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BAS521_15 Datasheet, PDF (2/4 Pages) Diodes Incorporated – HIGH VOLTAGE SWITCHING DIODE
BAS521
Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Characteristic
Repetitive Peak Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Forward Current (Note 6)
Non-Repetitive Peak Forward Surge Current @ t = 1.0µs
Repetitive Peak Forward Current (Note 6)
Symbol
VRRM
VRWM
IF
IFSM
IFRM
Value
300
300
250
4.5
1
Unit
V
V
mA
A
A
Thermal Characteristics
Characteristic
Power Dissipation (Note 6)
Thermal Resistance Junction to Ambient Air (Note 6)
Operating and Storage Temperature Range
Symbol
PD
RθJA
TJ, TSTG
Value
325
385
-65 to +150
Unit
mW
°C/W
°C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic
Reverse Breakdown Voltage (Note 7)
Forward Voltage
Reverse Current (Note 7)
Total Capacitance
Reverse Recovery Time
Symbol
Min
V(BR)R
300
VF
⎯
⎯
IR
⎯
⎯
CT
⎯
trr
⎯
Max
⎯
1.1
50
150
100
5
50
Unit
V
V
nA
nA
μA
pF
ns
Test Condition
IR = 100μA
IF = 100mA
VR = 5V
VR = 250V
VR = 250V, TJ = +150°C
VR = 0, f = 1.0MHz
IF = IR = 30mA,
Irr = 0.1 x IR, RL = 100Ω
Notes:
6. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com.
7. Short duration pulse test used to minimize self-heating effect.
350
300
Note 6
250
200
150
100
50
0
0 25 50 75 100 125 150 175
TA, AMBIENT TEMPERATURE (°C)
Fig. 1 Power Derating Curve, Total Package
1,000
100
10
1
0.1
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics, Per Element
BAS521
Document number: DS32175 Rev. 5 - 2
2 of 4
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December 2012
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