Symbol Typ
Parameter Conditions Min
Max
Unit
Forward voltage CDBU42/43-HF
CDBU42-HF
CDBU43-HF
CDBU42-HF
CDBU43-HF
IF = 10mA
IF = 200mA
IF = 50mA
IF = 2mA
IF = 15mA
VFV
0.4
1
0.65
0.33
0.45
Reverse current
Capacitance between terminals
Reverse recovery time
VR = 25V
f = 1 MHz, and 1 VDC reverse voltage
IF=IR=10mA,Irr=0.1xIR,RL=100 ohm
IR
CT
Trr
uA
pF
nS
5
10
0.5
CDBU42/43-HF
SMD Schottky Barrier Diode
QW-G1027
Features
-Low forward voltage.
-Designed for mounting on small surface.
-Extremely thin / leadless package.
-Majority carrier conduction.
Mechanical data
-Case: 0603 standard package,
molded plastic.
-Terminals: Gold plated, solderable per
MIL-STD-750,method 2026.
-Marking code:
CDBU42-HF : BD
CDBU43-HF : BE
-Mounting position: Any
-Weight: 0.003 gram(approx.).
/SOD-523F
O
Maximum Rating (at TA=25 C unless otherwise noted)
O
Electrical Characteristics (at TA=25 C unless otherwise noted)
Page 1
Typ
IO
IFSM
VR(RMS)
VR
VRM
IFRM
Repetitive peak forward current
Average forward rectified current
Reverse voltage
Peak reverse voltage
Forward current,surge peak
Symbol
Parameter Conditions Min
Max
Unit
RMS reverse voltage
8.3 ms single half sine-wave superimposed
on rate load(JEDEC method) A
A
mA
V
V
V
4
0.5
200
21
30
30
TSTG
Tj
Storage temperature
Junction temperature
OC
OC
+125
+125
-55
PD
Power dissipation
Thermal resistance junction
to ambient air
mW
OC/W
150
667R JA
REV:A
0.071(1.80)
0.063(1.60)
0.014(0.35) Typ.
0.039(1.00)
0.031(0.80)
0.033(0.85)
0.027(0.70)
Dimensions in inches and (millimeter)
0.012 (0.30) Typ.
0.028(0.70) Typ.
Comchip Technology CO., LTD.
0603/SOD-523F
Io = 200 mA
VR = 30 Volts
RoHS Device
Halogen Free
Capacitance between terminals (PF)
Reverse voltage (V)
Fig.3 - Capacitance between
terminals characteristics
RATING AND CHARACTERISTIC CURVES (CDBU42/43-HF)
SMD Schottky Barrier Diode
Page 2
QW-G1027
Forward current (mA )
0.2 0.40
10
100
0.6
1
0.1
0.8
Forward voltage (V)
Fig. 1 - Forward characteristics
O
-25C
O
25C
O
75 C
O
125C
Reverse current ( A )
Reverse voltage (V)
10u
10n
100u
1m
1u
100n
0 10 20 30 40
Fig. 2 - Reverse characteristics
O
25 C
O
75 C
O
125 C
0510 15 20 25 30 35
0
2
4
6
8
16
f=1MHz
O
TA=25 C
12
10
14
0
20
40
60
80
100
0 25 50 75 100 125 150
O
Ambient temperature ( C)
Average forward current(%)
Mounting on glass epoxy PCBs
Fig.4 - Current derating curve
120
500
REV:A
Comchip Technology CO., LTD.
SMD Schottky Barrier Diode
Page 3
QW-G1027
REV:A
BCdD D2
D1
E F P P0P1T
SYMBOL
A
W W1
(mm)
(inch) 0.039 0.004±0.073 0.004±0.039 0.004±0.061 0.002±7.008 0.04±2.362 MIN. 0.512 0.008±
SYMBOL
(mm)
(inch) 0.069 0.004±0.138 0.002±0.157 0.004±0.157 0.004±0.079 0.004±0.009 0.002±0.315 0.008±0.531 MAX.
1.00 0.10± 1.85 0.10±
4.00 0.10±
1.55 0.05±
3.50 0.05±1.75 0.10±
60.0 MIN. 13.0 0.20±1.00 0.10±
4.00 0.10± 2.00 0.05± 0.23 0.05± 8.00 0.20± 13.5 MAX.
178 1±
Comchip Technology CO., LTD.
Index hole
o
120
Trailer Device Leader
10 pitches (min)10 pitches (min)
.......
.......
....... ..............
....... ..............
End Start
d
E
F
B W
A
P
P0
P1
D1
D2
D
W1
T
C
Direction of Feed
Reel Taping Specification
Polarity
0603
(SOD-523F)
0603
(SOD-523F)
SMD Schottky Barrier Diode
Page 4
QW-G1027
REV:A
Suggested PAD Layout
SIZE
(inch)
0.067
(mm)
1.70
0.60
0.80
0.024
0.031
Marking Code
2.30 0.091
E1.10 0.043
Standard Package
A
B
C
D
A
C
B
E
D
Park Number
CDBU42-HF
Marking Code
BD
CDBU43-HF BE XX
Comchip Technology CO., LTD.
xx = Product type marking code
0603/SOD-523F
Case Type
Qty per Reel
(Pcs)
4000
0603/SOD-523F
Reel Size
(inch)
7
