CDST-4148-HF

Small Signal Switching Diodes
CDST-4148-HF
Reverse Voltage: 75 Volts
Forward Current: 150 mA
RoHS Device
Halogen Free
SOT-23
Features
0.118(3.00)
0.110(2.80)
- Design for mounting on small surface.
3
- High speed switching.
0.055(1.40)
0.047(1.20)
- High mounting capability, strong surge
withstand, high reliability.
1
2
0.079(2.00)
0.071(1.80)
Mechanical data
0.006(0.15)
0.003(0.08)
- Case: SOT-23, molded plastic.
- Terminals: solderable per MIL-STD-750,
method 2026.
- Weight: 0.0078 grams(approx.).
0.041(1.05)
0.035(0.90)
0.100(2.55)
0.089(2.25)
0.004(0.10) max
0.020(0.50)
0.012(0.30)
Circuit diagram
0.020(0.50)
0.012(0.30)
3
Dimensions in inches and (millimeter)
1
2
Maximum Rating and Electrical Characterisitcs, Single Diode
(at TA=25 ºC unless otherwise specified)
Symbol
Limit
Unit
VRRM
VRWM
VR
75
V
VR(RMS)
53
V
Forward continuous current
IFM
300
mA
Average rectified output current
IO
150
mA
IFSM
2
A
PD
350
mW
RθJA
357
°C/W
Junction temperature range
Tj
-40 ~ +150
°C
Storage temperature range
TSTG
-55 ~ +150
°C
Parameter
Peak repetitive peak reverse voltage
Working peak reverse voltage
DC blocking voltage
RMS reverse voltage
Non-Repetitive peak forward surge current @t=8.3ms
Power dissipation
Thermal resistance junction to ambient
Company reserves the right to improve product design , functions and reliability without notice.
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Comchip Technology CO., LTD.
Small Signal Switching Diodes
Electrical Characteristics (at T =25 ºC unless otherwise specified)
A
Parameter
Conditions
Symbol
Min
V(BR)
75
Typ
Max
Unit
Reverse breakdown voltage
IR = 100μA
Reverse voltage leakage current
VR = 75V
IR
2.5
μA
Reverse voltage leakage current
VR = 20V
IR
25
nA
V
715
IF = 1mA
IF = 10mA
Forward voltage
855
VF
mV
IF = 50mA
1000
IF = 150mA
1250
Diode capacitance
VR = 0, f = 1MHz
CT
2
PF
Reverse recovery time
IF = IR = 10mA, Irr = 0.1xIR, RL = 100Ω
Trr
4
nS
RATING AND TYPICAL CHARACTERISTIC CURVES (CDST-4148-HF)
Fig.2 - Reverse Characteristics
Fig.1 - Forward Characteristics
300
1000
Reverse Current, IR (nA)
°C
TA=
100
10
TA=
2 5°
C
Forward Current, IF (mA)
100
1
0.1
100
TA=25°C
10
1
0
0.4
0.8
1.2
1.6
20
0
40
80
60
Forward Voltage, VF (V)
Reverse Voltage, VR (V )
Fig.3 - Capacitance Characteristics
Fig.4 - Power Derating Curve
400
1.4
TJ=25°C
f=1.0MHz
Power Dissipation, PD (mW)
Capacitance Between Terminals, CT (pF)
TA=100°C
1.3
1.2
1.1
0
0
5
10
15
20
300
200
100
0
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:A
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Comchip Technology CO., LTD.
Small Signal Switching Diodes
Reel Taping Specification
P1
XXX
B
F
E
d
P0
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:A
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Comchip Technology CO., LTD.
Small Signal Switching Diodes
Marking Code
3
Part Number
Marking Code
CDST-4148-HF
KA2
XXX
1
2
XX = Product type marking code
Solid dot = Halogen free parts
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:A
QW-J0009
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Comchip Technology CO., LTD.
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