SMD Diodes Specialist
COMCHIP
CDSWM4148
Features
Designed for mounting on small surface.
Extremely thin / leadless package.
High speed switching.
High mounting capability, strong surge
withstand ,high reliability.
Mechanical data
Case: SOD-123F molded plastic, fits onto
footprint of minimelf and SOD-123
on PCB.
Terminals: Gold plated, solderable per
MIL-STD-750,method 2026.
Polarity: Indicated by cathode band.
Mounting position: Any
Weight: 0.0115 gram(approx.).
Page 1
REV:A
QW-A0100
0.134(3.40)
0.142(3.60)
0.055(1.40)
0.063(1.60)
0.027(0.70)
0.035(0.90)
Dimensions in inches and (millimeter)
WM(SOD-123F)
0.018(0.45) Typ.
SMD Switching Diode
High Speed
0.006(0.15)
0.007(0.20)
O
Electrical Characteristics
(at T
A
=25 C unless otherwise noted)
O
C
O
C
O
C/W
mW
mA
A
mA
V
V
4
1
+125
+125
285
350
300
150
75
100
-55
T
STG
T
j
P
D
I
FRM
I
O
V
R
V
RRM
I
FSM
O
Maximum Rating
(at T
A
=25 C unless otherwise noted)
T
P
= 1uS
T
P
= 1mS
Storage temperature
Junction temperature
Thermal Resistance Junction
To ambient air
Power Dissipation
Repetitive peak forward current
Average forward current
Reverse voltage
Repetitive peak reverse voltage
Forward current,surge peak
Parameter
Conditions
Symbol Min Typ Max Unit
nS
P
F
nA
uA
V
4
4
25
2.5
1.0
C
T
I
R
V
F
T
RR
Capacitance between terminals
Reverse current
Forward voltage
Reverse recovery time
Parameter
Conditions
Symbol Min Typ Max Unit
f = 1 MH
Z
,and 0VDC reverse voltage
V
R
= 20 V
V
R
= 75 V
I
F
= 50 mA DC
I
F
= I
R
10 mA, R
L
=100 ohms, Irr = 1 mA
R
JA
(
RoHS Device)
Rating and Characteristic Curves (CDSWM4148)
Page 2
REV:A
SMD Diodes Specialist
COMCHIP
SMD Switching Diode
F
o
r
w
a
r
d
c
u
r
r
e
n
t
(
m
A
)
Reverse voltage (V)
R
e
v
e
r
s
e
c
u
r
r
e
n
t
(
A
)
0.2
0.4
0.8
1.4
0
1.0
0.6
100n
0.1n
1000
10
100
1u
10u
10n
1n
1.2
1
0.1
0.01
0
10
90 100
20
30
40
50
60
70
80
1.6
0
5
10
15
20
25
30
35
0
1.0
2.0
3.0
4.0
5.0
Forward voltage (V)
0
20
40
60
80
100
0
25
50
75
100
125
150
QW-A0100
f=1MHz
O
T
A
=25 C
O
Ambient temperature ( C)
A
v
e
r
a
g
e
f
o
r
w
a
r
d
c
u
r
r
e
n
t
(
%
)
Mounting on glass epoxy PCBs
C
a
p
a
c
i
t
a
n
c
e
b
e
t
w
e
e
n
t
e
r
m
i
n
a
l
s
(
P
F
)
Reverse voltage (V)
Fig.3 - Capacitance between
terminals characteristics
Fig.4 - Current derating curve
Fig. 1 - Forward characteristics
Fig. 2 - Reverse characteristics
O
-2
5
C
O
2
5
C
O
7
5C
O
1
2
5
C
O
-25 C
O
25 C
O
75 C
O
125 C
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