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SMD Schottky Barrier Diode
SMD Diodes Specialist
CDBK0540-HF (RoHS Device)
IO = 500 mA VR = 40 Volts
SOD-123F
0.144(3.65) 0.136(3.45)
Features
Halogen free. Low forward voltage. Designed for mounting on small surface. Extremely thin / leadless package. Majority carrier conduction.
0.069(1.75) 0.061(1.55)
Mechanical data
Case: SOD-123F standard package, molded plastic. Terminals: Gold plated, solderable per MIL-STD-750,method 2026. Marking code: cathode band & BN Mounting position: Any Weight: 0.011 gram(approx.).
0.057(1.45) Typ. 0.024(0.60) 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)
O
Parameter
Peak reverse voltage Reverse voltage Average forward rectified current Forward current,surge peak Storage temperature Junction temperature
Conditions
Symbol Min Typ Max Unit
VRM VR IO 40 40 500 5.5 -40 +125 +125 V V mA A
O
8.3 ms single half sine-wave superimposed on rate load (JEDEC method)
IFSM TSTG Tj
C C
O
Electrical Characteristics (at TA=25 C unless otherwise noted)
O
Parameter
Forward voltage IF = 0.5 A IF = 1 A IF = 0.5 A IF = 1 A VR = 20V VR = 40V VR = 20V VR = 40V
Conditions
@Ta = 25 C @Ta = 25 C @Ta = 100 C @Ta = 100 C
O O O O
Symbol Min Typ Max Unit
VF 0.51 0.64 0.46 0.62 0.01 0.02 2 5 170 22 V
Reverse current
@Ta = 25 OC @Ta = 25 C O @Ta = 100 OC @Ta = 100 C
O
IR
mA
Capacitance between terminals Reverse recovery time
f = 1 MHz, and 0 VDC reverse voltage IF = IR = 10mA, Irr x IR, RL = 100ohm
CT Trr
pF ns
REV:A
QW-G1092
Page 1
Comchip Technology CO., LTD.
SMD Schottky Barrier Diode
SMD Diodes Specialist
RATING AND CHARACTERISTIC CURVES (CDBK0540-HF)
Fig. 1 - Forward characteristics
1000 10m
125 C
Fig. 2 - Reverse characteristics
1m
Forward current (mA )
100
Reverse current ( A )
100u 10u
75 C
10
25 C
1
1u 100n 10n
-25 C
0.1
0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
1n 0 10 20 30 40
Forward voltage (V)
Reverse voltage (V)
Fig. 3 - Capacitance between terminals characteristics
Capacitance between terminals (PF)
120 100
Fig.4 - Current derating curve
120
Average forward current(%)
f=1MHz O Ta=25 C
100
80
80
60
60
40
40
20
20
0 0 5 10 15 20
0 0 25 50 75 100 125 150
O
Reverse voltage (V)
Ambient temperature ( C)
REV:A
QW-G1092
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
1.90 0.10
0.075 0.004
B
3.80 0.10
0.150 0.004
C
1.05 0.10
0.041 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
K SOD-123F
(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
0.22 0.05
0.009 0.002
W
8.00 0.20
0.315 0.008
W1
13.5 MAX.
0.531 MAX.
K SOD-123F
(mm) (inch)
REV:A
QW-G1092
Page 3
Comchip Technology CO., LTD.
SMD Schottky Barrier Diode
SMD Diodes Specialist
Marking Code
Park Number CDBK0540-HF Marking Code
BN
BN
Suggested PAD Layout
K/SOD-123F SIZE (mm) A B C D E 3.45 1.30 1.60 4.75 2.15 (inch) 0.136 0.051 0.063
C D A E
0.187
B
0.085
Standard Package
Qty per Reel Case Type (Pcs) K/SOD-123F 4000 Reel Size (inch) 7
REV:A
QW-G1092
Page 4
Comchip Technology CO., LTD.

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