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BAS19 / BAS20 / BAS21
Document number: DS12004 Rev. 21 - 2
2 of 4
www.diodes.com
November 2011
? Diodes Incorporated
BAS19 / BAS20 / BAS21
Maximum Ratings
@TA
= 25°C unless otherwise specified
Characteristic Symbol BAS19 BAS20 BAS21 Unit
Repetitive Peak Reverse Voltage
VRRM
120 200 250 V
Working Peak Reverse Voltage
DC Blocking Voltage
VRWM
VR
100 150 200 V
RMS Reverse Voltage
VR(RMS)
71 106 141 V
Forward Continuous Current (Note 4)
IFM
400 mA
Average Rectified Output Current (Note 4)
IO
200 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0μs
@ t = 1.0s
IFSM
2.5
0.5
A
Repetitive Peak Forward Surge Current (Note 4)
IFRM
625 mA
Thermal Characteristics
Characteristic
Symbol
Value
Unit
Power Dissipation (Note 4)
PD
250
mW
Thermal Resistance Junction to Ambient Air (Note 4)
RθJA
500
°C/W
Operating and Storage Temperature Range
TJ , TSTG
-65 to +150
°C
Electrical Characteristics
@TA
= 25°C unless otherwise specified
Characteristic
Symbol
Min
Max
Unit
Test Condition
Reverse Breakdown Voltage (Note 5)
BAS19
BAS20
V(BR)R
200
?
V
IR
= 100
μA
250
BAS21
120
Forward Voltage
VF
?
1.0
1.25
V
IF
= 100mA
IF
= 200mA
Reverse Current @ Rated DC Blocking Voltage (Note 5)
IR
?
100
15
nA
μA
TJ
= 25
°C
TJ
= 100
°C
Total Capacitance
CT
?
5.0
pF
VR
= 0, f = 1.0MHz
Reverse Recovery Time
trr
?
50
ns
IF
= I
R
= 30mA,
Irr = 0.1 x IR, RL
= 100
Ω
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.
0
0140
80
20160
200
250
200
150
50
100
T , AMBIENT TEMPERATURE ( C)A
°
Fig. 1 Power Derating Curve
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N (mW)
D
Note 4
0.001
0
0.01
0.1
1
0.40.2
0. 6
I, I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
WA
R
D
C
U
R
R
E
N
T
(A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)F
Fig. 2 Typical Forward Characteristics
0.8
1.2
1.0
1.4
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