Surface Mount Switching Diode
RATING AND CHARACTERISTIC CURVES (BAS21)
COMCHIP
www.comchip.com.tw
820
Ω
+10 V
2k
100
µH
0.1
µF
DUT
50
Ω Οutput
Pulse
Generator
50
Ω
Input
Sampling
Oscilloscope
90%
VR
Input Signal
IR
I
R(REC) = 1 mA
Output Pulse
(IF = IR = 10 mA; measured
at
I
R(REC) = 1 mA)
IF
0.1
µF
tr
10%
tp
t
IF
trr
t
Notes: 1. A 2.0 kΩ variable resistor adjusted for a Forward Current (IF) of 10 mA.
Notes:
2. Input pulse is adjusted so IR(peak) is equal to 10 mA.
Notes:
3. tp » trr
Figure 1. Recovery Time Equivalent Test Circuit
3500
3000
2500
Forward Voltage (mV)
7000
6000
5000
Reverse Current (nA)
TA = 155°C
TA = –55°C
4000
3000
6
5
4
3
2
1
0
2000
1500
1000
500
0
0.1
0.2
0.5
1
2
5
10
20
50
100
200
TA = 155
°C
TA = 25
°C
TA = 25°C
TA = –55
°C
1
2
5
10
20
50
100
200
300
Forward Current (mA)
Reverse Voltage (V)
Figure 2. Forward Voltage
Figure 3. Reverse Leakage
MDS0209006A
Page 2
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