CYStech Electronics Corp.
Spec. No. : C303S3S
Issued Date : 2003.06.10
Revised Date
Page No. : 1/4
BAV70S3 CYStek Product Specification
High – speed double diode
BAV70S3
Description
The BAV70S3 consists of two high-speed switching diodes with common cathodes, fabricated in planar
technology, and encapsulated in the small SOT-323 plastic SMD package.
Equivalent Circuit Outline
Features
Small plastic SMD package
High switching speed: max. 4ns
Continuous reverse voltage: max. 75V
Repetitive peak reverse voltage: max. 85V
Repetitive peak forward current: max. 450mA.
Applications
High-speed switching in thick and thin-film circuits.
SOT-323
BAV70S3
1
2
3
1Anode
2Anode
3Common cathode
Anode
Anode
Common cathode
CYStech Electronics Corp.
Spec. No. : C303S3S
Issued Date : 2003.06.10
Revised Date
Page No. : 2/4
BAV70S3 CYStek Product Specification
Absolute Maximum Ratings @TA=25
Parameters Symbol Min Max Unit
Repetitive peak reverse voltage VRRM - 85 V
Continuous reverse voltage VR - 75 V
Continuous forward current(single diode loaded) - 215
Continuous forward current(double diode loaded) IF - 125
mA
Repetitive peak forward current IFRM 450 mA
Non-repetitive peak forward current
@square wave, Tj=125 prior to surge t=1µs
t=1ms
t=1s
IFSM
-
-
-
4
1
0.5
A
A
A
Total power dissipation(Note 1) Ptot 200 mW
Junction Temperature Tj - 150
°C
Storage Temperature Tstg -65 +150
°C
Note 1: Device mounted on an FR-4 PCB.
Electrical Characteristics @ Tj=25 unless otherwise specified
Parameters Symbol Conditions Min Typ. Max Unit
Forward voltage VF
IF=1mA
IF=10mA
IF=50mA
IF=150mA
- -
715
855
1
1.25
mV
mV
V
V
Reverse current IR
VR=25V
VR=75V
VR=25V,Tj=150
VR=75V,Tj=150
- -
30
2.5
60
100
nA
µA
µA
µA
Diode capacitance Cd VR=0V, f=1MHz - - 1.5 pF
Reverse recovery time trr
when switched from IF=10mA to
IR=10mA,RL=100, measured
at IR=1mA
- - 4 ns
Forward recovery voltage Vfr when switched from IF=10mA
tr=20ns - - 1.75 V
Thermal Characteristics
Symbol Parameter Conditions Value Unit
Rth, j-a thermal resistance from junction to ambient Note 1 625 /W
Note 1: Device mounted on an FR-4 PCB.
CYStech Electronics Corp.
Spec. No. : C303S3S
Issued Date : 2003.06.10
Revised Date
Page No. : 3/4
BAV70S3 CYStek Product Specification
Characteristic Curves
Forward Current vs Ambient Temperature
0
25
50
75
100
125
150
175
200
225
250
0 50 100 150 200
Ambient Temperature---Ta(℃)
Forward Current---IF(mA)
single diode loaded
double diode loaded
Forward Current vs Forward Voltage
0
25
50
75
100
125
150
175
200
225
250
275
0 0.2 0.4 0.6 0.8 1 1.2 1.4
Forward Voltage---VF(V)
Forward Current---IF(m
A)
Non-repetitive peak forward
current vs pulse duration
0.1
1
10
100
1 10 100 1000 10000
Pulse Duration---tp(μs)
Non-repetitive peak forward
current---IFSM(A)
Diode Capacitance vs Reverse Voltage
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 2 4 6 8 10 12 14 16
Reverse Voltage---VR(V)
Diode Capacitance---CD(pF)
CYStech Electronics Corp.
Spec. No. : C303S3S
Issued Date : 2003.06.10
Revised Date
Page No. : 4/4
BAV70S3 CYStek Product Specification
SOT-323 Dimension
*: Typical
Inches Millimeters Inches Millimeters
DIM Min. Max. Min. Max.
DIM Min. Max. Min. Max.
A 0.0315 0.0433 0.80 1.10 e1 0.0256 - 0.65 -
A1 0.0000 0.0039 0.00 0.10 He 0.0787 0.0886 2.00 2.25
bp 0.0118 0.0157 0.30 0.40 Lp 0.0059 0.0177 0.15 0.45
C 0.0039 0.0098 0.10 0.25 Q 0.0051 0.0091 0.13 0.23
D 0.0709 0.0866 1.80 2.20 v 0.0079 - 0.2 -
E 0.0453 0.0531 1.15 1.35 w 0.0079 - 0.2 -
e 0.0512 - 1.3 - θ - -
10° 0°
Notes: 1.Controlling dimension: millimeters.
2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material.
3.If there is any question with packing specification or packing method, please contact your local CYStek sales office.
Material:
Lead: 42 Alloy ; solder plating
Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0
Important Notice:
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek.
CYStek reserves the right to make changes to its products without notice.
CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems.
CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
He
E
A
A1 Q
Lp
e1
e
bp
12
3
D
W B
v A
Z
detail Z
A
C
θ
01 2
scale
mm
Style : Pin 1. Anode 2.Anode
3. Common Cathode
3-Lead SOT-323 Plastic
Surface Mounted Package
CYStek Package Code: S3
Marking:
TE
A
4