20TQ035 [VISHAY]
Schottky Rectifier, 20 A; 肖特基整流器， 20 A
| 型号： | 20TQ035 |
| 厂家： | 
VISHAY |
| 描述： | Schottky Rectifier, 20 A |
| 文件： | 总6页 (文件大小：118K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
20TQ... Series
Vishay High Power Products
Schottky Rectifier, 20 A
FEATURES
• 150 °C TJ operation
• Low forward voltage drop
• High frequency operation
Base
cathode
2
• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
• Guard ring for enhanced ruggedness and long term
reliability
1
3
Cathode Anode
TO-220AC
• Designed and qualified for industrial level
DESCRIPTION
The 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.
PRODUCT SUMMARY
IF(AV)
20 A
VR
35 to 45 V
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
IF(AV)
VRRM
IFSM
CHARACTERISTICS
VALUES
20
UNITS
Rectangular waveform
A
V
Range
35 to 45
1800
tp = 5 µs sine
20 Apk, TJ = 125 °C
Range
A
VF
0.51
V
TJ
- 55 to 150
°C
VOLTAGE RATINGS
PARAMETER
SYMBOL
20TQ035
20TQ040
20TQ045
45
UNITS
Maximum DC reverse voltage
VR
35
40
V
Maximum working peak reverse voltage
VRWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
TEST CONDITIONS
VALUES UNITS
Maximum average forward current
See fig. 5
IF(AV)
50 % duty cycle at TC = 116 °C, rectangular waveform
20
A
Maximum peak one cycle
non-repetitive surge current
See fig. 7
Following any rated load
condition and with rated
5 µs sine or 3 µs rect. pulse
1800
IFSM
10 ms sine or 6 ms rect. pulse
TJ = 25 °C, IAS = 4 A, L = 3.4 mH
400
V
RRM applied
Non-repetitive avalanche energy
Repetitive avalanche current
EAS
IAR
27
4
mJ
A
Current decaying linearly to zero in 1 µs
Frequency limited by TJ maximum VA = 1.5 x VR typical
Document Number: 93278
Revision: 25-Jun-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
1
20TQ... Series
Schottky Rectifier, 20 A
Vishay High Power Products
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
TEST CONDITIONS
VALUES
0.57
UNITS
20 A
TJ = 25 °C
40 A
0.73
Maximum forward voltage drop
See fig. 1
(1)
VFM
V
20 A
0.51
TJ = 125 °C
40 A
0.67
TJ = 25 °C
2.7
Maximum reverse leakage curent
See fig. 2
(1)
IRM
V
R = Rated VR
mA
TJ = 125 °C
105
Maximum junction capacitance
Typical series inductance
CT
LS
VR = 5 VDC, (test signal range 100 kHz to 1 MHz) 25 °C
Measured lead to lead 5 mm from package body
Rated VR
1400
8.0
pF
nH
Maximum voltage rate of change
dV/dt
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
TJ, TStg
- 55 to 150
°C
Maximum thermal resistance,
junction to case
DC operation
See fig. 4
RthJC
RthCS
1.50
0.50
°C/W
Typical thermal resistance,
case to heatsink
Mounting surface, smooth and greased
2
g
Approximate weight
0.07
oz.
minimum
maximum
6 (5)
kgf · cm
(lbf · in)
Mounting torque
Marking device
12 (10)
20TQ035
Case style TO-220AC
20TQ040
20TQ045
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2
For technical questions, contact: diodes-tech@vishay.com
Document Number: 93278
Revision: 25-Jun-08
20TQ... Series
Schottky Rectifier, 20 A
Vishay High Power Products
1000
1000
100
10
TJ = 150 °C
100
10
TJ = 125 °C
TJ = 100 °C
1
TJ = 75 °C
TJ = 50 °C
TJ = 150 °C
TJ = 125 °C
TJ = 25 °C
0.1
1
0.01
0.001
TJ = 25 °C
0.1
0
5
10 15 20 25 30 35 40 45
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
VFM - Forward Voltage Drop (V)
VR - Reverse Voltage (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
10 000
1000
TJ = 25 °C
100
10
20
30
40
50
VR - Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
10
1
PDM
0.1
0.01
t1
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
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
Document Number: 93278
Revision: 25-Jun-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
3
20TQ... Series
Schottky Rectifier, 20 A
Vishay High Power Products
155
18
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
20TQ
16
14
12
10
8
RthJC (DC) = 1.50 °C/W
145
135
RMS limit
DC
DC
20
6
125
115
4
2
0
0
5
10
15
30
25
0
5
10
15
20
25
30
IF(AV) - Average Forward Current (A)
IF(AV) - Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
10 000
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
L
High-speed
switch
IRFP460
D.U.T.
Freewheel
diode
Rg = 25 Ω
V
d = 25 V
+
Current
monitor
40HFL40S02
Fig. 8 - Unclamped Inductive Test Circuit
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For technical questions, contact: diodes-tech@vishay.com
Document Number: 93278
Revision: 25-Jun-08
20TQ... Series
Schottky Rectifier, 20 A
Vishay High Power Products
ORDERING INFORMATION TABLE
Device code
20
T
Q
045
-
1
2
3
4
5
1
2
-
-
Current rating (20 = 20 A)
Package:
T = TO-220
3
4
5
-
-
-
Schottky “Q” series
Voltage ratings
035 = 35 V
040 = 40 V
045 = 45 V
None = Standard production
PbF = Lead (Pb)-free
Tube standard pack quantity: 50 pieces
LINKS TO RELATED DOCUMENTS
Dimensions
http://www.vishay.com/doc?95221
http://www.vishay.com/doc?95224
Part marking information
Document Number: 93278
Revision: 25-Jun-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
5
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
Revision: 18-Jul-08
www.vishay.com
1
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