CDST-21S-HF

Small Signal Switching Diodes
CDST-21/A/C/S-HF
Reverse Voltage: 250 Volts
Forward Current: 200 mA
RoHS Device
Halogen Free
SOT-23
Features
-Fast Switching Speed.
0.118(3.00)
0.110(2.80)
-Surface Mount Package Ideally Suited for
Automatic Insertion.
3
0.055(1.40)
0.047(1.20)
-For General Purpose Switching Applications.
1
-High Conductance.
2
0.079(2.00)
0.071(1.80)
Mechanical data
0.006(0.15)
0.003(0.08)
-Case: SOT-23, molded plastic.
0.041(1.05)
0.035(0.90)
0.100(2.55)
0.089(2.25)
-Terminals: solderable per MIL-STD-750,
method 2026.
0.004(0.10) max
-Approx. weight: 0.008 grams
0.020(0.50)
0.012(0.30)
Circuit diagram
3
1
Dimensions in inches and (millimeter)
3
2
CDST-21-HF
1
0.020(0.50)
0.012(0.30)
3
2
CDST-21A-HF
1
3
2
1
CDST-21C-HF
2
CDST-21S-HF
Maximum Ratings and Electrical Characteristics
(at Ta=25°C unless otherwise noted)
Symbol
Value
Units
Repetitive peak reverse voltage
Working peak reverse voltage
DC blocking voltage
VRRM
VRWM
VR
250
V
Average rectified output current
IO
200
mA
Parameter
Non-repetitive peak forward surge current
@ t = 1.0μs
@ t = 1.0s
IFSM
2.5
0.5
A
Repetitive peak forward surge current
IFRM
625
mA
Power dissipation
PD
225
mW
RθJA
55
°C/W
Junction temperature
TJ
150
°C
Storage temperature
TSTG
-55 to +150
°C
Thermal resistance junction to ambient
Company reserves the right to improve product design , functions and reliability without notice.
REV:A
Page 1
QW-J0006
Comchip Technology CO., LTD.
Small Signal Switching Diodes
Electrical Characteristics (at Ta=25°C unless otherwise noted)
Parameter
Conditions
Symbol
Min.
250
Reverse breakdown voltage
IR = 100μA
V(BR)
Reverse voltage leakage current
VR = 200V
IR
IF = 100mA
Forward voltage
V
μA
0.1
1000
VF
IF = 200mA
Unit
Max.
mV
1250
Diode Capacitance
VR=0V, f=1MHz
CD
5
pF
Reverse recovery time
IF=IR=30mA, Irr=0.1xIR, RL=100Ω
Trr
50
nS
RATING AND CHARACTERISTIC CURVES (CDST-21/A/C/S-HF)
Fig.1 - Forward characteristics
Fig.2 - Reverse characteristics
1000
100
T A =100°C
10
Reverse current, (A)
Forward current, (mA)
1000
T A =25°C
1
T A =100°C
100
10
T A =25°C
0.1
0.01
1
0
0.4
0.8
1.6
1.2
2.0
0
80
120
160
Forward voltage, (V)
Reverse voltage, (V)
Fig.3 - Capacitance between
Fig.4 - Power derating curve
1.6
200
300
f=1MHz
TA=25°C
1.4
Power daissipation, (mW)
Capacitance between terminals, (pF)
40
1.2
1.0
0.8
250
200
150
100
50
0
0.6
0
4
8
12
16
20
Reverse voltage, (V)
0
25
50
75
100
125
150
Ambient temperature, (°C)
Company reserves the right to improve product design , functions and reliability without notice.
REV:A
Page 2
QW-J0006
Comchip Technology CO., LTD.
Small Signal Switching Diodes
Reel Taping Specification
P1
d
T
F
E
P0
B
W
C
A
P
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
Φ1.50 ± 0.10
178 ± 2.00
54.40 ± 1.00
13.00 ± 1.00
(inch)
0.124 ± 0.004
0.109 ± 0.004
0.048 ± 0.004 Φ0.059 ± 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:A
Page 3
QW-J0006
Comchip Technology CO., LTD.
Small Signal Switching Diodes
Marking Code
3
Marking Code
Part Number
CDST-21-HF
.JS
CDST-21A-HF
.JS2
CDST-21C-HF
.JS3
CDST-21S-HF
.JS4
XXX
1
2
xx/xxx = 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
Company reserves the right to improve product design , functions and reliability without notice.
REV:A
Page 4
QW-J0006
Comchip Technology CO., LTD.
Similar pages