Diodes BAS521 User Manual
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BAS521
HIGH VOLTAGE SWITCHING DIODE
Features
• Fast Switching Speed: max. 50 ns
• High Reverse Breakdown Voltage: 300V
• Low Leakage Current: 100nA at room temperature
• Ultra Small Plastic SMD Package
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
SOD523
To
View
Mechanical Data
• Case: SOD-523
• Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020
• Terminal Connections: Cathode Bar
• Terminals: Finish - Matte Tin annealed over Alloy 42 leadframe.
• Solderable per MIL-STD-202, Method 208
• Weight: 0.0014 grams (approximate)
2
1
Device Schematic
Ordering Information (Note 4)
Part Number Case Packaging (Note 5)
BAS521-7 SOD523 3000/Tape & Reel
BAS521-13 SOD523 10000/Tape & Reel
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
5. Dispensed in every other cavity of the tape.
Marking Information
99
99 = Product Type Marking Code
Bar Denotes Cathode Side
BAS521
Document number: DS32175 Rev. 5 - 2
1 of 4
www.diodes.com
December 2012
© Diodes Incorporated
θ
(BR)
P
P
O
R
P
TIO
NST
N
TAN
O
US F
O
R
R
CUR
R
N
T
Maximum Ratings (@T
= +25°C, unless otherwise specified.)
A
Characteristic Symbol Value Unit
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)
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 6)
Thermal Resistance Junction to Ambient Air (Note 6)
Operating and Storage Temperature Range
Electrical Characteristics (@T
= +25°C, unless otherwise specified.)
A
BAS521
V
RRM
V
RWM
I
F
I
FSM
I
FRM
P
D
R
JA
, T
T
J
STG
300 V
300 V
250 mA
4.5 A
1 A
325 mW
385
-65 to +150
°C/W
°C
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 7)
Forward Voltage
Reverse Current (Note 7)
Total Capacitance
Reverse Recovery Time
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.
V
R
V
⎯
F
I
R
C
⎯
T
t
rr
350
300
Note 6
1,000
(mA)
300
⎯
⎯
⎯
⎯
⎯
V
1.1 V
50
150
100
nA
nA
μA
5 pF
50 ns
E
D
WA
E
A
100
10
1
N (mW)
A
DISSI
WE
,
D
250
200
150
100
50
IR = 100μA
IF = 100mA
V
= 5V
R
= 250V
V
R
V
= 250V, TJ = +150°C
R
VR = 0, f = 1.0MHz
= IR = 30mA,
I
F
= 0.1 x IR, RL = 100Ω
I
rr
0
0
25
50 75
T , AMBIENT TEMPERATURE ( C)
A
125 175
100
150
°
Fig. 1 Power Derating Curve, Total Package
0.1
F
I, I
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 Forwar d Charac te r istics, Per Element
BAS521
Document number: DS32175 Rev. 5 - 2
2 of 4
www.diodes.com
December 2012
© Diodes Incorporated
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