BAS21TM
Document number: DS35388 Rev. 4 - 2
2 of 4
www.diodes.com
November 2013
? Diodes Incorporated
BAS21TM
ADVANCE INFORMATION
Maximum Ratings
(@TA
= +25°C, unless otherwise specified.)
Characteristic Symbol Value Unit
Non-Repetitive Peak Reverse Voltage
VRM
250 V
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
250 V
RMS Reverse Voltage
VR(RMS)
177 V
Forward Continuous Current (Note 5)
IFM
200 mA
Average Rectified Output Current (Note 5)
IO
250 mA
Non-Repetitive Peak Forward Surge Current @ t = 10μs
@ t = 100μs
@ t = 10ms
IFSM
10
6
2
A
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 5)
PD
300 mW
Thermal Resistance Junction to Ambient Air (Note 5)
RθJA
417
°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)
V(BR)R
250
?
V
IR
= 100μA
Forward Voltage
VF
?
?
1.0
1.25
V
IF
= 100mA
IF
= 200mA
Reverse Current (Note 5)
IR
?
100
100
nA
μA
VR
= 200V
VR
= 200V, T
J
= +150°C
Total Capacitance
CT
?
5 pF VR
= 0, f = 1.0MHz
Reverse Recovery Time
trr
?
50 ns IF = IR = 30mA, Irr = 0.1 x IR, RL = 100?
Note: 5. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
Short duration pulse test used to minimize self-heating effect.
0
125 175150
300
100
200
0
T , AMBIENT TEMPERATURE ( C)A
°
Fig. 1 Power Derating Curve, Total Package
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N (mW)
D
25
100
50
75
50
150
250
Note 5
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
V , INSTANTANEOUS FORWARD VOLTAGE (V)F
Fig. 2 Typical Forward Characteristics, Per Element
0.1
1
10
100
1,000
I, INS
T
AN
T
ANE
O
U
S
F
O
R
WA
R
D
C
U
R
R
EN
T
(mA)
F
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