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Product Summary
VR(V)
30
IF (A)
0.5
VF Max (V)
@ +25°C
0.45
IR Max (µA)
@ +25°C
500
Applications
DC-DC Converters
Mobile Telecommunications
Blocking Diodes
Reverse Polarity Protection
B0530WSQ
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
Features and Benefits
Low Forward Voltage Drop
Guard Ring Construction for Transient Protection
High Conductance
Totally Lead-Free Finish & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
PPAP Capable (Note 4)
Mechanical Data
Case: SOD323
Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Lead-Free Plating (Matte Tin Finish Annealed over Alloy 42
Leadframe). Solderable per MIL-STD-202, Method 208
Polarity: Cathode Band
Weight: 0.004 grams (Approximate)
SOD323
Top View
Ordering Information (Note 5)
Notes:
Part Number
B0530WSQ-13-F
B0530WSQ-7-F
Compliance
Automotive
Automotive
Case
SOD323
SOD323
Packaging
10,000/Tape & Reel
3,000/Tape & Reel
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html 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. Automotive products are AEC-Q101 qualified and are PPAP capable. Refer to http://www.diodes.com/quality/product_compliance_definitions/.
5. For packaging details, go to our website at http”//www.diodes.com/products/packages.html.
Marking Information
SOD323
SE = Product Type Marking Code
B0530WSQ
Document number: DS38382 Rev. 3 - 2
1 of 5
www.diodes.com
December 2015
© Diodes Incorporated

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B0530WSQ
Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
Characteristic
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Average Rectified Output Current (See Figure 1)
Peak Repetitive Forward Current tP = 8.3ms, Half Sine-Wave
Non-Repetitive Peak Forward Surge Current
8.3ms Single Half Sine-Wave Superimposed on Rated Load
Symbol
VRRM
VRWM
VR
VR(RMS)
IO
IFRM
IFSM
Value
30
21
0.5
3.5
2
Unit
V
V
A
A
A
Thermal Characteristics
Characteristic
Power Dissipation (Note 6)
Typical Thermal Resistance Junction to Ambient (Note 6)
Operating and Storage Temperature Range
Symbol
PD
RθJA
TJ, TSTG
Value
235
426
-40 to +125
Unit
mW
°C/W
°C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic
Reverse Breakdown Voltage (Note 7)
Forward Voltage Drop
Leakage Current (Note 7)
Total Capacitance
Symbol
V(BR)R
VF
IR
CT
Min
30
Typ
0.40
58
Max
0.36
0.45
80
100
500
Unit
V
V
µA
pF
Test Conditions
IR = 500µA
IF = 0.1A
IF = 0.5A
VR = 15V
VR = 20V
VR = 30V
f = 1MHz, VR = 0V DC
Notes:
6. Part mounted on FR-4 PC board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
7. Short duration pulse test used to minimize self-heating effect.
B0530WSQ
Document number: DS38382 Rev. 3 - 2
2 of 5
www.diodes.com
December 2015
© Diodes Incorporated

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B0530WSQ
240
210
180
150
120
90
60
30
0
0 0.1 0.2 0.3 0.4 0.5 0.6
IF(AV), AVERAGE FORWARD CURRENT (A)
Fig. 1 Forward Power Dissipation
10,000 TA = 125ºC
1,000
TA = 100ºC
100
10
TA = 75ºC
TA = 25ºC
1 TA = 0ºC
0.1
0.01
TA = -65ºC
0.001
0
10 20
30
VR, INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 3 Typical Reverse Characteristics
0.8
0.7
Note 5
0.6
0.5
0.4
0.3
0.2
0.1
0
0
25 50 75 100 125
TT, TERMINAL TEMPERATURE (°C)
Fig. 5 Forward Current Derating Curve
150
10
1
TA = 125ºC
0.1
TA = 100ºC
TA = 75ºC
0.01
TA = 25ºC
TA = 0ºC
0.001
0
TA = -65ºC
0.2 0.4 0.6 0.8 1.0
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
70
f = 1MHz
60
50
40
30
20
10
0
0 5 10 15 20
VR, DC REVERSE VOLTAGE (V)
Fig. 4 Total Capacitance vs. Reverse Voltage
B0530WSQ
Document number: DS38382 Rev. 3 - 2
3 of 5
www.diodes.com
December 2015
© Diodes Incorporated