LESHAN RADIO COMPANY, LTD.
BAV70WT1–1/3
Dual Switching Diodes
1
3
2
BAV70WT1
CASE 419–04, STYLE 5
SOT–323 (SC–70)
3
CATHODE
ANODE
1ANODE
2
DEVICE MARKING
BAV70WT1 = A4
MAXIMUM RATINGS (TA = 25°C)
Rating Symbol Max Unit
Reverse V oltage V R70 Vdc
Forward Current IF200 mAdc
Peak Forward Surge Current IFM(surge) 500 mAdc
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Total Device Dissipation FR–5 Board(1) PD200 mW
TA = 25°C
Derate above 25°C 1.6 mW/°C
Thermal Resistance, Junction to Ambient RθJA 0.625 °C/W
Total Device Dissipation PD300 mW
Alumina Substrate(2) TA = 25°C
Derate above 25°C 2.4 mW/°C
Thermal Resistance, Junction to Ambient RθJA 417 °C/W
Junction and Storage Temperature TJ, Tstg –55 to +150 °C
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic Symbol Min Max Unit
OFF CHARACTERISTICS
Reverse Breakdown V oltage V(BR) 70 — Vdc
(I(BR) = 100 µAdc)
Reverse Voltage Leakage Current
(VR = 70 Vdc) IR1 — 5.0 µAdc
(VR = 50 Vdc) IR2 — 100 nAdc
Diode Capacitance CD— 1.5 pF
(VR = 0, f = 1.0 MHz)
Forward Voltage VFmVdc
(IF = 1.0 mAdc) — 715
(IF = 10 mAdc) — 855
(IF = 50 mAdc) — 1000
(IF = 150 mAdc) — 1250
Reverse Recovery T ime trr — 6.0 ns
(IF= IR=10 mAdc, RL= 100Ω, IR(REC)= 1.0 mAdc) (Figure 1)
Forward Recovery V oltage VRF — 1.75 V
(IF = 10 mAdc, tr = 20 ns) (Figure 2)
1. FR–5 = 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.
BAV70WT1–2/3
BAV70WT1
Figure 1. Recovery Time Equivalent Test Circuit
Fig
ure 2.
trtp
I
10%
90%
VR
INPUT PULSE
+IFtrr OUTPUT PULSE
10%OF VR
100
RS = 50 Ω
BAV70 SAMPLING
OSCILLOSCOPE
RL = 50 Ω
1 KΩ450 Ω
90%
10%
t
trtp
INPUT PULSE
V
VFR
OUTPUT PULSE t
I
RS = 50 Ω
BAV70
IF
SAMPLING
OSCILLOSCOPE
RL = 50 Ω
LESHAN RADIO COMPANY, LTD.
BAV70WT1–3/3
BAV70WT1
100
0.2 0.4
VF, FORWARD VOLTAGE (VOLTS)
0.6 0.8 1.0 1.2
10
1.0
0.1
TA = 85°C
10
0
VR, REVERSE VOLTAGE (VOLTS)
1.0
0.1
0.01
0.001
10 20 30 40 50
1.0
0
VR, REVERSE VOLTAGE (VOLTS)
0.9
0.8
0.7
0.6
CD, DIODE CAPACITANCE (pF)
2468
IF, FORWARD CURRENT (mA)
Figure 3. Forward Voltage Figure 4. Leakage Current
Figure 5. Capacitance
TA = -40°C
TA = 25°C
TA = 150°C
TA = 125°C
TA = 85°C
TA = 55°C
TA = 25°C
IR, REVERSE CURRENT (µA)
