Page 1
TO-220AB
PRODUCT SUMMARY
I
F(AV)
V
R
Schottky Rectifier, 2 x 6 A
FEATURES
• 175 °C TJ operation
Anode
Base
common
cathode
Common
1
cathode
35 to 45 V
2
2
2 x 6 A
Anode
3
• 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
• Designed and qualified for industrial level
DESCRIPTION
The 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.
12CTQ... Series
Vishay High Power Products
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
I
F(AV)
V
RRM
I
FSM
V
F
T
J
Rectangular waveform 12 A
Range 35 to 45 V
tp = 5 µs sine 690 A
6 Apk, TJ = 125 °C (per leg) 0.53 V
Range - 55 to 175 °C
VOLTAGE RATINGS
PARAMETER SYMBOL 12CTQ035 12CTQ040 12CTQ045 UNITS
Maximum DC reverse voltage V
Maximum working peak reverse voltage V
R
RWM
35 40 45 V
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
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 E
Repetitive avalanche current per leg I
per leg
per device 12
I
F(AV)
I
FSM
50 % duty cycle at TC = 160 °C, rectangular waveform
5 µs sine or 3 µs rect. pulse
10 ms sine or 6 ms rect. pulse 140
TJ = 25 °C, IAS = 1.20 A, L = 11.10 mH 8 mJ
AS
AR
Current decaying linearly to zero in 1 µs
Frequency limited by T
maximum VA = 1.5 x VR typical
J
Following any rated load
condition and with rated
V
applied
RRM
6
A
690
A
1.20 A
Document Number: 93214 For technical questions, contact: diodes-tech@vishay.com
Revision: 06-Oct-08 1
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Page 2
12CTQ... Series
Vishay High Power Products
Schottky Rectifier, 2 x 6 A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
6 A
Maximum forward voltage drop per leg
See fig. 1
V
FM
12 A 0.73
(1)
6 A
12 A 0.64
Maximum reverse leakage curent per leg
See fig. 2
I
RM
Threshold voltage V
Forward slope resistance r
Maximum junction capacitance per leg C
Typical series inductance per leg L
F(TO)
TJ = 25 °C
(1)
T
= 125 °C 7.0
J
TJ = TJ maximum
t
VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 400 pF
T
Measured lead to lead 5 mm from package body 8.0 nH
S
Maximum voltage rate of change dV/dt Rated V
T
= 25 °C
J
= 125 °C
T
J
V
= Rated V
R
R
R
0.60
0.53
0.8
0.35 V
18.23 mΩ
10 000 V/µs
Note
(1)
Pulse width < 300 µs, duty cycle < 2 %
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
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
Mounting torque
minimum 6 (5)
maximum 12 (10)
Marking device Case style TO-220AB
T
, T
J
Stg
DC operation
See fig. 4
R
thJC
- 55 to 175 °C
3.50
DC operation 1.75
R
thCS
Mounting surface, smooth and greased 0.50
2g
0.07 oz.
kgf · cm
(lbf · in)
12CTQ035
12CTQ040
12CTQ045
V
mA
°C/W
www.vishay.com For technical questions, contact: diodes-tech@vishay.com
Document Number: 93214
2 Revision: 06-Oct-08
Page 3
12CTQ... Series
Schottky Rectifier, 2 x 6 A
100
10
Current (A)
- Instantaneous Forward
F
I
1
0.4 0.8 1.2 1.61.41.00.60.2
V
- Forward Voltage Drop (V)
FM
Fig. 1 - Maximum Forward Voltage Drop Characteristics
TJ = 175 °C
T
= 125 °C
J
T
= 25 °C
J
(Per Leg)
1000
Vishay High Power Products
100
10
1
0.1
0.01
- Reverse Current (mA)
R
0.001
I
0.0001
0 102030 45
Fig. 2 - Typical Values of Reverse Current vs.
TJ = 50 °C
TJ = 25 °C
540
V
- Reverse Voltage (V)
R
Reverse Voltage (Per Leg)
TJ = 175 °C
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
352515
TJ = 25 °C
- Junction Capacitance (pF)
T
C
100
0 20304050
10
V
- Reverse Voltage (V)
R
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)
10
1
D = 0.75
D = 0.50
D = 0.33
0.1
D = 0.25
D = 0.20
0.01
- Thermal Impedance (°C/W)
thJC
Z
0.001
0.00001 0.0001 0.001 0.01 0.1 1 10 100
Single pulse
(thermal resistance)
Notes:
1. Duty factor D = t
2. Peak TJ = PDM x Z
P
DM
t
1
1/t2
thJC
t1 - Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
Characteristics (Per Leg)
thJC
t
2
.
+ T
C
.
Document Number: 93214 For technical questions, contact: diodes-tech@vishay.com
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Revision: 06-Oct-08 3
Page 4
12CTQ... Series
Vishay High Power Products
175
170
165
160
Square wave (D = 0.50)
80 % rated V
155
Allowable Case Temperature (°C)
See note (1)
150
0 8 104
I
F(AV)
applied
R
2
- Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current (Per Leg)
DC
6
1000
Schottky Rectifier, 2 x 6 A
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
Average Power Loss - (W)
0.5
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS limit
DC
0
0
2
I
- Average Forward Current (A)
F(AV)
46 10
8
Note
(1)
Formula used: TC = TJ - (Pd + Pd
Pd = Forward power loss = I
Pd
= Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated V
REV
F(AV)
At any rated load condition
and with rated V applied
100
following surge
10
- Non-Repetitive Surge Current (A)
FSM
I
tp - Square Wave Pulse Duration (µs)
Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)
D.U.T.
Current
monitor
IRFP460
= 25 Ω
R
g
Fig. 8 - Unclamped Inductive Test Circuit
) x R
thJC
;
F(AV)
/D) (see fig. 6);
REV
x VFM at (I
RRM
100
L
1000
High-speed
switch
Freewheel
diode
40HFL40S02
R
10 000
V
+
= 25 V
d
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Document Number: 93214
4 Revision: 06-Oct-08
Page 5
12CTQ... Series
ORDERING INFORMATION TABLE
Device code
12 C T Q 045 -
1
2
3
4
5
6
Schottky Rectifier, 2 x 6 A
51324
- Current rating (12 = 12 A)
- Circuit configuration:
C = Common cathode
- Package:
T = TO-220
- Schottky “Q” series
- Voltage ratings
- None = Standard production
PbF = Lead (Pb)-free
Vishay High Power Products
6
035 = 35 V
040 = 40 V
045 = 45 V
Tube standard pack quantity: 50 pieces
LINKS TO RELATED DOCUMENTS
Dimensions http://www.vishay.com/doc?95222
Part marking information http://www.vishay.com/doc?95225
Document Number: 93214 For technical questions, contact: diodes-tech@vishay.com
Revision: 06-Oct-08 5
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Page 6
Assembly
lot code
xxxxxxxx
V P119X
AC
TO-220AB
Part number
Product version (optional):
P = Lead (Pb)-free
None = Standard
Date code:
Year 1 = 2001
Week 19
Line X
Part Marking Information
Vishay High Power Products
Example: This is a xxxxxxxx with
assembly lot code AC,
assembled on WW 19, 2001
in the assembly line “X”
Document Number: 95225 For technical questions concerning discrete products, contact: diodes-tech@vishay.com
Revision: 30-Oct-08 For technical questions concerning module products, contact: ind-modules@vishay.com
www.vishay.com
1
Page 7
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(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
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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