PATENT
ED
MSCD302 THRU MSCD304
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
Reverse Voltage - 20 to 40 Volts Forward Current - 3.0 Amperes
FEATURES
MECHANICAL DATA
* Plastic package has Underwriters Laboratory Flammability
Classification 94V-0
* For surface mounted applications
* Low profile package
* Built-in strain relief
* Metal to silicon rectifier , majority carrier conduction
* Low power loss , High efficiency
* High current capability , low VF
* High surge capacity
* For using in low voltage high frequency switching power supply,
inverters , free wheeling , and polarity protection applications
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature
unless otherwise specified.
Maximum repetitive peak reverse voltage
Maximum instantaneous forward voltage at 1.0 A (NOTE 1)
Maximum DC reverse current
at 10 V (NOTE 1)
@T
J
=25
o
C
@T
J
=100
o
C
Typical thermal resistance (NOTE 2)
Storage temperature range
Operating junction temperature range
SYMBOLS
V
RRM
V
F
I
R
R
JA
T
J
T
STG
0.45
0.50
25
500
88
R
JL
28
150
-55 to +150
UNITS
Volts
Maximum RMS voltage
V
RMS
Volts
Maximum DC blocking voltage
V
DC
MSCD302
20
14
20
MSCD304
40
28
40
Volts
Volts
Maximum average forward rectified current
I
O
3.0
Amps
Peak forward surge current 8.3ms single half sine-wave
I
FSM
10
Amps
uA
o
C / W
o
C
o
C
NOTES : (1) Pulse test width PW=300usec , 1% duty cycle.
(2) Mounted on P.C. board with 0.2 x 0.2"(5.0 x5.0mm) copper pad areas.
*Dimensions in inches and (millimeters)
TM
PATENT
ED
PATENT
ED
Zowie Technology Corporation
04/2003
PRELIMINARY
0805
.083(2.10)
R 0.
011
(0.2
75)
.075(1.90)
.024(0.60)
.016(0.40)
.024(0.60)
.016(0.40)
.
0
5
5
(
1
.
4
0
)
.
0
3
9
(
1
.
0
0
)
.
0
4
7
(
1
.
2
0
)
.
0
4
2
(
1
.
0
5
)
.
0
3
4
(
0
.
8
5
)
.002(0.05)
Case : Packed with FRP substrate and epoxy underfilled
Terminals : Solder plated , solderable per MIL-STD-750,
Method 2026
Polarity : Laser marking
Weight : 0.005 gram
Marking : MSCD302 = K2
MSCD304 = K4
RATINGS AND CHARACTERISTIC CURVES MSCD302 THRU MSCD304
FIG.1 - FORWARD CURRENT DERATING CURVE
FIG.3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
A
V
E
R
A
G
E
F
O
R
W
A
R
D
R
E
C
T
I
F
I
E
D
C
U
R
R
E
N
T
,
A
M
P
E
R
E
S
3
1
2
I
I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
W
A
R
D
C
U
R
R
E
N
T
,
A
M
P
E
R
E
S
0.10
1.00
10.00
0.01
0
0.2
0.4
0.6
0.8
1.0
1.2
0
0
40
20
60
80
100 120 140 160
RESISTIVE OR
INDUCTIVE LOAD
P.C.B. MOUNTED ON
0.2X0.2"(5.0X5.0mm)
COPPER PAD AREAS
LEAD TEMPERATURE,
o
C
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
FIG.2 - MAXIMUM NON-REPETITIVE
PEAK FORWARD SURGE CURRENT
P
E
A
K
F
O
R
W
A
R
D
S
U
R
G
E
C
U
R
R
E
N
T
,
A
M
P
E
R
E
S
NUMBER OF CYCLES AT 60Hz
8.3ms Single Half Sine-Wave
(JEDEC Method)
0
2
4
6
10
8
12
1
10
100
FIG.4 - TYPICAL REVERSE CHARACTERISTICS
PERCENT OF RATED PEAK REVERSE VOLTAGE,%
I
N
S
T
A
N
T
A
N
E
O
U
S
R
E
V
E
R
S
E
C
U
R
R
E
N
T
,
M
I
L
L
I
A
M
P
E
R
E
S
0.01
.001
0
20
0.10
1.0
10
100
T
J
=80
o
C
T
J
=25
o
C
40
60
80
100
FIG.5 - TYPICAL JUNCTION CAPACITANCE
T
J
= 25
o
C
f=1.0MHz
Vsig=50mVP-P
REVERSE VOLTAGE, VOLTS
.1
J
U
N
C
T
I
O
N
C
A
P
A
C
I
T
A
N
C
E
,
p
F
400
1.0
10
100
100
10
Zowie Technology Corporation
04/2003
MSCD302
MSCD304
PDF 
ZIP