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SMD Schottky Barrier Diode
SMD Diodes Specialist
CDBF42/43-HF
Io = 200 mA VR = 30 Volts Features
Halogen free. Low forward voltage.
(RoHS Device)
1005(2512)
0.102(2.60) 0.095(2.40)
Designed for mounting on small surface. Extremely thin / leadless package. Majority carrier conduction.
0.051(1.30) 0.043(1.10)
Mechanical data
Case: 0603(1608) standard package, molded plastic. Terminals: Gold plated, solderable per MIL-STD-750,method 2026. Marking code: CDBF42-HF : BD CDBF43-HF : BE Mounting position: Any Weight: 0.006 gram(approx.).
O
0.040(1.00) Typ. 0.020(0.50) Typ. 0.035(0.90) 0.027(0.70)
0.012 (0.30) Typ.
Dimensions in inches and (millimeter)
Maximum Rating (at TA=25 C unless otherwise noted)
Parameter
Peak reverse voltage Reverse voltage RMS reverse voltage Average forward rectified current Repetitive peak forward current Forward current,surge peak Power Dissipation Thermal resistance junction to ambient air Storage temperature Junction temperature
O
Conditions
Symbol Min Typ Max Unit
VRM VR VR(RMS) IO IFRM 30 30 21 200 0.5 4 200 500 -55 +125 +125 V V V mA A A mW
O
8.3 ms single half sine-wave superimposed on rate load(JEDEC method)
IFSM PD R
JA
C/W
O
TSTG Tj
C C
O
Electrical Characteristics (at TA=25 C unless otherwise noted)
Parameter
Forward voltage CDBF42/43-HF CDBF42-HF CDBF42-HF CDBF43-HF CDBF43-HF Reverse current Capacitance between terminals Reverse recovery time IF = 200mA IF = 10mA IF = 50mA IF = 2mA IF = 15mA VR = 25V f = 1 MHz, and 1 VDC reverse voltage IF=IR=10mA,Irr=0.1xIR,RL=100 ohm
Conditions
Symbol Min Typ Max Unit
VF 1 0.4 0.65 0.33 0.45 0.5 10 5 V
IR CT Trr
uA pF nS
REV:A
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Page 1
Comchip Technology CO., LTD.
SMD Schottky Barrier Diode
SMD Diodes Specialist
RATING AND CHARACTERISTIC CURVES (CDBF42/43-HF)
Fig. 1 - Forward characteristics
500 1m
Fig. 2 - Reverse characteristics
Reverse current ( A )
Forward current (mA )
100
100u
125 C
O
10u
75 C
O
10
1u
1
C
75 C
C
O
O
O
C
O
100n
25 C
O
125
0.1 0 0.2 0.4 0.6 0.8
-25
25
10n 0 10 20 30 40
Forward voltage (V)
Reverse voltage (V)
Fig.3 - Capacitance between terminals characteristics
Capacitance between terminals (PF)
16
120
Fig.4 - Current derating curve
Average forward current(%)
14 12 10 8 6 4 2 0 0 5 10 15 20
f=1MHz O TA=25 C
Mounting on glass epoxy PCBs
100
80
60
40
20
0
25
30
35
0
25
50
75
100
O
125
150
Reverse voltage (V)
Ambient temperature ( C)
REV:A
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Page 2
Comchip Technology CO., LTD.
SMD Schottky Barrier Diode
SMD Diodes Specialist
Reel Taping Specification
P0 P1 d Index hole E T
F B
Polarity
W C
P
A
12 0
o
D2
D1 D
W1
Trailer ....... .......
10 pitches (min)
Device ....... ....... ....... .......
Leader ....... .......
10 pitches (min)
End
Start
Direction of Feed
SYMBOL
A
1.55 0.10
0.061 0.004
B
2.65 0.10
0.104 0.004
C
1.05 0.10
0.041 0.004
d
1.55 0.05
0.061 0.002
D
178 1
7.008 0.04
D1
60.0 MIN.
2.362 MIN.
D2
13.0 0.20
0.512 0.008
F/1005
(mm) (inch)
SYMBOL
E
1.75 0.10
0.069 0.004
F
3.50 0.05
0.138 0.002
P
4.00 0.10
0.157 0.004
P0
4.00 0.10
0.157 0.004
P1
2.00 0.05
0.079 0.004
T
0.23 0.05
0.009 0.002
W
8.00 0.20
0.315 0.008
W1
13.5 MAX.
0.531 MAX.
F/1005
(mm) (inch)
REV:A
QW-G1029
Page 3
Comchip Technology CO., LTD.
SMD Schottky Barrier Diode
SMD Diodes Specialist
Marking Code
Park Number CDBF42-HF CDBF43-HF Marking Code
BD BE
XX
xx = Product type marking code
Suggested PAD Layout
F/1005 SIZE (mm) A B C D E 2.10 1.20 1.20 3.30 0.90 (inch) 0.083 0.047 0.047
C D A E
0.130
B
0.035
Standard Package
Qty per Reel Case Type (Pcs) F/1005 4000 Reel Size (inch) 7
REV:A
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Page 4
Comchip Technology CO., LTD.

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