p
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
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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
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December 2012
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TANT
O
US R
R
CUR
RENT
BAS521
100,000
(nA)
10,000
SE
EVE
ANE
R
I , INS
T = 150ºC
A
T = 125ºC
A
1,000
100
10
1
0.1
0 50 100 150 200 250 300
V , INSTANTANEOUS REVERSE VOLT AGE (V)
R
Fig. 3 Typical Re v er se Characteristics, Per El em ent
T = 5ºCA8
T = 25ºC
A
T = - ºCA55
1.2
1.0
0.8
0.6
0.4
T
C , TOTAL CAPACIT A NCE (pF)
0.2
0
010203040
Package Outline Dimensions
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
L
H
C
A
B
M
K
SOD523
Dim Min Max
A 0.25 0.35
B 0.70 0.90
C 1.50 1.70
H 1.10 1.30
K 0.55 0.65
L 0.10 0.30
M 0.10 0.12
All Dimensions in mm
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
Y
BAS521
Document number: DS32175 Rev. 5 - 2
X1
X
Dimensions Value (in mm)
G 0.80
X 0.60
X1 2.00
Y 0.70
G
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
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Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
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representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2012, Diodes Incorporated
www.diodes.com
BAS521
BAS521
Document number: DS32175 Rev. 5 - 2
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