CDBT-40-G

Small Signal Schottky Diodes
CDBT-40/S/C/A-G
Reverse Voltage: 40 Volts
Forward Current: 200 mA
RoHS Device
Features
SOT-23
-Design for mounting on small surface.
0.118(3.00)
-High speed switching application, circuit
protection.
0.110(2.80)
3
-Low forward voltage drop.
0.055(1.40)
0.047(1.20)
1
Mechanical data
2
0.079(2.00)
0.071(1.80)
-Case: SOT-23, molded plastic.
-Terminals: solderable per MIL-STD-750,
method 2026.
0.006(0.15)
0.003(0.08)
-Approx. weight: 0.0078 grams
0.041(1.05)
0.100(2.55)
0.035(0.90)
0.089(2.25)
Circuit diagram
0.004(0.10) max
3
3
3
3
0.020(0.50)
0.020(0.50)
0.012(0.30)
1
2
1
CDBT-40-G
Marking Code: 43
2
1
2
1
CDBT-40S-G
CDBT-40C-G
Marking Code: 44 Marking Code: 45
0.012(0.30)
2
CDBT-40A-G
Marking Code: 46
Dimensions in inches and (millimeter)
Maximum Ratings (at Ta=25°C unless otherwise noted)
Parameter
Symbol
Value
Unit
VRRM
VRWM
VR
40
V
Forward continuous current
IFM
200
mA
Power dissipation
PD
200
mW
RθJA
625
°C/W
Junction temperature
TJ
125
°C
Storage temperature
TSTG
-65 to +125
°C
Peak repetitive peak reverse voltage
Working peak reverse voltage
DC blocking voltage
Thermal resistance, junction to ambient
Electrical Characteristics (at Ta=25°C unless otherwise noted)
Parameter
Reverse breakdown voltage
Symbol
Conditions
Min.
Max.
Unit
VBR
IR=10μA
Reverse voltage leakage current
IR
VR=30V
200
nA
Forward voltage
VF
IF=1mA
IF=40mA
380
1000
mV
Diode capacitance
CD
VR=0V, f=1.0MHz
5
pF
Reverse recovery time
Trr
Irr=1mA, IF=IR=10mA,
RL=100Ω
5
nS
40
V
Company reserves the right to improve product design , functions and reliability without notice.
REV:C
Page 1
QW-BA001
Comchip Technology CO., LTD.
Small Signal Schottky Diodes
RATING AND CHARACTERISTIC CURVES (CDBT-40/S/C/A-G)
Fig.1 - Forward Characteristics
Fig.2 - Reverse Characteristics
1000
10000
TA=125 OC
Revverse Current, IR (nA)
Forward Current, IF (mA)
1000
100
TA=125 OC
10
O
TA=-40 C
TA=0 OC
TA=25 OC
1
O
TA=75 C
100
TA=75 OC
0.1
TA=25 OC
1
TA=-40 C
TA=0 OC
O
0.1
0
0.2
0.4
0.6
0.8
0
1.0
10
30
20
40
Forward Voltage, VF (V)
Reverse Voltage, VR (V)
Fig.3 - Capacitance Between Terminals
Characteristics
Fig.4 - Power Derating Curve
50
240
5
Mounted on glass epoxy PCBs
TJ=25°C
f=1MHz
200
4
Power Dissipation, PD (mW)
Capacitance Between Terminals, CT (pF)
10
3
2
1
160
120
80
40
0
0
0
10
20
30
40
50
0
25
50
75
100
125
150
Ambient Temperature, TA (°C)
Reverse Voltage, VR (V)
Company reserves the right to improve product design , functions and reliability without notice.
REV:C
Page 2
QW-BA001
Comchip Technology CO., LTD.
Small Signal Schottky Diodes
Reel Taping Specification
P1
F
E
d
P0
B
XX
12
o
0
D2
D1 D
W1
SOT-23
SOT-23
SYMBOL
A
B
C
d
D
D1
D2
(mm)
3.15 ± 0.10
2.77 ± 0.10
1.22 ± 0.10
1.50 ± 0.10
178.00 ± 2.00
54.40 ± 1.00
13.00 ± 1.00
(inch)
0.124 ± 0.004
0.109 ± 0.004
0.048 ± 0.004
0.059 ± 0.004
7.008 ± 0.079
2.142 ± 0.039
0.512 ± 0.039
SYMBOL
E
F
P
P0
P1
W
W1
(mm)
1.75 ± 0.10
3.50 ± 0.10
4.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.10
8.00 + 0.30 / - 0.10
12.30 ± 1.00
(inch)
0.069 ± 0.004
0.138 ± 0.004
0.157 ± 0.004
0.157 ± 0.004
0.079 ± 0.004 0.315 + 0.012 / - 0.004
0.484 ± 0.039
Company reserves the right to improve product design , functions and reliability without notice.
REV:C
Page 3
QW-BA001
Comchip Technology CO., LTD.
Small Signal Schottky Diodes
Marking Code
3
Marking Code
Part Number
CDBT-40-G
43
CDBT-40S-G
44
CDBT-40C-G
45
CDBT-40A-G
46
XX
1
2
xx = Product type marking code
Suggested PAD Layout
B
SOT-23
SIZE
(mm)
(inch)
A
0.80
0.031
B
0.60
0.024
C
1.90
0.075
D
2.02
0.080
E
2.82
0.111
A
D
E
C
Standard Packaging
Case Type
SOT-23
Qty Per Reel
Reel Size
(Pcs)
(inch)
3,000
7
Company reserves the right to improve product design , functions and reliability without notice.
REV:C
Page 4
QW-BA001
Comchip Technology CO., LTD.
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