SMD Schottky Barrier Diodes
COMCHIP
www.comchip.com.tw
CDBW0520 - CDBW0540
Voltage: 20- 40 Volts
Current: 0.5 Amp
Feature
Low turn-on voltage
Fast switching
.
028(0.70)
.
019(0.50)
SOD-123
.154 (3.90)
.141 (3.60)
.
071(1.80)
.
053(1.35)
PN junction guard ring for transient and
ESD protection
.110 (2.80)
.098 (2.50)
Mechanical data
Case: SOD-123, molded plastic
Terminals: solderable per MIL-STD-750,
method 2026
Polarity: Indicated by cathode band
Mounting position: Any
Dimensions in inches and (millimeters)
.
008(0.20) Max.
.
037(0.95)
.005 (.12) MAX.
.016 (.40)Min.
Weight:0.008 grams
Maximum Ratings and Electrical Characterics
Parameter
Max.RepetitivePeak Reverse Voltage
Max. DC Blocking Voltage
Max. RMS Voltage
Peak Surge Forward Current
8.3ms single half sine-wave
Sine-wave superimposed on
Rate load ( JEDEC )
Max. AverageForward Current
Max. Forward Current at 0.1 A
0.5 A
Max. Reverse Current
Symbol
V
RRM
V
DC
V
RMS
I
FSM
CDBW0520
20
14
20
CDBW0530
30
21
30
5.5
CDBW0540
40
28
40
.
055(1.40)
Unit
V
V
V
A
Io
V
F
I
R
0.3
0.385
0.075 @ V
R
=10V
0.25 @ V
R
=20V
0.5
0.375
0.430
0.02 @ V
R
=15V
0.13 @ V
R
=30V
206
150
-55 to +125
A
V
0.51
0.01@ V
R
=20V
0.02 @ V
R
=40V
C/W
mA
Max. Thermal Resistance
R
R
JA
JL
Operating junction temperature
Storage temperature
Tj
T
STG
C
-55 to +125
C
Note 1: Thermal resistance from junction to ambient and junction to to lead P.C.B. Mounted on 0.2 x 0.2 copper pad areas
MDS0208001B
Page 1
SMD Schottky Barrier Diodes
COMCHIP
www.comchip.com.tw
RATING AND CHARACTERISTIC CURVES (CDBW0520-0540)
Fig. 1 - Reverse Characteristics
100
Fig. 2 - Reverse Characteristics
Reverse Current ( uA )
10
Tj=25 C
Reverse Current ( uA )
10000
1
1000
Tj=100 C
0.1
Tj=75 C
0.01
1000
0
5
10
15
20
25
0
5
10
15
20
25
Reverse Voltage (V)
Reverse Voltage (V)
Fig. 3 - Forward Characteristics
10
0.6
Fig. 4 - Current Derating Curve
Mounting on glass epoxy PCBs
1
Tj=100 C
Average Forward Current ( A )
0.5
0.5
Forward Current ( A )
0.4
0.3
0.1
Tj=25 C
0.2
0.1
0.01
0.1
0.2
0.3
0.4
0
25
50
75
100
125
150
Forward Voltage (V)
Ambient Temperature ( C)
Fig. 3 - Capacitance Between
Terminals characteristics
200
Capacitance Between Terminals (pF)
150
100
50
0
5
10
15
20
25
Reverse Voltage (V)
MDS0208001B
Page 2
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