VS-20CTQ...SPbF, VS-20CTQ...-1PbF Series
Vishay High Power Products
Schottky Rectifier, 2 x 10 A
VS-20CTQ...SPbF
VS-20CTQ...-1PbF
FEATURES
•
•
•
•
•
175 °C T
J
operation
Center tap TO-220 package
Low forward voltage drop
High frequency operation
High purity, high temperature epoxy
encapsulation for enhanced mechanical
strength and moisture resistance
Guard ring for enhanced ruggedness and long
term reliability
Meets MSL level 1, per J-STD-020, LF maximum peak of
260 °C
Halogen-free according to IEC 61249-2-21 definition
Compliant to RoHS directive 2002/95/EC
AEC-Q101 qualified
Base
common
cathode
2
Base
common
cathode
2
•
•
2
1 Common
3
Anode cathode Anode
2
1 Common
3
Anode cathode Anode
•
•
•
D
2
PAK
TO-262
DESCRIPTION
The VS-20CTQ... center tap Schottky rectifier series has
been optimized for low reverse leakage at high temperature.
The proprietary barrier technology allows for reliable
operation up to 175 °C junction temperature. Typical
applications are in switching power supplies, converters,
freewheeling diodes, and reverse battery protection.
PRODUCT SUMMARY
I
F(AV)
V
R
2 x 10 A
35 V to 45 V
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
I
F(AV)
V
RRM
I
FSM
V
F
T
J
CHARACTERISTICS
Rectangular waveform
Range
t
p
= 5 μs sine
10 Apk, T
J
= 125 °C (per leg)
Range
VALUES
20
35 to 45
1060
0.57
- 55 to 175
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
V
R
V
RWM
VS-20CTQ035SPbF
VS-20CTQ035-1PbF
35
VS-20CTQ040SPbF
VS-20CTQ040-1PbF
40
VS-20CTQ045SPbF
VS-20CTQ045-1PbF
45
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average forward current
See fig. 5
Maximum peak one cycle non-repetitive
surge current per leg
See fig. 7
Non-repetitive avalanche energy per leg
Repetitive avalanche current per leg
SYMBOL
I
F(AV)
TEST CONDITIONS
50 % duty cycle at T
C
= 145 °C, rectangular waveform
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
VALUES
20
1060
265
13
2.0
mJ
A
A
UNITS
T
J
= 25 °C, I
AS
= 2.0 A, L = 6.5 mH
Current decaying linearly to zero in 1 μs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
Document Number: 94163
Revision: 12-Mar-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
1
VS-20CTQ...SPbF, VS-20CTQ...-1PbF Series
Vishay High Power Products
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
10 A
Maximum forward voltage drop per leg
See fig. 1
V
FM (1)
20 A
10 A
20 A
Maximum reverse leakage current per leg
See fig. 2
Maximum junction capacitance per leg
Typical series inductance per leg
Maximum voltage rate of change
Note
(1)
Pulse width < 300 μs, duty cycle < 2 %
I
RM (1)
C
T
L
S
dV/dt
T
J
= 25 °C
T
J
= 125 °C
TEST CONDITIONS
T
J
= 25 °C
T
J
= 125 °C
V
R
= Rated V
R
VALUES
0.64
0.76
0.57
0.68
2
15
900
8.0
10 000
mA
pF
nH
V/μs
V
UNITS
Schottky Rectifier,
2 x 10 A
V
R
= 5 V
DC
(test signal range 100 kHz to 1 MHz), 25 °C
Measured lead to lead 5 mm from package body
Rated V
R
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
Case style D
2
PAK
Case style TO-262
SYMBOL
T
J
, T
Stg
DC operation
See fig. 4
DC operation
R
thCS
Mounting surface, smooth and greased
TEST CONDITIONS
VALUES
- 55 to 175
3.25
1.63
0.50
2
0.07
6 (5)
12 (10)
g
oz.
kgf
⋅
cm
(lbf
⋅
in)
20CTQ045S
20CTQ045-1
°C/W
UNITS
°C
R
thJC
Mounting torque
Marking device
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2
For technical questions, contact:
diodestech@vishay.com
Document Number: 94163
Revision: 12-Mar-10
VS-20CTQ...SPbF, VS-20CTQ...-1PbF Series
Schottky Rectifier,
2 x 10 A
1000
1000
Vishay High Power Products
I
F
- Instantaneous Forward
Current (A)
100
I
R
- Reverse Current (mA)
100
10
1
T
J
= 100 °C
0.1
0.01
0.001
0.0001
T
J
= 75 °C
T
J
= 50 °C
T
J
= 25 °C
0
5
10
15
20
25
30
T
J
= 175 °C
T
J
= 150 °C
T
J
= 125 °C
10
T
J
= 175 °C
T
J
= 125 °C
T
J
= 25 °C
1
0.1
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
35
40
45
V
FM
- Forward Voltage Drop (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
1000
V
R
- Reverse Voltage (V)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
C
T
- Junction Capacitance (pF)
T
J
= 25 °C
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
0.1
0.01
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
Single pulse
(thermal resistance)
P
DM
t
1
t
2
Notes:
1. Duty factor D = t
1
/t
2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.001
0.01
0.1
1
10
100
0.001
0.00001
0.0001
t
1
- Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics (Per Leg)
Document Number: 94163
Revision: 12-Mar-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
3
VS-20CTQ...SPbF, VS-20CTQ...-1PbF Series
Vishay High Power Products
180
Schottky Rectifier,
2 x 10 A
9
Allowable Case Temperature (°C)
Average Power Loss (W)
175
170
165
160
155
150
145
0
5
DC
20CTQ
R
thJC
(DC) = 3.25 °C/W
8
7
6
5
4
3
2
1
0
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS limit
DC
10
15
0
5
10
15
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)
1000
At any rated load condition
and with rated V
RRM
applied
following surge
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
www.vishay.com
4
For technical questions, contact:
diodestech@vishay.com
Document Number: 94163
Revision: 12-Mar-10
VS-20CTQ...SPbF, VS-20CTQ...-1PbF Series
Schottky Rectifier,
2 x 10 A
ORDERING INFORMATION TABLE
Device code
Vishay High Power Products
VS-
1
1
2
3
4
5
6
7
8
-
-
-
-
-
-
-
-
20
2
C
3
T
4
Q
5
045
6
S
7
TRL PbF
8
9
HPP product suffix
Current rating (20 A)
Circuit configuration: C = Common cathode
T = TO-220
Schottky “Q” series
Voltage ratings
S = D
2
PAK
-1 = TO-262
None = Tube (50 pieces)
TRL = Tape and reel (left oriented - for D
2
PAK only)
TRR = Tape and reel (right oriented - for D
2
PAK only)
035 = 35 V
040 = 40 V
045 = 45 V
9
-
PbF = Lead (Pb)-free
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
Packaging information
www.vishay.com/doc?95014
www.vishay.com/doc?95008
www.vishay.com/doc?95032
Document Number: 94163
Revision: 12-Mar-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
5
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