D2PAK
PRODUCT SUMMARY
I
F(AV)
V
R
I
RM
Schottky Rectifier, 20 A
Base
cathode
2
1
N/C Anode
600 mA at 100 °C
3
20 A
15 V
VS-20L15TSPbF
Vishay High Power Products
FEATURES
• 125 °C TJ operation (VR < 5 V)
• Single diode configuration
• Optimized for OR-ing applications
• Ultralow forward voltage drop
• Guard ring for enhanced ruggedness and long
term reliability
• High purity, high temperature epoxy
encapsulation for enhanced mechanical
strength and moisture resistance
• 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 Schottky rectifier module has been optimized for ultra
low forward voltage drop specifically for the OR-ing of
parallel power supplies. The proprietary barrier technology
allows for reliable operation up to 125 °C junction
temperature. Typical applications are in parallel switching
power supplies, converters, reverse battery protection, and
redundant power subsystems.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
I
F(AV)
V
I
FSM
V
T
RRM
F
J
Rectangular waveform 20 A
15 V
tp = 5 μs sine 700 A
19 Apk, TJ = 125 °C (typical) 0.25 V
Range - 55 to 125 °C
VOLTAGE RATINGS
PARAMETER SYMBOL TEST CONDITIONS VS-20L15TSPbF UNITS
Maximum DC reverse voltage V
Maximum working peak reverse voltage V
R
RWM
TJ = 100 °C 15 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
I
F(AV)
I
FSM
AR
50 % duty cycle at TC = 85 °C, rectangular waveform 20
5 μs sine or 3 μs rect. pulse
10 ms sine or 6 ms rect. pulse 330
TJ = 25 °C, IAS = 2 A, L = 6 mH 10 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
700
2A
A
Document Number: 94166 For technical questions, contact: diodestech@vishay.com
Revision: 12-Mar-10 1
www.vishay.com
VS-20L15TSPbF
Vishay High Power Products
Schottky Rectifier, 20 A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS TYP. MAX. UNITS
19 A
Forward voltage drop
See fig. 1
V
FM
40 A - 0.52
(1)
19 A
40 A 0.37 0.50
Reverse leakage current
See fig. 2
I
RM
Threshold voltage V
Forward slope resistance r
Maximum junction capacitance C
Typical series inductance L
F(TO)
TJ = 25 °C
(1)
T
= 100 °C - 600
J
TJ = TJ maximum
t
VR = 5 VDC, (test signal range 100 kHz to 1 MHz), 25 °C - 2000 pF
T
Measured lead to lead 5 mm from package body 8 - 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
-0.41
0.25 0.33
-10
0.182 V
7.6 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
temperature range
Maximum storage
temperature range
Maximum thermal resistance,
junction to case
Typical thermal resistance,
case to heatsink
Maximum thermal resistance,
junction to ambient
Approximate weight
Mounting torque
minimum
maximum 12 (10)
Marking device Case style D
T
J
T
Stg
R
thJC
R
thCS
R
thJA
DC operation
See fig. 4
Mounting surface, smooth and greased
(For TO-220)
DC operation 40
Non-lubricated threads
2
PAK 20L15TS
- 55 to 125
°C
- 55 to 150
1.5
0.50
°C/W
2g
0.07 oz.
6 (5)
kgf ⋅ cm
(lbf ⋅ in)
V
mA
www.vishay.com For technical questions, contact: diodestech@vishay.com
Document Number: 94166
2 Revision: 12-Mar-10