Preliminary
CDSUR400B-HF
SMD Switching Diode
Preliminary
Page 1
QW-G0006
REV:B
Comchip Technology CO., LTD.
RoHS Device
Halogen Free
0.071(1.80)
0.063(1.60)
0.039(1.00)
0.031(0.80)
0.033(0.85)
0.027(0.70)
Dimensions in inches and (millimeter)
0.030(0.75)
0.020(0.50)
0603/SOD-523F
0.016(0.40)
0.026(0.65)
Circuit diagram
Mechanical data
- Case: 0603/SOD-523F standard package,
molded plastic.
- Terminals: Gold plated, Solderable per
MIL-STD-750,method 2026.
- Mounting position: Any.
- Weight: 0.003 grams(approx.).
- Polarity: Indicated by cathode band.
Features
- Extremely thin/leadless package.
- High Speed.
- Designed for mounting on small surface.
- High mounting capability, strong surge
withstand, high reliability.
- Low leakage current.
uA
V
IR
VF
nS
PF
4
3
CT
Trr
mA
V
V
IO
VR
VRRM
IFSM
OC
OC
-55TSTG
Tj
mWPD
mA
Maximum Rating (at TA=25 ºC unless otherwise noted)
Parameter Conditions Symbol Min Typ
Max
Unit
Reverse current
Forward voltage
Electrical Characteristics (at TA=25 ºC unless otherwise noted)
Reverse voltage
Repetitive peak reverse voltage
Average forward current
Forward current, surge peak
Power dissipation
Storage temperature range
Operating temperature range
Capacitance between terminals
Reverse recovery time
8.3 ms single half sine-wave superimposed
on rate load (JEDEC method)
Parameter Conditions Symbol Min Typ
Max
Unit
IF = 100 mA DC
VR = 80V
f = 1MHz, and 0.5V DC reverse voltage
VR = 6V, IF = 10mA, RL = 50 ohms
-40
1000
80
90
100
150
+125
+125
0.1
1.0
Company reserves the right to improve product design , functions and reliability without notice.
SMD Switching Diode
RATING AND CHARACTERISTIC CURVES (CDSUR400B-HF )
Page 2
QW-G0006
REV:B
Comchip Technology CO., LTD.
Company reserves the right to improve product design , functions and reliability without notice.
Reverse Voltage, (V)
Capacitance Between Terminals, (pF)
0510 15 20 25 30 35
0
1
2
3
4
5
f=1MHz
Ta = 25°C
Ambient Temperature, ( °C)
Average Forward Current, ( % )
Mounting on glass epoxy PCBs
Fig.4 - Current Derating Curve
Fig.3 - Capacitance Between
Terminals Characteristics
0 25 50 75 100 125 150
0
20
40
60
80
100
Forward Current, (mA )
0.2 0.4 0.8 1.4
0 1.00.6
1000
10
100
1.2
1
0.1
0.01
1.81.6
Forward Voltage, (V)
-25 °C
75 °C
125 °C
25 °C
Fig.1 - Forward Characteristics
Reverse Voltage, (V)
Reverse Current, ( A )
100n
0.1n
1u
10u
10n
1n
0 10 90 10020 30 40 50 60 70 80
-25 C
25 C
75 C
125 C
Fig.2 - Reverse Characteristics
SMD Switching Diode
Page 3
QW-G0006
REV:B
Comchip Technology CO., LTD.
Company reserves the right to improve product design , functions and reliability without notice.
Reel Taping Specification
B C dD D2
D1
E F P P0P1T
SYMBOL
A
W W1
(mm)
(inch) 0.039 0.004± 0.073 0.004± 0.039 0.004± 0.061 0.002± 7.008 0.04± 2.362 MIN. 0.512 0.008±
SYMBOL
(mm)
(inch) 0.069 0.004± 0.138 0.002± 0.157 0.004± 0.157 0.004± 0.079 0.004± 0.009 0.002± 0.315 0.008± 0.531 MAX.
1.00 0.10± 1.85 0.10±
4.00 0.10±
1.55 0.05±
3.50 0.05±1.75 0.10±
60.0 MIN. 13.0 0.20±1.00 0.10±
4.00 0.10± 2.00 0.05± 0.23 0.05± 8.00 0.20± 13.5 MAX.
178 1±
0603
(SOD-523)
0603
(SOD-523)
Trailer Device Leader
10 pitches (min)10 pitches (min)
.......
.......
....... ..............
....... ..............
End Start
D1
D2
D
W1
T
C
Direction of Feed
o
120
Index hole
d
E
F
B W
P
P0
P1
A
SMD Switching Diode
Page 4
QW-G0006
REV:B
Comchip Technology CO., LTD.
Company reserves the right to improve product design , functions and reliability without notice.
S4
Part Number
CDSUR400B-HF
Marking Code
S4
Marking Code
Suggested PAD Layout
SIZE
(inch)
0.049
(mm)
1.25
0.60
1.00
0.024
0.039
1.85 0.073
E0.65 0.026
A
B
C
D
A
C
B
E
D
0603/SOD-523F
Standard Packaging
Case Type
Qty Per Reel
(Pcs)
4,000
0603/SOD-523F
Reel Size
(inch)
7
