Diodes BAS521LP - Manual (Page 2)

BAS521LP
Document number: DS32176 Rev. 5 - 2
2 of 4
www.diodes.com
April 2011
© Diodes Incorporated
BAS521LP
Maximum Ratings
@T
A
= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Repetitive Peak Reverse Voltage V RRM
325 V
Working Peak Reverse Voltage
DC Blocking Voltage V
RWM
V
R
325 V
Forward Current (Note 4) I
F
400 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0
μs
I
FSM
8.0 A
Repetitive Peak Forward Current @ t=8.3ms (Note 4) I
FRM
3.0 A
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 4) P
D
400 mW
Thermal Resistance Junction to Ambient Air (Note 4) R θJA 312 °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) V
(BR)R
300 ⎯ V I
R
= 100
μA
Forward Voltage V
F
⎯ 1.1 V I
F
= 100mA
Reverse Current (Note 5) I R
⎯
⎯
⎯
50
150
100
nA
nA
μA
V R = 5V
V R = 250V
V
R
= 250V, T
J
= 150
°C
Total Capacitance C
T
⎯ 5 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
= 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.
0 125 175
300
100
200
0
T , AMBIENT TEMPERATURE ( C)
Fig. 1 Power Derating Curve
A
°
P
,
P
O
WE
R
DIS
S
IP
A
T
IO
N (
m
W
)
D
25 100 50 75 150
50
150
250
400
350
Note 4
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
F
0.1
1
10
100
1,000
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
(m
A
)
F