Small Signal Switching Diodes
CDST-99-G/70-G/56-G
Reverse Voltage: 70 Volts
Forward Current: 200 mA
RoHS Device
SOT-23
Features
-Design for mounting on small surface.
-High speed switching.
0.119(3.00)
0.110(2.80)
3
-High mounting capability, strong surge
withstand, high reliability.
0.056(1.40)
0.047(1.20)
Mechanical data
1
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)
0.002(0.05)
-Approx. weight: 0.0078 grams
0.041(1.05)
0.035(0.90)
0.100(2.55)
0.089(2.25)
Circuit diagram
3
3
3
0.004(0.10) max
0.008(0.20) min
0.020(0.50)
0.012(0.30)
1
2
1
2
1
2
CDST-99-G
Marking Code: A7
CDST-70-G
Marking Code: A4
CDST-56-G
Marking Code: A1
Dimensions in inches and (millimeter)
Maximum Ratings (at Ta=25°C unless otherwise noted)
Parameter
Symbol
Value
Units
Reverse voltage
Forward current
VR
IF
70
200
V
mA
mA
mW
°C/W
°C
Peak surge forward current
Power dissipation
IFSM
PD
500
225
Thermal resistance, junction to ambient
Maximum junction temperature
Storage temperature
RθJA
TJ
556
150
TSTG
-55 to +150
°C
Electrical Characteristics(at Ta=25°C unless otherwise noted)
Parameter
Symbol
Conditions
Min.
Max.
Units
Reverse breakdown voltage
VBR
IR=100μA
70
V
0.715
0.855
1.0
@IF=1mA
@IF=10mA
@IF=50mA
@IF=150mA
Forward voltage
VF
V
1.25
μA
2.5
6
Reverse current
IR
trr
@VR=70V
IF=IR=10mA, Irr=0.1×IR,
RL=100Ω
Reverse recovery time
nS
pF
Diode capacitance
CT
VR=0V, f=1.0MHz
1.5
REV:E
Page 1
QW-B0002
Comchip Technology CO., LTD.