VS-20TQ035SPbF, VS-20TQ040SPbF, VS-20TQ045SPbF
D2PAK
PRODUCT SUMMARY
I
F(AV)
V
R
Schottky Rectifier, 20 A
Base
cathode
2
1
N/C Anode
35 V to 45 V
3
20 A
Vishay High Power Products
FEATURES
• 150 °C TJ 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
• 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-20TQ... 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 CHARACTERISTICS VALUES UNITS
I
F(AV)
V
I
FSM
V
T
RRM
F
J
Rectangular waveform 20 A
Range 35 to 45 V
tp = 5 μs sine 1800 A
20 Apk, TJ = 125 °C 0.51 V
Range - 55 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL VS-20TQ035SPbF VS-20TQ040SPbF VS-20TQ045SPbF 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
See fig. 7
Non-repetitive avalanche energy E
Repetitive avalanche current I
Document Number: 94168 For technical questions, contact: diodestech@vishay.com
Revision: 12-Mar-10 1
I
F(AV)
I
FSM
AR
50 % duty cycle at TC = 116 °C, rectangular waveform 20
5 μs sine or 3 μs rect. pulse
10 ms sine or 6 ms rect. pulse 400
TJ = 25 °C, IAS = 4 A, L = 3.40 mH 27 mJ
AS
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
1800
4A
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A
VS-20TQ035SPbF, VS-20TQ040SPbF, VS-20TQ045SPbF
Vishay High Power Products
Schottky Rectifier, 20 A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
20 A
Maximum forward voltage drop
See fig. 1
V
FM
40 A 0.73
(1)
20 A
40 A 0.67
Maximum reverse leakage current
See fig. 2
I
RM
Maximum junction capacitance C
Typical series inductance L
TJ = 25 °C
(1)
T
= 125 °C 105
J
VR = 5 VDC (test signal range 100 kHz to 1 MHz), 25 °C 1400 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
0.57
0.51
2.7
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
Typical thermal resistance,
case to heatsink
Approximate weight
Mounting torque
minimum 6 (5)
maximum 12 (10)
Marking device Case style D
T
, T
J
Stg
DC operation
R
thJC
R
thCS
See fig. 4
Mounting surface, smooth and greased 0.50
- 55 to 150 °C
1.50
2g
0.07 oz.
kgf ⋅ cm
(lbf ⋅ in)
2
PAK 20TQ045S
V
mA
°C/W
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Document Number: 94168
2 Revision: 12-Mar-10
VS-20TQ035SPbF, VS-20TQ040SPbF, VS-20TQ045SPbF
1000
100
(A)
10
Instantaneous
F -
I
1
Forward Current
0.1
TJ = 150 °C
= 125 °C
T
J
= 25 °C
T
J
0.2 0.6 1.2 1.6 1.81.40.80.40 1.0
VFM - Forward Voltage Drop (V)
Schottky Rectifier, 20 A
1000
100
10
0.1
- Reverse Current (mA)
R
0.01
I
0.001
Vishay High Power Products
TJ = 150 °C
TJ = 125 °C
= 100 °C
T
J
1
515 30
T
= 75 °C
J
T
= 50 °C
J
T
= 25 °C
J
25
VR - Reverse Voltage (V)
3520100
Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
10 000
40 45
TJ = 25 °C
- Junction Capacitance (pF)
T
C
100
10 20 30 400
VR - Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
10
1
0.1
D = 0.50
D = 0.33
0.01
- Thermal Impedance (°C/W)
thJC
Z
0.001
0.00001 0.0001 0.001 0.01 0.1 1
Single pulse
(thermal resistance)
D = 0.25
D = 0.17
D = 0.08
t1 - Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
50
Notes:
1. Duty factor D = t
2. Peak TJ = PDM x Z
Characteristics
thJC
P
DM
t
1
t
2
1/t2
+ T
thJC
C
10 100
Document Number: 94168 For technical questions, contact: diodestech@vishay.com
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Revision: 12-Mar-10 3
VS-20TQ035SPbF, VS-20TQ040SPbF, VS-20TQ045SPbF
Vishay High Power Products
155
20TQ
(DC) = 1.50 °C/W
R
145
135
125
Allowable Case Temperature (°C)
115
52025
I
- Average Forward Current (A)
F(AV)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
thJC
DC
15
100
10 000
Schottky Rectifier, 20 A
Average Power Loss (W)
30
At any rated load condition
and with rated V
following surge
RRM
applied
18
D = 0.08
16
D = 0.17
D = 0.25
14
D = 0.33
D = 0.50
12
10
8
6
4
2
0
515 302010025
I
- Average Forward Current (A)
F(AV)
DC
RMS limit
Fig. 6 - Forward Power Loss Characteristics
1000
- Non-Repetitive Surge Current (A)
100
FSM
I
t
- Square Wave Pulse Duration (µs)
p
100
Fig. 7 - Maximum Non-Repetitive Surge Current
L
D.U.T.
Current
monitor
IRFP460
= 25 Ω
R
g
Fig. 8 - Unclamped Inductive Test Circuit
100010
High-speed
Freewheel
diode
40HFL40S02
switch
10 000
V
= 25 V
d
+
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Document Number: 94168
4 Revision: 12-Mar-10
VS-20TQ035SPbF, VS-20TQ040SPbF, VS-20TQ045SPbF
ORDERING INFORMATION TABLE
Device code
VS- 20 T Q 045 S TRL PbF
1 - HPP product suffix
2 - Current rating (20 A)
3
- Package: T = TO-220
4 - Schottky “Q” series
5 - Voltage ratings
- S = D
6
-
7
8
- PbF = Lead (Pb)-free
Schottky Rectifier, 20 A
324
2
PAK
None = Tube (50 pieces)
TRL = Tape and reel (left oriented)
TRR = Tape and reel (right oriented)
51
678
035 = 35 V
040 = 40 V
045 = 45 V
Vishay High Power Products
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: 94168 For technical questions, contact: diodestech@vishay.com
Revision: 12-Mar-10 5
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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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