VS-20CTQ...S-M3, VS-20CTQ...-1-M3 Series
www.vishay.com
Vishay Semiconductors
High Performance Schottky Rectifier, 2 x 10 A
FEATURES
• 175 °C TJ operation
• Center tap configuration
• Low forward voltage drop
2
• High frequency operation
1
• High
purity,
high
temperature
epoxy
encapsulation for enhanced mechanical strength
and moisture resistance
1
3
D2PAK (TO-263AB)
2
TO-262AA
3
Base
common
cathode
2
• Guard ring for enhanced ruggedness and long term
reliability
Base
common
cathode
2
• Meets MSL level 1, per J-STD-020, LF maximum peak
of 245 °C
• Designed and qualified according to JEDEC®-JESD 47
2
1 Common
3
Anode cathode Anode
2
1 Common
3
Anode cathode Anode
VS-20CTQ...S-M3
VS-20CTQ...-1-M3
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
DESCRIPTION
The VS-20CTQ... 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.
PRIMARY CHARACTERISTICS
IF(AV)
2 x 10 A
VR
35 V, 40 V, 45 V
VF at IF
0.57 V
IRM
15 mA at 125 °C
TJ max.
175 °C
EAS
13 mJ
Package
D2PAK (TO-263AB), TO-262AA
Circuit configuration
Common cathode
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
CHARACTERISTICS
IF(AV)
Rectangular waveform
VRRM
Range
IFSM
tp = 5 μs sine
VF
10 Apk, TJ = 125 °C (per leg)
TJ
Range
VALUES
UNITS
20
A
35 to 45
V
1060
A
0.57
V
-55 to +175
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
VR
VRWM
VS-20CTQ035S-M3
VS-20CTQ035-1-M3
VS-20CTQ040S-M3
VS-20CTQ040-1-M3
VS-20CTQ045S-M3
VS-20CTQ045-1-M3
UNITS
35
40
45
V
Revision: 21-Dec-2021
Document Number: 94932
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-20CTQ...S-M3, VS-20CTQ...-1-M3 Series
www.vishay.com
Vishay Semiconductors
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
TEST CONDITIONS
VALUES
UNITS
Maximum average forward current
See fig. 5
IF(AV)
Maximum peak one cycle non-repetitive
surge current per leg
See fig. 7
IFSM
Non-repetitive avalanche energy per leg
EAS
TJ = 25 °C, IAS = 2.0 A, L = 6.5 mH
13
mJ
IAR
Current decaying linearly to zero in 1 μs
Frequency limited by TJ maximum VA = 1.5 x VR typical
2.0
A
VALUES
UNITS
50 % duty cycle at TC = 145 °C, rectangular waveform
5 μs sine or 3 μs rect. pulse
Repetitive avalanche current per leg
10 ms sine or 6 ms rect. pulse
Following any rated load
condition and with rated
VRRM applied
20
1060
A
265
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
TEST CONDITIONS
10 A
Maximum forward voltage drop per leg
See fig. 1
VFM (1)
TJ = 25 °C
20 A
10 A
TJ = 125 °C
20 A
Maximum reverse leakage current per leg
See fig. 2
IRM (1)
TJ = 25 °C
VR = Rated VR
TJ = 125 °C
0.64
0.76
0.57
V
0.68
2
15
mA
Maximum junction capacitance per leg
CT
VR = 5 VDC (test signal range 100 kHz to 1 MHz), 25 °C
900
pF
Typical series inductance per leg
LS
Measured lead to lead 5 mm from package body
8.0
nH
Maximum voltage rate of change
dV/dt
10 000
V/μs
VALUES
UNITS
-55 to 175
°C
Rated VR
Note
(1) Pulse width < 300 μs, duty cycle < 2 %
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
SYMBOL
Maximum junction and storage
temperature range
Maximum thermal resistance,
junction to case per leg
TJ, TStg
RthJC
Maximum thermal resistance,
junction to case per package
Typical thermal resistance,
case to heatsink
TEST CONDITIONS
RthCS
DC operation
See fig. 4
3.25
DC operation
1.63
Mounting surface, smooth and greased
0.50
2
g
0.07
oz.
