Small Signal Schottky Diodes
Reverse Voltage: 40 Volts
Forward Current: 200 mA
RoHS Device
Page 1
REV:B
Features
-Design for mounting on small surface.
-High speed switching application, circuit
protection.
-Low turn-on voltage.
Mechanical data
-Case: SOT-323, molded plastic.
-Terminals: solderable per MIL-STD-750,
method 2026.
-Approx. weight: 0.006 grams
Circuit diagram
CDBV3-40/S/C/A-G
QW-BA005
Comchip Technology CO., LTD.
CDBV3-40-G
Marking Code:43
1 2
3
CDBV3-40S-G
Mark Code:44
1 2
3
CDBV3-40C-G
Marking Code: 45
1 2
3
CDBV3-40A-G
Marking Code: 46
1 2
3
Reverse breakdown voltage
Reverse voltage leakage current
Forward voltage
Diode capacitance
Reverse recovery time
UnitsSymbolParameter
VBR
IR
VF
CD
Trr
Conditions Min.
IR=10μA
VR=30V
IF=1mA
IF=40mA
VR=0V, f=1.0MHz
Irr=1mA, IF=IR=10mA,
RL=100Ω
40 V
nA
mV
pF
nS
Peak repetitive peak reverse voltage
Working peak reverse voltage
DC blocking voltage
Forward continuous current
Peak surge forward current (T=1.0sec)
Power dissipation
Thermal resistance, junction to ambient
Junction temperature
Storage temperature
UnitsSymbolParameter
VRRM
VRWM
VR
IFM
IFSM
PD
RθJA
TJ
TSTG
Value
40
200
0.6
150
833
125
-65 to +125
V
mA
A
mW
OC/W
OC
OC
Max.
200
380
1000
5
5
Maximum Ratings (at Ta=25°C unless otherwise noted)
Electrical Characteristics (at Ta=25°C unless otherwise noted)
Company reserves the right to improve product design , functions and reliability without notice.
Dimensions in inches and (millimeter)
SOT-323
3
1 2
0.087(2.20)
0.079(2.00)
0.053(1.35)
0.045(1.15)
0.055(1.40)
0.047(1.20)
0.043(1.10)
0.035(0.90)
0.016(0.40)
0.008(0.20)
0.006(0.15)
0.003(0.08)
0.096(2.45)
0.085(2.15)
0.004(0.10)
0.010(0.26)
0.018(0.46)
0.000(0.00)
QW-BA005
RATING AND CHARACTERISTIC CURVES (CDBV3-40/S/C/A-G)
Forward Voltage (V)
1.00.60.4 0.80
Fig.1 Forward Characteristics
0.1
1
10
100
1000
Fra d u rent mA)
ow r C r (
Reverse Voltage (V)
0
Fig.2 Reverse Characteristics
0.1
Rev er e Curr nt (nA)
s e
1
10
100
10000
20
Reverse Voltage (V)
0
Fig.3 Capacitance Between Terminals
Characteristics
0
Capac ta c Bet een Te rmin ls (p )
i n e w a F
1
2
4
5
30 60 70
O
Ambient Temperature ( C)
Fig.4 Power Derating Curve
0
Power Dis sipation (mW)
200
400
Comchip Technology CO., LTD.
Page 2
REV:B
30 50
3
0 100 175
0.2 10 40
100
O
TA=125 C
20 25 50 75 150125
300
Small Signal Schottky Diodes
O
TA=-40 C
O
TA=0 C
O
TA=25 C
O
TA=75 C
1000
O
TA=125 C
O
TA=-40 C
O
TA=0 C
O
TA=25 C
O
TA=75 C
10 5040
O
TJ=25 C
f=1MHz
Mounted on glass
epoxy PCBs
Company reserves the right to improve product design , functions and reliability without notice.
QW-BA005
Comchip Technology CO., LTD.
Page 3
REV:B
Small Signal Switching Diodes
Reel Taping Specification
Company reserves the right to improve product design , functions and reliability without notice.
B C dD D2D1
SOT-323
SYMBOL
(mm)
(inch) 2.142 ± 0.039
4.00 ± 0.10
1.55 ± 0.10 54.40 ± 1.00 13.00 ± 1.00
4.00 ± 0.10 2.00 ± 0.10
178 ± 2.00
0.061 ± 0.004 7.008 ± 0.079 0.512 ± 0.039
SYMBOL
(mm)
(inch) 0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.004
E F P P0P1W W1
1.75 ± 0.10
0.069 ± 0.004
3.50 ± 0.10
0.138 ± 0.004
SOT-323
2.25 ± 0.05
0.089 ± 0.002
2.55 ± 0.05
0.100 ± 0.002
1.19 ± 0.05
0.047 ± 0.002
12.30 ± 1.00
0.484 ± 0.039
8.00 + 0.30 /–0.10
0.315 + 0.012 /–0.004
d
F E
B
P1 P0
o
120
D1
D2
W1
P
D
A
W
C
A
XXX
3
1 2
QW-BA005
Comchip Technology CO., LTD.
Page 4
REV:B
Part Number
CDBV3-40-G
Marking Code
43
Marking Code
CDBV3-40S-G 44
CDBV3-40C-G 45
XX
3
1 2
xx/ = Product type marking codexxx
CDBV3-40A-G 46
Small Signal Switching Diodes
Company reserves the right to improve product design , functions and reliability without notice.
Standard Packaging
Case Type
SOT-323 3,000
REEL
( pcs )
Reel Size
(inch)
7
REEL PACK
Suggested PAD Layout
SIZE
(inch)
0.031
(mm)
0.80
0.50
1.30
0.020
0.051
SOT-323
2.20 0.087
A
B
C
D
A
C
D
B