CDBMF340-HF

Comchip
SMD Schottky Barrier Rectifiers
SMD Diode Specialist
CDBMF340-HF
Reverse Voltage: 40 Volts
Forward Current: 3 Amp
RoHS Device
Halogen Free
SOD-123FL
0.152(3.85)
0.140(3.55)
Features
0.039(1.00)
0.031(0.80)
0.079(2.00)
0.063(1.60)
- Ideal for surface mount applications.
- Easy pick and place.
- Plastic package has Underwriters Lab. Flammability
Classification 94V-0
0.008(0.20)
0.005(0.12)
0.055(1.40)
0.039(1.00)
- Exceeds environmental standard MIL-S-19500/228.
- Low leakage current.
Mechanical data
- Case: Mini SMA/SOD-123FL, molded plastic
0.039(1.00)
0.024(0.60)
- Terminals: Solderable per MIL-STD-750 Method 2026.
0.039(1.00)
0.024(0.60)
Dimensions in inches and (millimeter)
- Polarity: Color band denotes cathode end
Circuit diagram
- Weight: 0.018 grams(approx.).
Maximum Rating (at TA=25°C unless otherwise noted)
Symbol
Value
Unit
Max. Repetitive peak reverse voltage
VRRM
40
V
Max. RMS voltage
VRMS
28
V
Max. DC blocking voltage
VDC
40
V
IFSM
50
A
IO
3
A
Junction to lead
RθJL
40
Junction to Ambient
RθJA
120
TJ
-40 to +125
°C
TSTG
-55 to +150
°C
Parameter
Max. Peak forward surge current
8.3ms single half sine-wave JEDEC method)
Average forward current
Typ. Thermal resistance (Note2)
°C/W
Operating temperature range
Storage temperature range
Electrical Characteristics (at TA=25°C unless otherwise noted)
Parameter
Conditions
Symbol
Min.
Typ.
Max.
Unit
Max. Forward voltage (Note 1)
IF = 3A
VF
540
mV
DC reverse current TJ=25°C
VR = 40V
IR
200
uA
Junction capacitance
f = 1MHz, VR = 1V
CJ
250
pF
Notes: 1. Pulse test with PW=300µsec, 1% duty cycle
2. Mounted on 50cm² FR-4 PCB board.
Company reserves the right to improve product design , functions and reliability without notice.
REV:A
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Comchip Technology CO., LTD.
SMD Schottky Barrier Rectifiers
RATING AND CHARACTERISTIC CURVES (CDBMF340-HF)
Fig.1 - Typical Forward Current
Derating Curve
Fig.2 - Typical Forward Characteristics
3.5
Instantaneous Forward Current, (mA)
10000
Forward Current, (A)
3.0
2.5
2.0
1.5
1.0
0.5
0
1000
TJ=125°C
TJ=100°C
100
TJ=75°C
TJ=50°C
10
TJ=25°C
1
0
0
25
50
75
100
0
125
0.1
Lead Temperature, ( °C)
0.5
0.6
100
TJ=25 OC
8.3ms single half sine
wave, JEDEC method
Reverse Current, (mA)
Peak Forward Surge Current, (A)
0.4
Fig.4 - Typical Reverse Characteristics
80
60
40
TJ=125°C
10
TJ=100°C
1
TJ=75°C
TJ=50°C
0.1
TJ=25°C
0.01
20
0
0.3
Forward Voltage, (V)
Fig.3 - Maximum Non-Repetitive
Forward Surge Current
100
0.2
0.001
1
10
100
0
Number of Cycles at 60Hz
10
20
30
40
50
Reverse Voltage, (V)
Fig.5 - Typical Capacitance of Diodes
450
Caoacutance of Diode, (pF)
400
350
300
250
200
150
100
50
0
0
10
20
30
40
Reverse Voltage, (V)
Company reserves the right to improve product design , functions and reliability without notice.
REV:A
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Comchip Technology CO., LTD.
SMD Schottky Barrier Rectifiers
Reel Taping Specification
d
P0
P1
Index hole
F
B
P
T
E
W
C
A
12
o
0
D2
D1 D
W1
Trailer
Device
.......
.......
End
.......
.......
Leader
.......
.......
.......
.......
160mm (min)
Start
400mm (min)
Direction of Feed
Mini-SMA/SOD-123FL
Mini-SMA/SOD-123FL
SYMBOL
A
B
C
d
D
D1
D2
(mm)
2.00 ± 0.10
4.00 ± 0.10
1.45 ± 0.10
1.55 ± 0.10
178 MAX.
62.00 MIN.
13.00 ± 0.20
(inch)
0.079 ± 0.04
0.157 ± 0.04
0.057 ± 0.04
0.061 ± 0.004
7.008 MAX.
2.441 MIN.
0.512 ± 0.008
SYMBOL
E
F
P
P0
P1
T
W
W1
(mm)
1.75 ± 0.10
3.50 ± 0.05
4.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.05
0.23 ± 0.10
8.00 ± 0.30
11.4 MIN.
(inch)
0.069 ± 0.004
0.138 ± 0.002
0.157 ± 0.004
0.157 ± 0.004
0.079 ± 0.002
0.009 ± 0.004
0.315 ± 0.012
0.449 MIN.
Company reserves the right to improve product design , functions and reliability without notice.
REV:A
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Comchip Technology CO., LTD.
SMD Schottky Barrier Rectifiers
Marking Code
Part Number
Marking Code
CDBMF340-HF
34
34
= Cathod band
xx = Product type marking code
Suggested PAD Layout
Mini-SMA/SOD-123FL
D
(mm)
(inch)
A
A
3.47
0.137
B
0.78
0.031
C
1.22
0.048
D
4.25
0.167
E
2.70
0.106
SIZE
E
C
B
Standard Packaging
REEL PACK
Case Type
Mini-SMA /
SOD-123FL
REEL
Reel Size
( pcs )
(inch)
3,000
7
Company reserves the right to improve product design , functions and reliability without notice.
REV:A
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Page 4
Comchip Technology CO., LTD.
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