VS-25CTQ...PbF Series, VS-25CTQ...-N3 Series
www.vishay.com
Vishay Semiconductors
Schottky Rectifier, 2 x 15 A
Base 2
common
cathode
FEATURES
• 150 °C T
J
operation
• 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
• Compliant to RoHS Directive 2002/95/EC
• Designed and qualified according to JEDEC-JESD47
Anode
TO-220AB
Anode
2
1 Common 3
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-220AB
2 x 15 A
25 V, 40 V, 45 V
0.50 V
70 mA at 125 °C
150 °C
Common cathode
20 mJ
• Halogen-free according to IEC 61249-2-21 definition
(-N3 only)
DESCRIPTION
The VS-25CTQ... 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
15 A
pk
, T
J
= 125 °C (per leg)
Range
VALUES
30
35 to 45
990
0.50
- 55 to 150
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC
reverse voltage
Maximum working
peak reverse
voltage
SYMBOL
V
R
35
V
RWM
35
40
40
45
45
V
VS-
VS-
VS-
VS-
VS-
VS-
UNITS
25CTQ035PbF 25CTQ035-N3 25CTQ040PbF 25CTQ040-N3 25CTQ045PbF 25CTQ045-N3
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
Revision: 26-Aug-11
SYMBOL
I
F(AV)
TEST CONDITIONS
50 % duty cycle at T
C
= 102 °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
30
990
A
250
20
3
mJ
A
UNITS
A
T
J
= 25 °C, I
AS
= 3.0 A, L = 4.40 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: 94173
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-25CTQ...PbF Series, VS-25CTQ...-N3 Series
www.vishay.com
Vishay Semiconductors
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
15 A
Maximum forward voltage drop per leg
See fig. 1
V
FM (1)
30 A
15 A
30 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
0.56
0.71
V
0.50
T
J
= 125 °C
0.64
1.75
V
R
= Rated V
R
mA
70
900
8.0
10 000
pF
nH
V/μs
UNITS
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
3.25
1.63
0.50
2.0
0.07
6 (5)
12 (10)
g
oz.
kgf · cm
(lbf · in)
°C/W
UNITS
°C
R
thJC
Mounting torque
25CTQ035
Marking device
Case style TO-220AB
25CTQ040
25CTQ045
Revision: 26-Aug-11
Document Number: 94173
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-25CTQ...PbF Series, VS-25CTQ...-N3 Series
www.vishay.com
Vishay Semiconductors
1000
I
F
- Instantaneous Forward Current (A)
1000
I
R
- Reverse Current (mA)
100
10
T
J
= 150 °C
T
J
= 125 °C
T
J
= 100 °C
100
10
T
J
= 150 °C
T
J
= 125 °C
T
J
= 25 °C
1
0.1
0.01
T
J
= 75 °C
T
J
= 50 °C
1
T
J
= 25 °C
0.1
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
0.001
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)
1000
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
Single pulse
(thermal resistance)
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
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
0.1
1
10
100
0.001
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: 26-Aug-11
Document Number: 94173
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-25CTQ...PbF Series, VS-25CTQ...-N3 Series
www.vishay.com
Vishay Semiconductors
12
160
Allowable Case Temperature (°C)
140
130
DC
120
110
100
0
5
10
15
20
25
Average Power Loss (W)
150
25CTQ
R
thJC
(DC) = 3.25 °C/W
10
8
6
4
2
0
0
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS limit
DC
2
4
6
8
10 12 14 16 18 20 22
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
10000
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
Revision: 26-Aug-11
Document Number: 94173
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-25CTQ...PbF Series, VS-25CTQ...-N3 Series
www.vishay.com
ORDERING INFORMATION TABLE
Vishay Semiconductors
Device code
VS-
1
1
2
3
4
5
6
7
-
-
-
-
25
2
C
3
T
4
Q
5
045 PbF
6
7
Vishay Semiconductors product
Current rating (25 = 25 A)
Circuit configuration:
C = Common cathode
Package:
T = TO-220
035 = 35 V
040 = 40 V
045 = 45 V
-
-
-
Schottky “Q” series
Voltage ratings
Environmental digit
PbF = Lead (Pb)-free and RoHS compliant
-N3 = Halogen-free, RoHS compliant, and totally lead (Pb)-free
ORDERING INFORMATION
(Example)
PREFERRED P/N
VS-25CTQ035PbF
VS-25CTQ035-N3
VS-25CTQ040PbF
VS-25CTQ040-N3
VS-25CTQ045PbF
VS-25CTQ045-N3
QUANTITY PER T/R
50
50
50
50
50
50
MINIMUM ORDER QUANTITY
1000
1000
1000
1000
1000
1000
PACKAGING DESCRIPTION
Antistatic plastic tube
Antistatic plastic tube
Antistatic plastic tube
Antistatic plastic tube
Antistatic plastic tube
Antistatic plastic tube
LINKS TO RELATED DOCUMENTS
Dimensions
TO-220AB PbF
Part marking information
TO-220AB -N3
SPICE model
www.vishay.com/doc?95028
www.vishay.com/doc?95285
www.vishay.com/doc?95222
www.vishay.com/doc?95225
Revision: 26-Aug-11
Document Number: 94173
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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