15CTQ...S/15CTQ...-1
Vishay High Power Products
Schottky Rectifier, 2 x 7.5 A
15CTQ...S
15CTQ...-1
FEATURES
• 150 °C T
J
operation
• Center tap TO-220 package
• Low forward voltage drop
Base
common
cathode
2
Base
common
cathode
2
• 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
• Designed and qualified for Q101 level
2
1 Common
3
Anode cathode Anode
2
1 Common
3
Anode cathode Anode
DESCRIPTION
The 15CTQ center tap Schottky rectifier series 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, converters,
freewheeling diodes, and reverse battery protection.
D
2
PAK
TO-262
PRODUCT SUMMARY
I
F(AV)
V
R
2 x 7.5 A
35 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
7.5 Apk, T
J
= 125 °C (per leg)
Range
VALUES
15
35 to 45
810
0.51
- 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
15CTQ035S
15CTQ035-1
35
15CTQ040S
15CTQ040-1
40
15CTQ045S
15CTQ045-1
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
= 123 °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
15
810
A
145
10
1.5
mJ
A
UNITS
A
T
J
= 25 °C, I
AS
= 1.20 A, L = 11.10 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: 93947
Revision: 22-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
1
15CTQ...S/15CTQ...-1
Vishay High Power Products
Schottky Rectifier, 2 x 7.5 A
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
7.5 A
Maximum forward voltage drop per leg
See fig. 1
V
FM (1)
15 A
7.5 A
15 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
VALUES
0.55
0.70
0.51
0.65
0.8
32
400
8.0
10 000
mA
pF
nH
V/µs
V
UNITS
V
R
= Rated V
R
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
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
3.50
1.75
0.50
2
0.07
6 (5)
12 (10)
g
oz.
kgf · cm
(lbf · in)
°C/W
UNITS
°C
R
thJC
Mounting torque
15CTQ035S
Case style D
2
PAK
Marking device
Case style TO-262
15CTQ040S
15CTQ045S
15CTQ035-1
15CTQ040-1
15CTQ045-1
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2
For technical questions, contact: diodes-tech@vishay.com
Document Number: 93947
Revision: 22-Aug-08
15CTQ...S/15CTQ...-1
Schottky Rectifier, 2 x 7.5 A
Vishay High Power Products
100
100
T
J
= 150 °C
I
F
- Instantaneous Forward
Current (A)
I
R
- Reverse Current (mA)
10
T
J
= 125 °C
T
J
= 100 °C
T
J
= 75 °C
10
1
T
J
= 150 °C
T
J
= 125 °C
T
J
= 25 °C
1
0.1
T
J
= 50 °C
0.01
T
J
= 25 °C
0.1
0.001
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
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)
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
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
0.01
Notes:
1. Duty factor D = t
1
/t
2
.
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.01
0.1
1
10
.
100
0.001
0.00001
0.0001
0.001
t
1
- Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics (Per Leg)
Document Number: 93947
Revision: 22-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
3
15CTQ...S/15CTQ...-1
Vishay High Power Products
Schottky Rectifier, 2 x 7.5 A
155
7
Allowable Case Temperature (°C)
Average Power Loss (W)
150
145
140
135
130
125
0
2
4
15CTQ
R
thJC
(DC) = 3.50 °C/W
6
5
4
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS limit
3
2
1
0
DC
DC
6
8
10
12
0
2
4
6
8
10
12
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: diodes-tech@vishay.com
Document Number: 93947
Revision: 22-Aug-08
15CTQ...S/15CTQ...-1
Schottky Rectifier, 2 x 7.5 A
Vishay High Power Products
ORDERING INFORMATION TABLE
Device code
15
1
C
2
T
3
Q
4
045
5
S
6
TRL
7
-
8
1
2
3
4
5
6
7
-
-
-
-
-
-
Current rating (15 A)
Circuit configuration:
C = Common cathode
T = TO-220
Schottky “Q” series
Voltage ratings
S = D
2
PAK
-1 = TO-262
035 = 35 V
040 = 40 V
045 = 45 V
-
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)
8
-
None = Standard production
PbF = Lead (Pb)-free
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
Packaging information
http://www.vishay.com/doc?95014
http://www.vishay.com/doc?95008
http://www.vishay.com/doc?95032
Document Number: 93947
Revision: 22-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
5
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