15CTQ... Series
Vishay High Power Products
Schottky Rectifier, 2 x 7.5 A
FEATURES
• 150 °C T
J
operation
Base 2
common
cathode
• 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
Anode
TO-220AB
Anode
2
1 Common
3
cathode
• Guard ring for enhanced ruggedness and long term
reliability
• Designed and qualified for industrial level
DESCRIPTION
PRODUCT SUMMARY
I
F(AV)
V
R
2 x 7.5 A
35 to 45 V
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.
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
15CTQ035
35
15CTQ040
40
15CTQ045
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: 93228
Revision: 22-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
1
15CTQ... Series
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
VALUES
0.55
0.70
0.51
0.65
0.8
32
400
8.0
10 000
mA
pF
nH
V/µs
V
UNITS
T
J
= 125 °C
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
15CTQ035
Marking device
Case style TO-220AB
15CTQ040
15CTQ045
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2
For technical questions, contact: diodes-tech@vishay.com
Document Number: 93228
Revision: 22-Aug-08
15CTQ... Series
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
T
J
= 50 °C
10
1
1
T
J
= 150 °C
T
J
= 125 °C
T
J
= 25 °C
0.1
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
P
DM
t
1
t
2
0.01
Single pulse
(thermal resistance)
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: 93228
Revision: 22-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
3
15CTQ... Series
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
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For technical questions, contact: diodes-tech@vishay.com
Document Number: 93228
Revision: 22-Aug-08
15CTQ... Series
Schottky Rectifier, 2 x 7.5 A
Vishay High Power Products
ORDERING INFORMATION TABLE
Device code
15
1
1
2
3
4
5
6
-
-
C
2
T
3
Q
4
045
5
-
6
Current rating (15 = 15 A)
Circuit configuration:
C = Common cathode
-
Package:
T = TO-220
-
-
Schottky “Q” series
Voltage ratings
None = Standard production
PbF = Lead (Pb)-free
-
035 = 35 V
040 = 40 V
045 = 45 V
Tube standard pack quantity: 50 pieces
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
http://www.vishay.com/doc?95222
http://www.vishay.com/doc?95225
Document Number: 93228
Revision: 22-Aug-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
5
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