CD4148WT
Crownpo Technology
Small-Signal Chip Diode
0603
.071 (1.65)
.059 (1.45)
Features
• This diode is also available in other case styles
including the 1206 case with the type designation
CD4148W, the 0805 case with the type
designation CD4148WS
• Silicon Epitaxial Planar Diode
• Fast switching diode.
.039 (0.9)
.027 (0.7)
Mechanical Data
Case:
0603
Weight:
approx. 4 mg
Marking:
Cathode arrow
.018 (.45)
.010 (.25)
.034 (.75)
.026 (.55)
Dimensions in inches and (millimeters)
Mounting Pad Layout
.020(.508)
.034(0.86) Typ.
Typ.
.039 (0.99)
Typ.
Absolute Maximum Ratings & Thermal Characteristics
Parameter
Reverse voltage
Peak reverse voltage
Average rectified current half wave rectification with resistive
load f
M
50 Hz
Surge current
Power dissipation
Thermal resistance junction to ambient air
Junction temperature
Storage temperature
1) Valid provided that electrodes are kept at ambient temperature.
T
amb
= 25
-
C, unless otherwise specified
Symbol
V
R
V
RM
I
F(AV)
I
FSM
P
tot
R
θ
JA
T
j
T
S
Value
75
100
150
1)
350
200
1)
Unit
V
V
mA
mA
mW
t < 1 s and T
j
= 25
-
C
650
1)
150
- 65 to + 175
-
C/ W
-
C
-
C
01-Dec-03
Document No. 32002
www.crownpo.com
CD4148WT
Crownpo Technology
Electrical Characteristics
Parameter
Forward voltage
T
amb
= 25
-
C, unless otherwise specified
Symbol
I
F
= 10 mA
V
R
= 20 V
V
R
= 75 V
V
R
= 20 V, T
J
= 150
-
C
V
F
= V
R
= 0 V
V
F
I
R
C
tot
V
fr
Min
Max
1.0
25
5.0
50
4
2.5
Unit
V
nA
Leakage current
Capacitance
e
A
e
A
pF
ns
Voltage rise when switching ON tested with 50 mA pulses,
t
p
= 0.1
e
s, rise time < 30 ns,
f
p
= (5 to 100) kHz
Reverse recovery time
Rectification efficiency
I
F
= 10 mA to I
R
= 1 mA,
V
R
= 6 V, R
L
= 100
q
f = 100 MHz, V
RF
= 2 V
t
rr
0.45
4
ns
Rectification Efficiency Measurement Circuit
Typical Characteristics
(T
amb
= 25
°C
unless otherwise specified)
Figure 1. Forward Characteristics
Figure 2. Dynamic Forward Resistance
vs. Forward Current
01-Dec-03
Document No. 32002
www.crownpo.com
CD4148WT
Crownpo Technology
Figure 3. Admissible Power Dissipation
vs. Ambient Temperature
Figure 4. Relative Capacitance vs.
Reverse Voltage
Figure 5. Leakage Current vs.
Junction Temperature
Figure 6. Admissible Repetitive Peak Forward Current vs. Pulse Duration
01-Dec-03
Document No. 32002
www.crownpo.com
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