
BAS19 / BAS20 / BAS21
Document number: DS12004 Rev. 21 - 2
2 of 4
www.diodes.com
November 2011
© Diodes Incorporated
BAS19 / BAS20 / BAS21
Maximum Ratings @T
A
= 25°C unless otherwise specified
Characteristic Symbol BAS19 BAS20 BAS21 Unit
Repetitive Peak Reverse Voltage
V
RRM
120 200 250 V
Working Peak Reverse Voltage
DC Blocking Voltage
V
RWM
V
R
100 150 200 V
RMS Reverse Voltage
V
R
RMS
71 106 141 V
Forward Continuous Current (Note 4)
I
FM
400 mA
Average Rectified Output Current (Note 4)
I
O
200 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0
s
@ t = 1.0s
I
FSM
2.5
0.5
A
Repetitive Peak Forward Surge Current (Note 4)
I
FRM
625 mA
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 4)
P
D
250 mW
Thermal Resistance Junction to Ambient Air (Note 4)
R
JA
500
°C/W
Operating and Storage Temperature Range
T
J
, T
STG
-65 to +150
°C
Electrical Characteristics @T
A
= 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 5) BAS19
BAS20
BAS21
V
(BR)R
120
200
250
⎯
V
I
R
= 100μA
Forward Voltage
V
F
⎯
1.0
1.25
V
I
F
= 100mA
I
F
= 200mA
Reverse Current @ Rated DC Blocking Voltage (Note 5)
I
R
⎯
100
15
nA
μA
T
J
= 25°C
T
J
= 100°C
Total Capacitance
C
T
⎯
5.0 pF
V
R
= 0, f = 1.0MHz
Reverse Recovery Time
t
rr
⎯
50 ns
I
F
= I
R
= 30mA,
I
rr
= 0.1 x I
R
, R
L
= 100Ω
Notes: 4. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com.
5. Short duration pulse test used to minimize self-heating effect.
0120
160
200
250
200
150
50
40
80
100
0
T , AMBIENT TEMPERATURE ( C)
Fig. 1 Power Derating Curve
A
°
,
WE
DISSI
A
I
N (mW)
D
Note 4
0.001
0.01
0.1
1
0
0.40.2
0. 6
I, I
S
A
A
E
S
WA
D
E
(A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
F
0.8
1.2
1.0
1.4
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