minimum
6 (5)
maximum
12 (10)
kgf ⋅ cm
(lbf ⋅ in)
Approximate weight
Mounting torque
°C/W
Case style D2PAK (TO-263AB)
20CTQ035S
20CTQ040S
20CTQ045S
Case style TO-262AA
20CTQ035-1
20CTQ040-1
20CTQ045-1
Revision: 21-Dec-2021
Document Number: 94932
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-20CTQ...S-M3, VS-20CTQ...-1-M3 Series
www.vishay.com
Vishay Semiconductors
1000
IR - Reverse Current (mA)
IF - Instantaneous Forward
Current (A)
1000
100
10
TJ = 175 °C
TJ = 125 °C
TJ = 25 °C
1
0.1
100
TJ = 175 °C
TJ = 150 °C
10
TJ = 125 °C
1
TJ = 100 °C
0.1
TJ = 75 °C
0.01
TJ = 50 °C
0.001
TJ = 25 °C
0.0001
0
0.4
0.2
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
5
10
VFM - Forward Voltage Drop (V)
15
25
20
30
35
40
45
VR - Reverse Voltage (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
CT - Junction Capacitance (pF)
1000
TJ = 25 °C
100
0
10
20
30
40
50
VR - Reverse Voltage (V)
ZthJC - Thermal Impedance (°C/W)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)
10
1
0.1
0.01
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
PDM
t1
t2
Notes:
1. Duty factor D = t1/t2
2. Peak TJ = PDM x ZthJC + TC
Single pulse
(thermal resistance)
0.001
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t1 - Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics (Per Leg)
Revision: 21-Dec-2021
Document Number: 94932
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-20CTQ...S-M3, VS-20CTQ...-1-M3 Series
www.vishay.com
Vishay Semiconductors
9
20CTQ
RthJC (DC) = 3.25 °C/W
175
170
165
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
8
Average Power Loss (W)
Allowable Case Temperature (°C)
180
DC
160
155
150
7
6
RMS limit
5
4
3
DC
2
1
0
145
0
5
0
15
10
5
10
15
IF(AV) - Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
IFSM - Non-Repetitive Surge Current (A)
IF(AV) - Average Forward Current (A)
1000
At any rated load condition
and with rated VRRM applied
following surge
100
10
100
10 000
1000
tp - Square Wave Pulse Duration (µs)
Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)
L
D.U.T.
IRFP460
Rg = 25 Ω
Current
monitor
High-speed
switch
Freewheel
diode
+ Vd = 25 V
40HFL40S02
Fig. 8 - Unclamped Inductive Test Circuit
Note
Formula used: TC = TJ - (Pd + PdREV) x RthJC;
(1)
Revision: 21-Dec-2021
Document Number: 94932
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-20CTQ...S-M3, VS-20CTQ...-1-M3 Series
www.vishay.com
Vishay Semiconductors
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 applied
ORDERING INFORMATION TABLE
Device code
VS-
20
C
T
Q
045
S
1
2
3
4
5
6
7
1
-
Vishay Semiconductors product
2
-
Current rating (20 A)
TRL -M3
8
3
-
Circuit configuration: C = common cathode
4
-
T = TO-220
5
-
Schottky “Q” series
6
-
Voltage ratings
7
-
S = D2PAK (TO-263AB)
9
035 = 35 V
040 = 40 V
045 = 45 V
-1 = TO-262AA
8
-
None = tube
TRL = tape and reel (left oriented - for D2PAK (TO-263AB) only)
TRR = tape and reel (right oriented - for D2PAK (TO-263AB) only)
9
-
-M3 = halogen-free, RoHS-compliant, and termination lead (Pb)-free
ORDERING INFORMATION
PREFERRED P/N
BASE QUANTITY
PACKAGING DESCRIPTION
VS-20CTQ035S-M3
50
Antistatic plastic tubes
VS-20CTQ035STRL-M3
800
13" diameter plastic tape and reel
VS-20CTQ035STRR-M3
800
13" diameter plastic tape and reel
VS-20CTQ040S-M3
50
Antistatic plastic tubes
VS-20CTQ040STRL-M3
50
13" diameter plastic tape and reel
VS-20CTQ040STRR-M3
800
13" diameter plastic tape and reel
VS-20CTQ045S-M3
800
Antistatic plastic tubes
VS-20CTQ045STRL-M3
50
13" diameter plastic tape and reel
VS-20CTQ045STRR-M3
50
13" diameter plastic tape and reel
VS-20CTQ150S-M3
800
Antistatic plastic tubes
VS-20CTQ150STRL-M3
800
13" diameter plastic tape and reel
VS-20CTQ150STRR-M3
50
13" diameter plastic tape and reel
VS-20CTQ045-1-M3
50
Antistatic plastic tubes
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
Packaging information
D2PAK (TO-263AB)
www.vishay.com/doc?96164
TO-262AA
www.vishay.com/doc?96165
(TO-263AB)
www.vishay.com/doc?95444
D2PAK
TO-262AA
www.vishay.com/doc?95443
www.vishay.com/doc?96424
Revision: 21-Dec-2021
Document Number: 94932
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
Outline Dimensions
www.vishay.com
Vishay Semiconductors
D2PAK
DIMENSIONS in millimeters and inches
Conforms to JEDEC® outline D2 PAK (SMD-220)
(2)(3)
E
B
Pad layout
A
A
(E)
c2
11.00
MIN.
(0.43)
A
(3) L1
4
9.65
MIN.
(0.38)
(D1) (3)
Detail A
D
H
1
2
17.90 (0.70)
15.00 (0.625)
(2)
3
3.81
MIN.
(0.15)
L2
B
B
2.32
MIN.
(0.08)
A
2 x b2
c
2.64 (0.103)
2.41 (0.096)
(3)
E1
C
View A - A
2xb
± 0.004 M B
0.010 M A M B
Plating
Base
Metal
(4)
b1, b3
H
2x e
Gauge
plane
c1 (4)
(c)
B
0° to 8°
Seating
plane
L3
Lead tip
A1
L
(b, b2)
L4
Section B - B and C - C
Scale: None
Detail “A”
Rotated 90 °CW
Scale: 8:1
SYMBOL
MILLIMETERS
MIN.
