VS-20MQ040NPbF
Vishay High Power Products
Schottky Rectifier, 2.1 A
FEATURES
• Small foot print, surface mountable
• Low forward voltage drop
• High frequency operation
Cathode
Anode
• Guard ring for enhanced ruggedness and long term
reliability
• Meets MSL level 1, per J-STD-020, LF maximum peak of
260 °C
• Compliant to RoHS directive 2002/95/EC
• Designed and qualified for industrial level
SMA
PRODUCT SUMMARY
I
F(AV)
V
R
2.1 A
40 V
DESCRIPTION
The VS-20MQ040NPbF surface mount Schottky rectifier
has been designed for applications requiring low forward
drop and very small foot prints on PC boards. Typical
applications are in disk drives, switching power supplies,
converters, freewheeling diodes, battery charging, and
reverse battery protection.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
I
F(AV)
V
RRM
I
FSM
V
F
T
J
t
p
= 5 μs sine
2 Apk, T
J
= 125 °C
Range
CHARACTERISTICS
Rectangular waveform
VALUES
2.1
40
120
0.63
- 55 to 150
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
V
R
V
RWM
VS-20MQ040NPbF
40
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average forward current
See fig. 4
Maximum peak one cycle
non-repetitive surge current
See fig. 6
Non-repetitive avalanche energy
Repetitive avalanche current
SYMBOL
I
F(AV)
TEST CONDITIONS
50 % duty cycle at T
C
= 110 °C, rectangular waveform
On PC board 9 mm
2
island (0.013 mm thick copper pad area)
5 μs sine or 3 μs rect. pulse
I
FSM
10 ms sine or 6 ms rect. pulse
E
AS
I
AR
T
J
= 25 °C, I
AS
= 1 A, L = 6 mH
Current decaying linearly to zero in 1 μs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
Following any rated
load condition and with
rated V
RRM
applied
VALUES
2.1
120
A
30
3
1.0
mJ
A
UNITS
A
Document Number: 94593
Revision: 04-Mar-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
1
VS-20MQ040NPbF
Vishay High Power Products
Schottky Rectifier, 2.1 A
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
2A
1.5 A
Maximum forward voltage drop
See fig. 1
V
FM (1)
1A
2A
1.5 A
1A
Maximum reverse leakage current
See fig. 2
Threshold voltage
Forward slope resistance
Typical junction capacitance
Typical series inductance
Maximum voltage rate of change
Note
(1)
Pulse width < 300 μs, duty cycle < 2 %
I
RM (1)
V
F(TO)
r
t
C
T
L
S
dV/dt
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
maximum
V
R
= 10 V
DC
, T
J
= 25 °C, test signal = 1 MHz
Measured lead to lead 5 mm from package body
Rated V
R
V
R
= Rated V
R
T
J
= 125 °C
T
J
= 25 °C
TEST CONDITIONS
VALUES
0.69
0.62
0.54
0.63
0.56
0.49
0.5
26
0.36
104
38
2.0
10 000
mA
V
mΩ
pF
nH
V/μs
V
UNITS
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
Maximum junction and
storage temperature range
Maximum thermal resistance,
junction to ambient
Approximate weight
Marking device
Note
(1)
SYMBOL
T
J (1)
, T
Stg
R
thJA
DC operation
TEST CONDITIONS
VALUES
- 55 to 150
80
0.07
0.002
UNITS
°C
°C/W
g
oz.
V2F
Case style SMA (similar D-64)
dP
tot
1
------------ < -------------
thermal runaway condition for a diode on its own heatsink
-
-
dT
J
R
thJA
www.vishay.com
2
For technical questions, contact:
diodestech@vishay.com
Document Number: 94593
Revision: 04-Mar-10
VS-20MQ040NPbF
Schottky Rectifier, 2.1 A
Vishay High Power Products
100
10
Junction Capacitance - C
T
(pF)
T
J
= 25°C
Tj = 150˚C
Instantaneous Forward Curent - I
F
(A)
Tj = 125˚C
Tj = 25˚C
10
0
5
10
15
20
25
30
35
40
Reverse Voltage - V
R
(V)
1
Fig. 3 - Typical Junction Capacitance vs.
Reverse Voltage
0.1
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
160
150
140
130
120
110
100
90
80
70
60
50
40
Allowable case temperature (°C)
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
Square wave (D=0.50)
rated Vr applied
see note (1)
Forward Voltage Drop - V
FM
(V)
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Average forward current- I
F(AV)
(A)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Fig. 4 - Maximum Average Forward Current vs.
Allowable Lead Temperature
1.4
Average Power Loss - (Watts)
1.2
1
0.8
0.6
0.4
0.2
0
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS Limit
DC
100
10
1
0.1
0.01
0.001
0.0001
0
5
10
15
20
25
30
35
40
Reverse Voltage - V
R
(V)
Reverse Current - I
R
(mA)
T
J
= 150°C
125°C
100°C
75°C
50°C
25°C
0
0.4
0.8
1.2
1.6
2
2.4
Average Forward Current - I
F(AV)
(A)
Fig. 2 - Typical Peak Reverse Current vs.
Reverse Voltage
Fig. 5 - Maximum Average Forward Dissipation vs.
Average Forward Current
Note
(1)
Formula used: T = T - (Pd + Pd
C
J
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 6); Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= 80 % rated V
R
Document Number: 94593
Revision: 04-Mar-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
3
VS-20MQ040NPbF
Vishay High Power Products
Schottky Rectifier, 2.1 A
100
Non-R
epetitive S
urge Current - I
FS
M
(A)
At Any R
ated Load Condition
And With Rated V
RRM
Applied
Following S
urge
10
10
100
1000
10000
S
quare Wave Pulse Duration - t p (microsec)
Fig. 6 - Maximum Peak Surge Forward Current vs. Pulse Duration
ORDERING INFORMATION TABLE
Device code
VS-
1
1
2
3
4
5
6
7
8
-
-
-
-
-
-
-
-
20
2
M
3
Q
4
040
5
N
6
TR
7
PbF
8
HPP product suffix
Current rating
M = SMA
Q = Schottky “Q” series
Voltage rating (040 = 40 V)
N = New SMA
None = Box (1000 pieces)
TR = Tape and reel (7500 pieces)
PbF = Lead (Pb)-free
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
Packaging information
Tape and reel
Bulk
www.vishay.com/doc?95018
www.vishay.com/doc?95029
www.vishay.com/doc?95034
www.vishay.com/doc?95397
www.vishay.com
4
For technical questions, contact:
diodestech@vishay.com
Document Number: 94593
Revision: 04-Mar-10
Outline Dimensions
Vishay High Power Products
SMA
DIMENSIONS
in millimeters (inches)
1.40 (0.055)
1.60 (0.062)
2.50 (0.098)
2.90 (0.114)
1
2
4.00 (0.157)
4.60 (0.181)
1
Polarity
2
Part Number
0.152 (0.006)
0.305 (0.012)
2.00 (0.078)
2.44 (0.096)
0.103 (0.004)
0.203 (0.008)
2.10 MAX.
(0.085 MAX. )
1.47 MIN.
(0.058 MIN.)
0.76 (0.030)
1.52 (0.060)
4.80 (0.188)
5.28 (0.208)
1.27 MIN.
(0.050 MIN.)
5.53 (0.218)
Soldering pad
Document Number: 95018
Revision: 25-Jun-07
For technical questions concerning discrete products, contact: diodes-tech@vishay.com
For technical questions concerning module products, contact: ind-modules@vishay.com
www.vishay.com
1
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