CDST-70-HF

Small Signal Switching Diodes
CDST-99-HF/70-HF/56-HF
Reverse Voltage: 70 Volts
Forward Current: 200 mA
RoHS Device
Halogen Free
SOT-23
Features
0.119(3.00)
0.110(2.80)
-Design for mounting on small surface.
-High speed switching.
-High mounting capability, strong surge
withstand, high reliability.
3
0.056(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.
-Approx. weight: 0.0078 grams
0.006(0.15)
0.002(0.05)
0.041(1.05)
0.100(2.55)
0.035(0.90)
0.089(2.25)
Circuit diagram
3
3
3
0.004(0.10) max
0.020(0.50)
0.012(0.30)
1
2
1
CDST-99-HF
Marking Code: A7
2
CDST-70-HF
Marking Code: A4
1
0.008(0.20) min
2
Dimensions in inches and (millimeter)
CDST-56-HF
Marking Code: A1
Maximum Ratings (at Ta=25°C unless otherwise noted)
Parameter
Symbol
Value
Units
Reverse voltage
VR
70
V
Forward current
IF
200
mA
Peak surge forward current
IFSM
500
mA
Power dissipation
PD
225
mW
RθJA
556
°C/W
TJ
150
°C
TSTG
-55 to +150
°C
Thermal resistance, junction to ambient
Maximum junction temperature
Storage temperature
Electrical Characteristics (at Ta=25°C unless otherwise noted)
Parameter
Reverse breakdown voltage
Symbol
Conditions
VBR
IR=100μA
Forward voltage
VF
@IF=1mA
@IF=10mA
@IF=50mA
@IF=150mA
Reverse current
IR
@VR=70V
Reverse recovery time
trr
IF=IR=10mA, Irr=0.1×IR,
RL=100Ω
Diode capacitance
CT
VR=0V, f=1.0MHz
Min.
Max.
70
Units
V
0.715
0.855
1.0
1.25
V
2.5
μA
6
nS
1.5
pF
REV:A
Page 1
QW-J0002
Comchip Technology CO., LTD.
Small Signal Switching Diodes
RATING AND CHARACTERISTIC CURVES (CDST-99-HF/70-HF/56-HF)
Fig.1 - Forward Characteristics
Fig.2 - Reverse Characteristics
10μ
TA=125°C
1μ
100
Reverse Current, (A)
Forward Current, (mA)
1000
TA=150°C
TA=-40°C
TA=75°C
10
TA=0°C
TA=25°C
1
100n
TA=75°C
10n
TA=25°C
TA=0°C
1n
0.1
0.1n
0
0.5
1.0
0
1.5
20
40
60
80
Forward Voltage, (V)
Reverse Voltage, (V)
Fig.3 - Capacitance Between Terminals
Characteristics
Fig.4 - Power Derating Curve
2
100
400
TJ=25°C
f=1MHz
Mounted on glass
epoxy PCBs
Power Dissipation, (mW)
Capacitance Between Teminals, (pF)
TA=-40°C
1
300
200
100
0
0
0
10
20
30
40
50
0
25
50
75
100
125
150
175
Ambient Temperature, (°C)
Reverse Voltage, (V)
REV:A
Page 2
QW-J0002
Comchip Technology CO., LTD.
Small Signal Switching Diodes
Reel Taping Specification
d
P0
T
P1
E
Index hole
F
W
B
C
P
A
12
o
0
D2
D1 D
W1
Trailer
Device
.......
.......
End
.......
.......
Leader
.......
.......
10 pitches (min)
.......
.......
Start
10 pitches (min)
Direction of Feed
SOT-23
SOT-23
SYMBOL
A
B
C
d
D
D1
D2
(mm)
3.10 ± 0.10
2.85 ± 0.10
1.40 ± 0.10
1.55 ± 0.10
178 ± 1.00
54.00 (min)
13.00 ± 0.20
(inch)
0.122 ± 0.004
0.112 ± 0.004
0.055 ± 0.004
0.061 ± 0.004
7.008 ± 0.039
1.969 (min)
0.512 ± 0.008
SYMBOL
E
F
P
P0
P1
W
W1
(mm)
1.75 ± 0.10
3.50 ± 0.05
4.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.05
8.00 ± 0.30
14.40 (max)
(inch)
0.069 ± 0.004
0.138 ± 0.002
0.157 ± 0.004
0.157 ± 0.004
0.079 ± 0.002
0.315 ± 0.012
0.567 (max)
REV:A
Page 3
QW-J0002
Comchip Technology CO., LTD.
Small Signal Switching Diodes
Marking Code
3
Part Number
Marking Code
CDST-99-HF
A7
CDST-70-HF
A4
CDST-56-HF
A1
XX
1
2
XX = Product type marking code
Suggested PAD Layout
SOT-23
SIZE
(mm)
(inch)
A
0.80
0.031
B
1.90
0.075
C
2.02
0.080
D
2.82
0.111
A
C
D
B
Standard Packaging
REEL PACK
Case Type
SOT-23
REEL
Reel Size
( pcs )
(inch)
3,000
7
REV:A
Page 4
QW-J0002
Comchip Technology CO., LTD.
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