Voltage: 75 Volts
Power: 350 mWatts
CDST4148
, CDST4448
Feature
Fast switching speed
Surface mount package Ideally Suited for
Electrically Identical to Standard JEDEC
High Conductance
Surface Mount Switching Diode
www.comchip.com.tw
COMCHIP
COMCHIP
SOT-23
Dimensions in inches (millimeters)
Mechanical Data
Case: SOT-23 Plastic Package
Terminals: Solderable per MIL-STD-202,
Method 208
Approx. Weight: 0.008 gram
MDS0210008
B
Page 1
.037(0.95) .037(0.95)
.00
6
(
0.1
5
)
max.
.1
19
(3.
0
)
.0
20
(0.
5
)
.0
20
(0.
5
)
Top View
.10
3
(2.6)
.00
6
(
0
.15)
.0
4
4
(1
.
1
0
)
.110 (2.8)
.0
47
(1
.
2
0
)
.00
2
(0
.
0
5)
.0
86
(2.
2
)
.0
3
5
(0
.
9
0
)
.0
20
(0.
5
)
.056 (
1
.4
0)
3
1
2
Automatic insertion
SINGLE
CDST4148
, CDST4448
Parameter
Symbol
CDST4148
CDST4448
Units
Reverse Voltage
V
R
75
75
V
Peak Reverse Voltage
V
RM
100
100
V
Rectified Current (Average), Half Wave Rectification with Resistive Load
and f >=50 Hz
I
O
150
150
mA
Peak Forward Surge Current, 8.3ms single half sine-wave superimposed
on rated load (JEDEC method)
I
FSM
2.0
4.0
A
Power Dissipation Derate Above 25C
P
TOT
350
mW
Maximum Forward Voltage @ IF=5mA
-
0.72
@ IF=10mA
1.0
1.0
Maximum DC Reverse Current at Rated DC Blocking Voltage TJ= 25C
I
R
2.5
2.5
uA
Typical Junction Capacitance( Notes1)
C
J
4.0
4.0
pF
Maximum Reverse Recovery (Notes2)
T
RR
4.0
4.0
ns
Maximum Thermal Resistance
R
JA
C/W
Storage Temperature Range
T
J
C
(2) From I
F
= 10mA to I
R
= 1mA, V
R
= 6Volts, R
L
= 100
(1) C
J
at V
R
= 0, f = 1MHZ
Maximum Ratings and Electrical Characterics
V
F
V
357
-55 to +125
RATING AND CHARACTERISTIC CURVES (CDST4148)
Surface Mount Switching Diode
www.comchip.com.tw
COMCHIP
RECTIFICATION EFFCIENCY MEASUREMENT CIRCUIT
TYPICAL CAPATICANCE
0.2
0.4
0.6
0.8
1.0
1.2
10
1.0
0.1
10
0
1.0
0.1
0.01
0.001
10
20
30
40
50
6.0
0
4.5
3.5
1.5
0
2
4
6
8
FOR
W
ARD
CURRENT
,m
A
FORWARD VOLTAGE, Volts
REVERSE
CURRENT
,A
m
REVERSE VOLTAGE, Volts
T =150 C
A
O
T =125 C
A
O
T =85 C
A
O
T =55 C
A
O
T =25 C
A
O
DIODE
CAP
ACIT
ANCE,
pF
REVERSE VOLTAGE, Volts
5k
W
Vo
2nF
V
=2V
RF
60
W
0.01
MDS0210008
B
Page 2
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