Document Number: 94131 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 12-Mar-10 1
Schottky Rectifier, 2 x 6 A
VS-12CTQ...SPbF, VS-12CTQ...-1PbF Series
Vishay High Power Products
FEATURES
• 175 °C TJ operation
• Center tap TO-220 package
• Low forward voltage drop
• High purity, high temperature epoxy
encapsulation for enhanced mechanical
strength and moisture resistance
• High frequency operation
• 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
DESCRIPTION
The VS-12CTQ... 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
IF(AV) 2 x 6 A
VR35 V to 45 V
VS-12CTQ...SPbF
D
2
PAK TO-262
VS-12CTQ...-1PbF
Base
common
cathode
A
node Anode
Common
cathode
13
2
2
Base
common
cathode
Anode Anode
Common
cathode
13
2
2
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
IF(AV) Rectangular waveform 12 A
VRRM Range 35 to 45 V
IFSM tp = 5 μs sine 690 A
VF6 Apk, TJ = 125 °C (per leg) 0.53 V
TJRange - 55 to 175 °C
VOLTAGE RATINGS
PARAMETER SYMBOL VS-12CTQ035SPbF
VS-12CTQ035-1PbF
VS-12CTQ040SPbF
VS-12CTQ040-1PbF
VS-12CTQ045SPbF
VS-12CTQ045-1PbF UNITS
Maximum DC reverse voltage VR35 40 45 V
Maximum working peak reverse voltage VRWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average
forward current
See fig. 5
per leg
IF(AV) 50 % duty cycle at TC = 160 °C, rectangular waveform
6
A
per device 12
Maximum peak one cycle
non-repetitive surge current per leg
See fig. 7
IFSM
5 μs sine or 3 μs rect. pulse Following any rated load
condition and with rated
VRRM applied
690
A
10 ms sine or 6 ms rect. pulse 140
Non-repetitive avalanche energy per leg EAS TJ = 25 °C, IAS = 1.20 A, L = 11.10 mH 8 mJ
Repetitive avalanche current per leg IAR
Current decaying linearly to zero in 1 μs
Frequency limited by TJ maximum VA = 1.5 x VR typical 1.20 A
www.vishay.com For technical questions, contact: diodestech@vishay.com Document Number: 94131
2Revision: 12-Mar-10
VS-12CTQ...SPbF, VS-12CTQ...-1PbF Series
Vishay High Power Products Schottky Rectifier,
2 x 6 A
Note
(1) Pulse width < 300 μs, duty cycle < 2 %
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum forward voltage drop per leg
See fig. 1 VFM (1)
6 A TJ = 25 °C 0.60
V
12 A 0.73
6 A TJ = 125 °C 0.53
12 A 0.64
Maximum reverse leakage current per leg
See fig. 2 IRM (1) TJ = 25 °C VR = Rated VR
0.8 mA
TJ = 125 °C 7.0
Threshold voltage VF(TO) TJ = TJ maximum 0.35 V
Forward slope resistance rt18.23 mΩ
Maximum junction capacitance per leg CTVR = 5 VDC (test signal range 100 kHz to 1 MHz), 25 °C 400 pF
Typical series inductance per leg LSMeasured lead to lead 5 mm from package body 8.0 nH
Maximum voltage rate of change dV/dt Rated VR10 000 V/μs
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction and storage
temperature range TJ, TStg - 55 to 175 °C
Maximum thermal resistance,
junction to case per leg RthJC
DC operation
See fig. 4 3.50
°C/W
Maximum thermal resistance,
junction to case per package DC operation 1.75
Typical thermal resistance,
case to heatsink RthCS Mounting surface, smooth and greased 0.50
Approximate weight 2g
0.07 oz.
Mounting torque minimum 6 (5) kgf · cm
(lbf · in)
maximum 12 (10)
Marking device
Case style D2PAK
12CTQ035S
12CTQ040S
12CTQ045S
Case style TO-262
12CTQ035-1
12CTQ040-1
12CTQ045-1
Document Number: 94131 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 12-Mar-10 3
VS-12CTQ...SPbF, VS-12CTQ...-1PbF Series
Schottky Rectifier,
2 x 6 A Vishay High Power Products
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics (Per Leg)
1
10
100
IF - Instantaneous Forward
Current (A)
VFM - Forward Voltage Drop (V)
0.4 0.8 1.2 1.61.41.00.60.2
TJ = 175 °C
TJ = 125 °C
TJ = 25 °C
IR - Reverse Current (mA)
VR - Reverse Voltage (V)
0 102030 45
0.0001
0.01
0.1
1
10
100
540
0.001
352515
TJ = 175 °C
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
CT - Junction Capacitance (pF)
VR - Reverse Voltage (V)
0 20304050
100
1000
10
TJ = 25 °C
ZthJC - Thermal Impedance (°C/W)
0.001
0.01
0.1
1
10
t1 - Rectangular Pulse Duration (s)
0.00001 0.0001 0.001 0.01 0.1 1 10 100
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
Single pulse
(thermal resistance)
.
.
PDM
t1
t2
Notes:
1. Duty factor D = t1/t2
2. Peak TJ = PDM x ZthJC + TC
www.vishay.com For technical questions, contact: diodestech@vishay.com Document Number: 94131
4Revision: 12-Mar-10
VS-12CTQ...SPbF, VS-12CTQ...-1PbF Series
Vishay High Power Products Schottky Rectifier,
2 x 6 A
Fig. 5 - Maximum Allowable Case Temperature vs. Average
Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)
Fig. 8 - Unclamped Inductive Test Circuit
Note
(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;
Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);
PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated VR
Allowable Case Temperature (°C)
IF(AV) - Average Forward Current (A)
08104
150
155
160
165
170
175
See note (1)
Square wave (D = 0.50)
80 % rated VR applied
DC
26
0
Average Power Loss (W)
I
F(AV)
- Average Forward Current (A)
046 10
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
28
DC
RMS limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
I
FSM
- Non-Repetitive Surge Current (A)
t
p
- Square Wave Pulse Duration (µs)
100
1000
10 100 1000 10 000
At any rated load condition
and with rated V applied
following surge RRM
Current
monitor
High-speed
switch
D.U.T.
Rg = 25 Ω
+
Freewheel
diode Vd = 25 V
L
IRFP460
40HFL40S02
Document Number: 94131 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 12-Mar-10 5
VS-12CTQ...SPbF, VS-12CTQ...-1PbF Series
Schottky Rectifier,
2 x 6 A Vishay High Power Products
ORDERING INFORMATION TABLE
035 = 35 V
040 = 40 V
045 = 45 V
2- Current rating (12 A)
3- Circuit configuration: C = Common cathode
4- T = TO-220
5- Schottky “Q” series
6- Voltage ratings
7- S = D2PAK
-1 = TO-262
8- None = Tube (50 pieces)
TRL = Tape and reel (left oriented - for D2PAK only)
TRR = Tape and reel (right oriented - for D2PAK only)
- PbF = Lead (Pb)-free
9
1- HPP product suffix
Device code
51 324
6789
VS- 12 C T Q 045 S TRL PbF
LINKS TO RELATED DOCUMENTS
Dimensions www.vishay.com/doc?95014
Part marking information www.vishay.com/doc?95008
Packaging information www.vishay.com/doc?95032
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
Disclaimer
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Vishay
All product specifications and data are subject to change without notice.
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(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
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