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Comchip Technology |
Surface Mount Switching Diode
BAS21
Voltage: 250 Volts
Current: 0.2Amp
COMCHIP
www.comchip.com.tw
Feature
High Voltage Switching Diode
Surface Mount Package Ideally Suited for
Automatic Insertion
For General Purpose Switching
Applications
Mechanical Data
Case: SOT -23, Plastic
Terminals : Solderable per NIL-STD -202,
Method 208
Approx. Weight: 0.008 gram
.119 (3.0)
.110 (2.8)
.020 (0.5)
SOT-23
Top View
.037(0.95) .037(0.95)
Maximum Ratings
Continuous Reverse Voltage
Peak Forward Current
Peak Surge Forward Current
Rating
.020 (0.5) .020 (0.5)
.103 (2.6)
.086 (2.2)
Dimensions in inches (millimeters)
Symbol
VR
IF
IFSM(surge)
Value
250
200.0
625
Units
VDC
mAdc
mAdc
Thermal Characteristics
Characteristic
Total Device Dissipation FR– 5 Board(1)
Derate above 25°C
TA = 25°C
Thermal Resistance, Junction to Am bient
Total Device Dissipation Alumina Substrate,(2) TA = 25°C
Derate above 25°C
Thermal Resistance, Junction to Am bient
Junction and Storage Temperature
Symbol
PD
R JA
PD
R JA
TJ, Tstg
Max
225.0
1.8
556.0
300
2.4
417
–55 to +150
Units
mW
mW/°C
°C/W
mW
mW/°C
°C/W
°C
Electrical Characterics (TA = 25°C unless otherwise noted)
Characteristic
Symbol
Reverse Voltage Leakage Current
VR = 200 Vdc
VR = 200 Vdc, TJ = 150°C
IR
Reverse Breakdown Voltage (BR = 100 Adc)
V(BR)
Forward Voltage
F = 100 mAdc
F = 200 mAdc
VF
Diode Capacitance (VR = 0, f = 1.0 MHz))
Reverse Recovery Time (IF = IR = 30 mAdc, RL = 100 )
CD
Trr
1.FR–5 = 1.0 X 0.75X 0.062 in. 2.Alumina = 0.4X 0.3X 0.024 in. 99.5% alumina.
Min
-
-
250
Max
1.0
100
-
1000
1250
5
50
Units
uAdc
Vdc
mV
pF
nS
MDS0209006A
Page 1
Surface Mount Switching Diode
COMCHIP
www.comchip.com.tw
RATING AND CHARACTERISTIC CURVES (BAS21)
+10 V
820 Ω
2k
100 µH
0.1 µF
IF
0.1 µF
tr tp
10%
t
IF
trr t
50 Ω Οutput
Pulse
Generator
DUT
50 Ω Input
90%
Sampling
Oscilloscope
VR
Input Signal
IR(REC) = 1 mA
IR
Output Pulse
(IF = IR = 10 mA; measured
at IR(REC) = 1 mA)
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 TA = –55°C
2000
1500 TA = 155°C
1000 TA = 25°C
500
0
0.1 0.2
0.5 1 2
5 10 20
Forward Current (mA)
Figure 2. Forward Voltage
50 100 200
7000
6000
5000
4000
3000
6
5
4
3
2
1
0
1
TA = 155°C
TA = 25°C
TA = –55°C
2
5 10 20
50 100
Reverse Voltage (V)
Figure 3. Reverse Leakage
200 300
MDS0209006A
Page 2
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