MAX.
INCHES
MIN.
MAX.
NOTES
SYMBOL
MILLIMETERS
MIN.
MAX.
INCHES
MIN.
MAX.
NOTES
A
4.06
4.83
0.160
0.190
D1
6.86
8.00
0.270
0.315
3
A1
0.00
0.254
0.000
0.010
E
9.65
10.67
0.380
0.420
2, 3
E1
7.90
8.80
0.311
0.346
3
b
0.51
0.99
0.020
0.039
b1
0.51
0.89
0.020
0.035
b2
1.14
1.78
0.045
0.070
b3
1.14
1.73
0.045
0.068
c
0.38
0.74
0.015
0.029
c1
0.38
0.58
0.015
0.023
c2
1.14
1.65
0.045
0.065
D
8.51
9.65
0.335
0.380
4
e
2.54 BSC
0.100 BSC
H
14.61
15.88
0.575
0.625
4
L
1.78
2.79
0.070
0.110
L1
-
1.65
-
0.066
4
L2
1.27
1.78
0.050
0.070
2
L4
L3
0.25 BSC
4.78
5.28
3
0.010 BSC
0.188
0.208
Notes
(1) Dimensioning and tolerancing per ASME Y14.5 M-1994
(2) Dimension D and E do not include mold flash. Mold flash shall not exceed 0.127 mm (0.005") per side. These dimensions are measured at
the outmost extremes of the plastic body
(3) Thermal pad contour optional within dimension E, L1, D1 and E1
(4) Dimension b1 and c1 apply to base metal only
(5) Datum A and B to be determined at datum plane H
(6) Controlling dimension: inch
(7) Outline conforms to JEDEC® outline TO-263AB
Revision: 08-Jul-15
Document Number: 95046
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
Outline Dimensions
www.vishay.com
Vishay Semiconductors
TO-262
DIMENSIONS in millimeters and inches
Modified JEDEC® outline TO-262
(Datum A) (2) (3)
E
A
A
c2
B
E
A
(3) L1
Seating
plane
D
1
2 3
C
L2
B
D1 (3)
B
C
L (2)
A
c
3 x b2
3xb
E1
A1
(3)
Section A - A
2xe
Plating
0.010 M A M B
(4)
b1, b3
Base
metal
Lead assignments
Diodes
1. - Anode (two die)/open (one die)
2., 4. - Cathode
3. - Anode
Lead tip
SYMBOL
c1
c
(4)
(b, b2)
Section B - B and C - C
Scale: None
MILLIMETERS
INCHES
MIN.
MAX.
MIN.
MAX.
0.190
NOTES
A
4.06
4.83
0.160
A1
2.03
3.02
0.080
0.119
b
0.51
0.99
0.020
0.039
b1
0.51
0.89
0.020
0.035
b2
1.14
1.78
0.045
0.070
b3
1.14
1.73
0.045
0.068
c
0.38
0.74
0.015
0.029
c1
0.38
0.58
0.015
0.023
c2
1.14
1.65
0.045
0.065
D
8.51
9.65
0.335
0.380
D1
6.86
8.00
0.270
0.315
3
E
9.65
10.67
0.380
0.420
2, 3
E1
7.90
8.80
0.311
0.346
3
e
L
2.54 BSC
4
4
4
2
0.100 BSC
13.46
14.10
0.530
0.555
L1
-
L2
3.36
1.65
-
0.065
3.71
0.132
0.146
Notes
(1) Dimensioning and tolerancing as per ASME Y14.5M-1994
(2) Dimension D and E do not include mold flash. Mold flash shall
not exceed 0.127 mm (0.005") per side. These dimensions are
measured at the outmost extremes of the plastic body
(3) Thermal pad contour optional within dimension E, L1, D1 and E1
(4)
(5)
(6)
3
Dimension b1 and c1 apply to base metal only
Controlling dimension: inches
Outline conform to JEDEC TO-262 except A1 (maximum),
b (minimum) , D1 (minimum) and L2 where dimensions derived
the actual package outline
Revision: 11-Jul-2019
Document Number: 95419
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
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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 in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay's knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer's responsibility to validate that a particular product
with the properties described in the product specification is suitable for use in a particular application. Parameters provided in
datasheets and / or specifications may vary in different applications and performance may vary over time. All operating
parameters, including typical parameters, must be validated for each customer application by the customer's technical experts.
Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited
to the warranty expressed therein.
Hyperlinks included in this datasheet may direct users to third-party websites. These links are provided as a convenience and
for informational purposes only. Inclusion of these hyperlinks does not constitute an endorsement or an approval by Vishay of
any of the products, services or opinions of the corporation, organization or individual associated with the third-party website.
Vishay disclaims any and all liability and bears no responsibility for the accuracy, legality or content of the third-party website
or for that of subsequent links.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
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. Product names and markings noted herein may be trademarks of their respective owners.
© 2023 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 01-Jan-2023
1
Document Number: 91000