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CDST-21S-HF Datasheet, PDF (1/4 Pages) Comchip Technology – Small Signal Switching Diodes
Small Signal Switching Diodes
CDST-21/A/C/S-HF
Reverse Voltage: 250 Volts
Forward Current: 200 mA
RoHS Device
Halogen Free
Features
-Fast Switching Speed.
-Surface Mount Package Ideally Suited for
Automatic Insertion.
-For General Purpose Switching Applications.
-High Conductance.
Mechanical data
-Case: SOT-23, molded plastic.
-Terminals: solderable per MIL-STD-750,
method 2026.
-Approx. weight: 0.008 grams
Circuit diagram
3
3
3
3
1
2
CDST-21-HF
1
2
CDST-21A-HF
1
2
CDST-21C-HF
1
2
CDST-21S-HF
SOT-23
0.055(1.40)
0.047(1.20)
0.041(1.05)
0.035(0.90)
0.118(3.00)
0.110(2.80)
3
1
2
0.079(2.00)
0.071(1.80)
0.006(0.15)
0.003(0.08)
0.100(2.55)
0.089(2.25)
0.020(0.50)
0.012(0.30)
0.004(0.10) max
0.020(0.50)
0.012(0.30)
Dimensions in inches and (millimeter)
Maximum Ratings and Electrical Characteristics
(at Ta=25°C unless otherwise noted)
Parameter
Symbol
Repetitive peak reverse voltage
Working peak reverse voltage
DC blocking voltage
Average rectified output current
VRRM
VRWM
VR
IO
@ t = 1.0μs
Non-repetitive peak forward surge current
IFSM
@ t = 1.0s
Repetitive peak forward surge current
IFRM
Power dissipation
PD
Thermal resistance junction to ambient
RθJA
Junction temperature
TJ
Storage temperature
TSTG
Value
250
200
2.5
0.5
625
225
55
150
-55 to +150
Units
V
mA
A
mA
mW
°C/W
°C
°C
Company reserves the right to improve product design , functions and reliability without notice.
QW-J0006
Comchip Technology CO., LTD.
REV:A
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