Surface Mount Switching Diode
Features:
BAS19/BAS20
WEITRON
SWITCHING DIODE
200mAMPERS
120-250VOLTS
SOT-23 Outline Dimensions
SOT-23
Unit:mm
Dim
A
B
C
D
E
G
H
J
K
L
M
Min
0.35
1.19
2.10
0.85
0.46
1.70
2.70
0.01
0.89
0.30
0.076
Max
0.51
1.40
3.00
1.05
1.00
2.10
3.10
0.13
1.10
0.61
0.25
A
B
D
E
G
M
L
H
J
TOP VIEW
K
C
http://www.weitron.com.tw
1
2
3
BAS21
*Fast Switching Speed
*Surface Mount Package Ideally
*High Conductance
*For General Purpose Switching Applications
Mechanical Data:
*Case: SOT-23 Molded Plastic
*Terminals: Solderable Per MIL-STD-202, Method 208
*Polarity: See Eqivalent Circuit Diagram
*Weight: 0.008grams(approx)
Suited for
Automatic Insertion
WEITRON
WE IT R ON
Maximum Ratings
(TA=25 C Unless otherwise noted)
Electrical Characteristics
(TA=25 C Unless otherwise noted)
Characteristic
Symbol
Forward Voltage
Total Capacitance
(VR=1.0V, f=1.0MHz)
Reverse Leakage
@Rated DC Blocking Voltage
IR
Cj
VF
Max
Unit
Volts
PF
nAdc
http://www.weitron.com.tw
BAS19/BAS20
BAS21
IF
IF
=100mA
=200mA
1.0
1.25
-
-
-
5.0
100
50
Min
Reverse Recovery Time
IF R
=I =30mA
Irr=0.1*IR,RL=100
trr
nS
NOTE:
1. Valid provided that terminals are kept at ambient temperature.
BAS19
BAS20
BAS21
Non-Repetitive
Non-Repetitive
Peak Reverse Voltage
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Forward Continuous Current
(1)
(1)
(1)
Average Rectified Output Current
Peak Forward Surge Current
@t=1.0us
@t=1.0s
Power Dissipation
Thermal Resistance Junction to
Ambient Air
Operating and Storage
Temperature Range
V
RRM
V
RM
V
R
V
RWM
IFM
Io
IFSM
Pd
R JA
Tj ,T
STG
120
100
200
150
250
200
400
200
2.5
0.5
250
500
-65 to +150
Volts
Volts
mA
mA
A
mW
K/W
C
Characteristic
Symbol
Unit
WEITRON
http://www.weitron.com.tw
BAS19/BAS20
10
1.0
100
1000
0.1
0.01
0
1
2
I
,
I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
W
A
R
D
C
U
R
R
E
N
T
(
m
A
)
F
V , INST ANT ANEOUS FOR WARD VOL TAGE (V)
Fi g. 1 Forward Characteristics
F
T = 25 C
j
1
10
100
0.1
0.01
0
100
200
I
,
L
E
A
K
A
G
E
C
U
R
R
E
N
T
(
A
)
R
T , JUNCTION TEMPERA TURE ( C )
Fig. 2 Leakage Current vs Junction Temperature
j
u
Device Marking
Item
Marking
Eqivalent Circuit diagram
1
3
BAS19
BAS20
BAS21
JP
JR
JS
BAS21
JS
PDF 
ZIP