CYStech Electronics Corp.
Small Signal Schottky (double) diodes
Spec. No. : C302S346.13
Revised Date : 2012.02.10
Page No. : 1/7
BAR40S3/BAR40AS3
BAR40CS3/BAR40SS3
Description
Planar silicon Schottky barrier diodes encapsulated in a SOT-323 small plastic SMD package.
Single diodes and double diodes with different pinning are available.
Features
•Very
small conduction losses
•Low
forward voltage drop
•Small
plastic SMD package
•Pb-free
package
Applications
•Ultra
high-speed switching
•Voltage
clamping
•Protection
circuits
•Blocking
diodes
Pinning
Pin
1
2
3
BAR40
A
NC
K
3
1
2
1
Outline
Description
BAR40A
BAR40C
K1
A1
K2
A2
A1,A2
K1,K2
3
2
BAR40S
A1
K2
K1,A1
SOT-323
3
1
2
N.C.
(1) BAR40
3
1
2
1
(2)BAR40A
3
2
Marking:
Type
BAR40 S3
BAR40AS3
BAR40CS3
BAR40SS3
Marking Code
B4
B7
5C
B8
(3)BAR40C
(4)BAR40S
Diode configuration and symbol
BAR40S3/BAR40AS3/BAR40CS3/BAR40SS3
CYStek Product Specification
CYStech Electronics Corp.
Absolute Maximum Ratings
Spec. No. : C302S346.13
Revised Date : 2012.02.10
Page No. : 2/7
•
Maximum Temperatures
Storage Temperature Tstg.................................................................................................... -65~+150
°C
Junction Temperature Tj .......................................................................................................-55~ +125°C
•
Maximum Power Dissipation
Total Power Dissipation (Ta=25°C) Ptot
(Note)
......................................................................... 200 mW
•
Maximum Voltages and Currents (Ta=25°C)
Repetitive Peak Reverse Voltage V
RRM
............................................................................................... 40 V
Continuous Forward Current I
F
................................................................................................... 200 mA
Repetitive Peak Forward Current(tp≤1s,duty cycle≤0.5)………………………………………… 300mA
Non-repetitive Peak Forward Current (tp<10ms, sinusoidal) I
FSM
............................................... 600 mA
Note: for double diodes, Ptot is the total power dissipation of both diodes.
Characteristics
(Ta=25°C)
Characteristic
Reverse Breakdown Voltage
Forward Voltage
(Note 1)
Symbol
V
BR
V
F
(1)
V
F
(2)
V
F
(3)
Reverse Leakage Current
(Note 2)
Diode Capacitance
Reverse Recovery Time
Notes
:
1.pulse test, tp=380μs,duty cycle<2%.
2.pulse test, tp=5ms,duty cycle<2%.
Condition
I
R
=100μA
I
F
=1mA
I
F
=40mA
I
F
=100mA
V
R
=30V, Tj=25℃
V
R
=1V, f=1MHz
I
F
=I
R
=10mA R
L
=100Ω
measured at I
R
=1mA
Min.
40
-
-
-
-
-
-
Max.
-
320
500
550
200
10
5
Unit
V
mV
mV
mV
nA
pF
ns
I
R
C
D
trr
BAR40S3/BAR40AS3/BAR40CS3/BAR40SS3
CYStek Product Specification
CYStech Electronics Corp.
Characteristic Curves
Forward Current & Forward Voltage
250
Spec. No. : C302S346.13
Revised Date : 2012.02.10
Page No. : 3/7
100
Diode Capacitance & Reverse-Biased Voltage
200
150
Diode Capacitance-Cd (pF)
0
200
400
600
800
1000
Forward Current-I
F
(mA)
10
100
50
0
1
Forward Voltage-V
F
(mV)
0.1
1
10
100
Reverse Biased Voltage-V
R
(V)
BAR40S3/BAR40AS3/BAR40CS3/BAR40SS3
CYStek Product Specification
CYStech Electronics Corp.
Reel Dimension
Spec. No. : C302S346.13
Revised Date : 2012.02.10
Page No. : 4/7
Carrier Tape Dimension
BAR40S3/BAR40AS3/BAR40CS3/BAR40SS3
CYStek Product Specification
CYStech Electronics Corp.
Recommended wave soldering condition
Product
Pb-free devices
Peak Temperature
260 +0/-5
°C
Spec. No. : C302S346.13
Revised Date : 2012.02.10
Page No. : 5/7
Soldering Time
5 +1/-1 seconds
Recommended temperature profile for IR reflow
Profile feature
Average ramp-up rate
(Tsmax to Tp)
Preheat
−Temperature
Min(T
S
min)
−Temperature
Max(T
S
max)
−Time(ts
min
to ts
max
)
Time maintained above:
−Temperature
(T
L
)
−
Time (t
L
)
Peak Temperature(T
P
)
Time within 5°C of actual peak
temperature(tp)
Ramp down rate
Time 25
°C
to peak temperature
Sn-Pb eutectic Assembly
3°C/second max.
100°C
150°C
60-120 seconds
183°C
60-150 seconds
240 +0/-5
°C
10-30 seconds
6°C/second max.
6 minutes max.
Pb-free Assembly
3°C/second max.
150°C
200°C
60-180 seconds
217°C
60-150 seconds
260 +0/-5
°C
20-40 seconds
6°C/second max.
8 minutes max.
Note : All temperatures refer to topside of the package, measured on the package body surface.
BAR40S3/BAR40AS3/BAR40CS3/BAR40SS3
CYStek Product Specification
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