” series
Voltage code
Circuit configuration:
C = Common cathode
Package:
W = TO-247
Environmental digit
PbF = Lead (Pb)-free and RoHS compliant
-N3 = Halogen-free, RoHS compliant, and totally lead (Pb)-free
40 = 40 V
45 = 45 V
-
ORDERING INFORMATION
(Example)
PREFERRED P/N
VS-40L40CWPbF
VS-40L40CW-N3
VS-40L45CWPbF
VS-40L45CW-N3
QUANTITY PER T/R
25
25
25
25
MINIMUM ORDER QUANTITY
500
500
500
500
PACKAGING DESCRIPTION
Antistatic plastic tube
Antistatic plastic tube
Antistatic plastic tube
Antistatic plastic tube
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
TO-247AC PbF
TO-247AC -N3
www.vishay.com/doc?95223
www.vishay.com/doc?95226
www.vishay.com/doc?95007
Revision: 11-Oct-11
Document Number: 94219
5
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
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