Features
• Fast Switching Speed
• Surface Mount Package Ideally Suited for Automated Insertion
• For General Purpose Switching Applications
• High Conductance
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• Qualified to AEC-Q101 Standards for High Reliability
Top View
Mechanical Data
• Case: SOT323
• Case Material: Molded Plastic, "Green" Molding Compound,
UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020D
• Terminal Connections: See Diagram
• Terminals: Solderable per MIL-STD-202, Method 208
• Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe)
• Weight: 0.006 grams (approximate)
SOT323
BAS19W - BAS21W
SURFACE MOUNT FAST SWITCHING DIODE
e3
Top View
Internal Schematic
Ordering Information (Note 4)
Part Number Compliance Case Packaging
BAS19W-7-F AEC-Q101 SOT-323 3,000/Tape & Reel
BAS20W-7-F AEC-Q101 SOT-323 3,000/Tape & Reel
BAS21W-7-F AEC-Q101 SOT-323 3,000/Tape & Reel
BAS21W-13-F AEC-Q101 SOT-323 10,000/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/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. For packaging details, go to our website at http://www.diodes.com/products/packages.html
Marking Information
Date Code Key
Year 2000 2001 … 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Code L M … W X Y Z A B C D E F
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D
XXX
BAS19W - BAS21W
Document number: DS30118 Rev. 14 - 2
XXX = Product Type Marking Code
YM = Date Code Marking
YM
Y = Year ex: B = 2014
M = Month ex: 9 = September
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February 2014
© Diodes Incorporated
Maximum Ratings (@T
= +25°C, unless otherwise specified.)
A
Characteristic Symbol BAS19W BAS20W BAS21W Unit
Repetitive Peak Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current (Note 5)
Average Rectified Output Current (Note 5)
Non-Repetitive Peak Forward Surge Current @ t = 1.0µs
@ t = 1.0s
Repetitive Peak Forward Surge Current
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation
Thermal Resistance Junction to Ambient Air (Note 5)
Operating and Storage Temperature Range
V
V
V
R(RMS)
IFM
I
FSM
I
FRM
RRM
RWM
VR
IO
TJ , T
BAS19W - BAS21W
120 200 250 V
100 150 200 V
71 106 141 V
400 mA
200 mA
2.5
0.5
625 mA
200 mW
625 °C/W
-65 to +150
R
PD
θ
JA
STG
A
°C
Electrical Characteristics (@T
= +25°C, unless otherwise specified.)
A
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 6) BAS19W
BAS20W
BAS21W
Forward Voltage
Reverse Current
@ Rated DC Blocking Voltage (Note 6)
Total Capacitance
Reverse Recovery Time
Notes: 5. Part mounted on FR-4 PC board with minimum recommended pad layout, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
6. Short duration pulse test used to minimize self-heating effect.
BAS19W - BAS21W
Document number: DS30118 Rev. 14 - 2
V
(BR)R
VF
IR ⎯
CT
trr ⎯
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120
200
250
⎯
⎯
⎯
⎯
⎯
1.0
1.25
100
15
5.0 pF
50 ns
V
I
R
IF = 100mA
V
IF = 200mA
TJ = +25°C
nA
µA
TJ = +100°C
VR = 0, f = 1.0MHz
IF = IR = 30mA,
I
rr
= 100µA
= 0.1 x IR, RL = 100Ω
February 2014
© Diodes Incorporated