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SMD Schottky Barrier Diode
SMD Diodes Specialist
CDBK0540 (RoHs Device)
IO = 500 mA VR = 40 Volts
SOD-123F
0.144(3.65) 0.136(3.45)
Features
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
0.035(0.90)
Case: SOD-123F standard package, molded plastic.
0.024(0.60) Typ.
0.027(0.70)
Terminals: Gold plated, solderable per MIL-STD-750,method 2026. Polarity: Indicated by cathode band. Mounting position: Any Weight: 0.011 gram(approx.).
0.057(1.45) Typ. 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-A1096
Page 1
Comchip Technology CO., LTD.
SMD Schottky Barrier Diode
SMD Diodes Specialist
RATING AND CHARACTERISTIC CURVES (CDBK0540)
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-A1096
Page 2
Comchip Technology CO., LTD.

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