B330LA & B340A
Vishay Semiconductors
formerly General Semiconductor
Document Number 88896
www.vishay.com
15-Dec-03
1
High-Current Density Surface Mount Schottky Rectifier
Reverse Voltage 30 & 40V
Forward Current 3.0A
0.157 (3.99)
0.177 (4.50)
0.006 (0.152)
0.012 (0.305)
0.030 (0.76)
0.060 (1.52)
0.008 (0.203) MAX.
0.194 (4.93)
0.208 (5.28)
0.100 (2.54)
0.110 (2.79)
0.078 (1.98)
0.090 (2.29)
0.049 (1.25)
0.065 (1.65)
Cathode Band
Mounting Pad Layout
Maximum Ratings and Thermal Characteristics
(T
A
= 25C unless otherwise noted)
Parameter
Symbol
B330LA
B340A
Unit
Device marking code
B33
B34
V
Maximum repetitive peak reverse voltage
V
RRM
30
40
V
Maximum RMS voltage
V
RMS
21
28
V
Maximum DC blocking voltage
V
DC
30
40
V
Maximum average forward rectified current
at T
L (See Fig. 1)
I
F(AV)
3.0
A
Peak forward surge current 8.3ms single half
sine-wave superimposed on rated load (JEDEC Method)
I
FSM
65
A
Typical thermal resistance
(2)
R
JA
110
R
JL
28
C/W
Voltage rate of change (rated V
R
)
dv/dt
10,000
V/s
Operating junction temperature range
T
J
-65 to +150
C
Storage temperature range
T
STG
-65 to +150
C
Electrical Characteristics
(T
A
= 25C unless otherwise noted)
Parameter
Symbol
Max.
Max.
Unit
Maximum instantaneous
T
J
=25C
V
F
0.50
0.55
V
forward voltage at 3.0A
(1)
Maximum DC reverse current
T
J
=25C
0.5
0.5
at rated DC blocking voltage
(1)
I
R
mA
Notes: (1) Pulse test: 300
s pulse width, 1% duty cycle
(2) Aluminum substrate mounted
Features
Low power loss, high efficiency
Low profile surface mount package
Built-in strain relief
For use in low voltage high frequency inverters, free
wheeling, and polarity protection applications
Guardring for overvoltage protection
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
Mechanical Data
Case: JEDEC DO-214AC molded plastic body
Terminals: Solder plated, solderable per
MIL-STD750, Method 2026
High temperature soldering guaranteed:
250C/10 seconds at terminals
Polarity: Color band denotes cathode end
Weight: 0.002 ounce, 0.064 gram
Dimensions in inches
and (millimeters)
DO-214AC (SMA)
0.094 MAX.
(2.38 MAX.)
0.220
(5.58) REF
0.066 MIN.
(1.68 MIN.)
0.052 MIN.
(1.32 MIN.)
New Product
1
10
100
0
20
40
60
80
Fig. 3 Typical Instantaneous
Forward Characteristics
Fig. 5 Typical Junction
Capacitance
Number of Cycles at 60 H
Z
Reverse Voltage (V)
P
eak F
o
rw
ard Surge Current (A)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
25
50
75
100
125
150
Fig. 1 Forward Current
Derating Curve
A
v
er
age F
o
rw
ard Current (A)
Lead Temperature (
C)
Fig. 2 Maximum Non-Repetitive
Peak Forward Surge Current
0.01
0.1
0.2
0.4
0.6
0.8
1.0
0.0
1
10
100
Instantaneous Forward Voltage (V)
Instantaneous F
o
rw
ard Current (A)
0
20
60
40
100
80
0.001
0.01
1
0.1
10
100
Fig. 4 Typical Reverse
Characteristics
Instantaneous Re
v
e
rse Current (mA)
Percent of Rated Peak Reverse Voltage (%)
pF - J
unction Capacitance
1
10
100
100
1000
10
T
J
= 25
C
T
J
= 125
C
0.1
0.3
0.5
0.7
0.9
B330LA
B340A
B330LA
B340A
B330LA
B340A
T
J
= 150
C
T
J
= 125
C
T
J
= 25
C
T
J
= 25
C
f = 1.0 MH
Z
Vsig = 50mVp-p
B330LA
B340A
B330LA & B340A
Vishay Semiconductors
formerly General Semiconductor
www.vishay.com
Document Number 88896
2
15-Dec-03
Ratings and
Characteristic Curves
(T
A
= 25C unless otherwise noted)
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