CDBAS540-HF

Comchip
SMD Schottky Barrier Rectifiers
SMD Diode Specialist
CDBAS540-HF
Reverse Voltage: 40 Volts
Forward Current: 5.0 Amp
RoHS Device
Halogen Free
SMA-S
Features
0.193(4.90)
0.173(4.40)
- High surge and current capability.
0.045(1.15)
Typ.
- For use in low voltage, high frequency invertors
free wheeling and polarity protection.
0.057(1.45)
0.051(1.30)
- Built-in strain relief.
0.110(2.80)
0.096(2.45)
- Silicon epitaxial planar chips.
- Metal silicon junction with guard ring.
0.154(3.90)
0.132(3.35)
Mechanical data
0.048(1.20)
0.031(0.80)
- Epoxy: UL94V-0 rate flame retardant.
0.043(1.10)
Typ.
- Case: Molded plastic, SMA-S.
- Terminals: Solderable per MIL-STD-750
method 2026.
- Polarity: Color band denotes cathode end.
Dimensions in inches and (millimeter)
Circuit diagram
- Mounting position: Any
- Weight: 0.045 grams(approx.).
Maximum Ratings and Electrical Characteristics (at T =25°C unless otherwise noted)
A
Symbol
CDBAS540-HF
Unit
Maximum recurrent peak reverse voltage
VRRM
40
V
Maximum DC blocking voltage
VDC
40
V
Maximum RMS voltage
VRMS
28
V
IAV
5.0
A
IFSM
100
A
VF
0.55
V
Parameter
Maximum average forward rectified current
0.2 x0.2”(5.0x5.0mm) copper pad area, see Fig.1
Peak forward surge current
8.3ms single half sine-wave superimposed
on rated load (JEDEC method)
Maximum forward voltage at 3.0A (note 1)
Maximum DC reverse current
at rated DC blocking voltage
0.5
TJ=25°C
IR
Typical junction capacitance (note 2)
mA
20
TJ=100°C
CJ
300
PF
RθJA
50.0
°C/W
RθJL
15.0
°C/W
Junction temperature range
TJ
-55 to +125
°C
Storage temperature range
TSTG
-55 to +150
°C
Typical thermal resistance (note 3)
Notes: 1. Pulse test: 300µS pulse width, 1% duty cycle.
2. Measured at 1.0MHz and applied reverse voltage of 4.0 volts
3. Thermal resistance from junction to ambient and from junction to lead P.C.B. mounted on 0.2x0.2”(5.0x5.0mm) copper pad areas.
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
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QW-JB069
Comchip Technology CO., LTD.
Comchip
SMD Schottky Barrier Rectifiers
SMD Diode Specialist
TYPICAL RATING AND CHARACTERISTIC CURVES (CDBAS540-HF)
Fig. 2 - Maximum Non-Repetitive Peak
Forward Surge Current
Fig. 1 - Forward Current Derating Curve
100
Peak Forward Surge Current, (A)
6.0
Average Forward Current, (A)
5.0
4.0
3.0
2.0
single phase half wave 60HZ
resistive or inductive load
P.C.B. mounted on 0.2x0.2”
(5.0x5.0mm) copper pad areas
1.0
0
TJ = 25°C
8.3ms single half sine-wave
(JEDEC Method)
1
0
25
75
50
100
125
150
1
10
100
Lead Temperature, (°C)
Number Of Cycles At 60Hz
Fig. 3 - Typical Instantaneous Forward
Characteristics
Fig. 4 - Typical Reverse Characteristics
10,000
10,000
TJ=125°C
TJ=125°C
1000
TJ=100°C
1000
Reverse Current, (μA)
Instantaneous Forward Current, (mA)
10
TJ=100°C
100
10
TJ=75°C
TJ=50°C
1.0
TJ=75°C
100
TJ=50°C
TJ=25°C
10
1.0
TJ=25°C
0.1
0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
Instantaneous Forward Voltage, (V)
5
10
15
20
25
30
35
40
Reverse Voltage, (V)
Fig. 5 - Typical Junction Capacitance
1000
900
Capacitance, (pF)
800
700
600
500
400
300
200
100
0
0
10
20
30
40
Reverse Voltage, (V)
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 2
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Comchip Technology CO., LTD.
Comchip
SMD Schottky Barrier Rectifiers
SMD Diode Specialist
Reel Taping Specification
d
P0
P1
T
E
Index hole
F
W
B
P
C
A
12
o
0
D2
D1 D
W1
Trailer
Device
.......
.......
End
.......
.......
Leader
.......
.......
.......
.......
160mm (min)
Start
400mm (min)
Direction of Feed
SMA-S
SMA-S
SYMBOL
A
B
C
d
D
D1
D2
(mm)
2.85 ± 0.10
5.10 ± 0.10
1.25 ± 0.05
1.55 ± 0.05
178.00 ± 2.00
75.00 ± 2.00
13.00 ± 0.50
(inch)
0.112 ± 0.004
0.201 ± 0.004
0.049 ± 0.002
0.061 ± 0.002
7.008 ± 0.079
2.953 ± 0.079
0.512 ± 0.020
SYMBOL
E
F
P
P0
P1
T
W
W1
(mm)
1.75 ± 0.10
5.50 ± 0.05
4.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.05
0.25 ± 0.05
12.00 ± 0.10
16.80 ± 4.00
(inch)
0.069 ± 0.004
0.217 ± 0.002
0.157 ± 0.004
0.157 ± 0.004
0.079 ± 0.002
0.010 ± 0.002
0.472 ± 0.004
0.661 ± 0.157
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 3
QW-JB069
Comchip Technology CO., LTD.
Comchip
SMD Schottky Barrier Rectifiers
SMD Diode Specialist
Marking Code
Part Number
Marking Code
CDBAS540-HF
54S
54S
= Cathod band
xxx = Product type marking code
Suggested PAD Layout
DO-214AC/SMA-S
D
SIZE
(mm)
(inch)
A
1.90
0.075
B
1.60
0.063
C
2.70
0.106
D
5.90
0.232
C
A
B
Standard Packaging
REEL PACK
Case Type
DO-214AC
(SMA-S)
REEL
Reel Size
( pcs )
(inch)
3,000
7
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 4
QW-JB069
Comchip Technology CO., LTD.
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