Document
SMD Schottky Barrier Diode
SMD Diodes Specialist
CDBQR42/43(RoHS Device)
Io = 200 mA V R = 30 Volts Features
Low forward voltage. Designed for mounting on small surface. Extremely thin/leadless package. Majority carrier conduction.
0.026(0.65) 0.022(0.55)
0402(1005)
0.041(1.05) 0.037(0.95)
Mechanical data
Case: 0402(1005) standard package, molded plastic. Terminals: Gold plated, solderable per MIL-STD-750,method 2026. Marking code: CDBQR42 : BD CDBQR43 : BE Mounting position: Any Weight: 0.001 gram(approx.).
Dimensions in inches and (millimeter)
0.020(0.50) Typ. 0.012(0.30) Typ. 0.022(0.55) 0.018(0.45)
Maximum Rating (at T A =25 C unless otherwise noted)
O
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
Conditions
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Symbol Min Typ Max Unit
V RM VR V R(RMS) IO I FRM 30 30 21 200 0.5 4 125 667 -55 +125 +125 V V V mA A A mW
O
8.3 ms single half sine-wave superimposed on rate load(JEDEC method)
I FSM PD R
JA
C/W
O
T STG Tj
O
C C
O
Electrical Characteristics (at T A =25 C unless otherwise noted)
Parameter
Forward voltage CDBQR42/43 CDBQR42 CDBQR42 CDBQR43 CDBQR43 I F = 200mA I F = 10mA I F = 50mA I F = 2mA I F = 15mA V R = 25V f = 1 MHz, and 1 VDC reverse voltage I F =I R =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
Reverse current Capacitance between terminals Reverse recovery time
IR CT T rr
uA pF nS
REV:B
QW-A1125
Page 1
Comchip Technology CO., LTD.
datasheet pdf - http://www.DataSheet4U.net/
SMD Schottky Barrier Diode
SMD Diodes Specialist
RATING AND CHARACTERISTIC CURVES (CDBQR42/43)
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 ( P F)
16
120
Fig.4 - Current derating curve
Average forward current(%)
14 12
f=1MHz O T A =25 C
Mounting on glass epoxy PCBs
100
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80
10 8 6 4 2 0 0 5 10 15 20 25 30 35
60
40
20
0
0 25 50 75 100
O
125
150
Reverse voltage (V)
Ambient temperature ( C)
REV:B
QW-A1125
Page 2
Comchip Technology CO., LTD.
datasheet pdf - http://www.DataSheet4U.net/
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
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W1
Trailer ....... .......
10 pitches (min)
Device ....... ....... ....... .......
Leader ....... .......
10 pitches (min)
End
Start
Direction of Feed
SYMBOL
A
0.75 ± 0.10
0.026 ± 0.004
B
1.15 ± 0.10
0.045 ± 0.004
C
0.60 ± 0.10
0.024 ± 0.004
d
1.55 ± 0.10
0.061 ± 0.004
D
178 ± 1
7.008 ± 0.04
D1
60.0 MIN.
2.362 MIN.
D2
13.0 ± 0.20
0.512 ± 0.008
QR/0402
(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 ± 0.10
0.079 ± 0.004
T
0.22 ± 0.05
0.009 ± 0.002
W
8.00 ± 0.20
0.315 ± 0.008
W1
13.5 MAX.
0.531 MAX.
QR/0402
(mm) (inch)
REV:B
QW-A1125
Page 3
Comchip Technology CO., LTD.
datasheet pdf - http://www.DataSheet4U.net/
SMD Schottky Barrier Diode
SMD Diodes Specialist
Marking Code
Part Number CDBQR42 CDBQR43 Marking Code
BD BE
XX
xx = Product type marking code
Suggested PAD Layout
QR/0402 SIZE (mm) A B C D E 0.750 0.500 0.700 1.250 0.250 (inch) 0.030 0.020
C
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D A E
0.028 0.049 0.010
B
Standard Package
Qty per Reel Case Type (Pcs) QR/0402 5000 Reel Size (inch) 7
REV:B
QW-A1125
Page 4
Comchip Technology CO., LTD.
datasheet pdf - http://www.DataSheet4U.net/
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