LESHAN RADIO COMPANY, LTD.
BAV70WT11/3
Dual Switching Diodes
1
3
2
BAV70WT1
CASE 41904, STYLE 5
SOT323 (SC70)
3
CATHODE
ANODE
1
ANODE
2
DEVICE MARKING
BAV70WT1 = A4
MAXIMUM RATINGS
(T
A
= 25C)
Rating
Symbol
Max
Unit
Reverse Voltage
V
R
70
Vdc
Forward Current
I
F
200
mAdc
Peak Forward Surge Current
I
FM(surge)
500
mAdc
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Total Device Dissipation FR5 Board
(1)
P
D
200
mW
T
A
= 25C
Derate above 25C
1.6
mW/C
Thermal Resistance, Junction to Ambient
R
JA
0.625
C/W
Total Device Dissipation
P
D
300
mW
Alumina Substrate
(2)
T
A
= 25C
Derate above 25C
2.4
mW/C
Thermal Resistance, Junction to Ambient
R
JA
417
C/W
Junction and Storage Temperature
T
J
, T
stg
55 to +150
C
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless otherwise noted)
Characteristic
Symbol
Min
Max
Unit
OFF CHARACTERISTICS
Reverse Breakdown Voltage
V
(BR)
70
--
Vdc
(I
(BR)
= 100
Adc)
Reverse Voltage Leakage Current
(V
R
= 70 Vdc)
I
R1
--
5.0
Adc
(V
R
= 50 Vdc)
I
R2
--
100
nAdc
Diode Capacitance
C
D
--
1.5
pF
(V
R
= 0, f = 1.0 MHz)
Forward Voltage
V
F
mVdc
(I
F
= 1.0 mAdc)
--
715
(I
F
= 10 mAdc)
--
855
(I
F
= 50 mAdc)
--
1000
(I
F
= 150 mAdc)
--
1250
Reverse Recovery Time
t
rr
--
6.0
ns
(I
F
= I
R
=10 mAdc, R
L
= 100
, I
R(REC)
= 1.0 mAdc) (Figure 1)
Forward Recovery Voltage
V
RF
--
1.75
V
(I
F
= 10 mAdc, t
r
= 20 ns) (Figure 2)
1. FR5 = 1.0
0.75
0.062 in.
2. Alumina = 0.4
0.3
0.024 in. 99.5% alumina.
3.For each individual diode while the seeond diode is unbiased.
LESHAN RADIO COMPANY, LTD.
BAV70WT12/3
BAV70WT1
Figure 1. Recovery Time Equivalent Test Circuit
Figure 2.
t
r
t
p
I
10%
90%
V
R
INPUT PULSE
+I
F
t
rr
OUTPUT PULSE
10% OF
VR
100 W
R
S
= 50
BAV70
SAMPLING
OSCILLOSCOPE
R
L
= 50
1 K
450
90%
10%
t
t
r
t
p
INPUT PULSE
V
V
FR
OUTPUT PULSE
t
I
R
S
= 50
BAV70
I
F
SAMPLING
OSCILLOSCOPE
R
L
= 50
LESHAN RADIO COMPANY, LTD.
BAV70WT13/3
BAV70WT1
100
0.2
0.4
V
F
, FORWARD VOLTAGE (VOLTS)
0.6
0.8
1.0
1.2
10
1.0
0.1
T
A
= 85
C
10
0
V
R
, REVERSE VOLTAGE (VOLTS)
1.0
0.1
0.01
0.001
10
20
30
40
50
1.0
0
V
R
, REVERSE VOLTAGE (VOLTS)
0.9
0.8
0.7
0.6
C D
, DIODE CAP
ACIT
ANCE (pF)
2
4
6
8
I F
, FOR
W
ARD CURRENT
(mA)
Figure 3. Forward Voltage
Figure 4. Leakage Current
Figure 5. Capacitance
T
A
= -40
C
T
A
= 25
C
T
A
= 150
C
T
A
= 125
C
T
A
= 85
C
T
A
= 55
C
T
A
= 25
C
I R
, REVERSE CURRENT
(
A)
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