BAS20DW-BAS21DW
Document number: DS30617 Rev. 11 - 2 1 of 4
www.diodes.com November 2011
© Diodes Incorporated
BAS20DW-BAS21DW
SURFACE MOUNT HIGH VOLTAGE D UAL SWITCHING DIODE
Features
Fast Switching Speed
Surface Mount Package Ideally Suited for Automated Insertion
High Reverse Breakdown Voltage
Low Leakage Current
Lead Free By Design/RoHS Compliant (Note 1)
"Green" Device (Notes 2 and 3)
Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
Case: SOT363
Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminal Connections: See Diagram
Terminals: Finish Matte Tin annealed over Alloy 42
leadframe. Solderable per MIL-STD-202, Method 208
Weight: 0.003 grams (approximate)
Ordering Information (Note 4)
Part Number Qualification Case Packaging
BAS20DW-7 Commercial SOT363 3,000/Tape & Reel
BAS20DW-13 Commercial SOT363 10,000/Tape & Reel
BAS20DWQ-13 Automotive SOT363 10,000/Tape & Reel
BAS21DW-7 Commercial SOT363 3,000/Tape & Reel
Notes: 1. No purposefully added lead.
2. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com.
3. Product manufactured with Date Code UO (week 40, 2007) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code UO are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
4. For packaging details, go to our website at http://www.diodes.com.
Marking Information
Date Code Key
Year 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Code S T U V W X Y Z A B C
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
Top View
SOT363
Top View
Internal Schematic
xxx = Product Type Marking Code:
BAS20DW Marking: KT2 or KT3
BAS21DW Marking: KT3
YM = Date Code Marking
Y = Year (ex: Y = 2011)
M = Month (ex: 9 = September)
xxx YM
xxx YM
BAS20DW-BAS21DW
Document number: DS30617 Rev. 11 - 2 2 of 4
www.diodes.com November 2011
© Diodes Incorporated
BAS20DW-BAS21DW
Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic Symbol BAS20DW BAS21DW Unit
Repetitive Peak Reverse Voltage VRRM 200 250 V
Working Peak Reverse Voltage
DC Blocking Voltage VRWM
VR 150 200 V
RMS Reverse Voltage VR
(
RMS
)
106 141 V
Forward Continuous Current IFM 400 mA
Average Rectified Output Current IO 200 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0
μ
s
@ t = 1.0s IFSM 2.5
0.5 A
Repetitive Peak Forward Surge Current IFRM 625 mA
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 5) PD 200 mW
Thermal Resistance Junction to Ambient Air (Note 5) R
θ
JA 625 °C/W
Operating and Storage Temperature Range TJ, TSTG -65 to +150 °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 6) BAS20DW
BAS21DW V(BR)R 200
250
V IR = 100μA
Forward Voltage VF 1.0
1.25 V IF = 100mA
IF = 200mA
Reverse Current
@ Rated DC Blocking Voltage (Note 6) IR 100
15 nA
μA Tj = 25°C
T
j
= 100°C
Total Capacitance CT 5.0 pF
VR = 0, f = 1.0MHz
Reverse Recovery Time trr 50 ns
IF = IR = 30mA,
Irr = 0.1 x IR, RL = 100Ω
Notes: 5. 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.pd f.
6. Short duration pulse test used to minimize self-heating effect.
-50 050100150
250
200
150
50
100
0
T , AMBIENT TEMPERA TURE ( C)
Fig. 1 Derating Curve - Total
A
°
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N (mW)
d
0.001
0.01
0.1
1
00.40.2 0. 6
I, INS
T
AN
T
ANE
O
U
S
F
O
R
WA
R
D
C
U
R
R
EN
T
(A)
F
V , INST ANTANEOUS FORW ARD VOLT AGE (V)
Fig. 2 Typical Forward Characteristics
F
0.8 1.21.0 1.4
BAS20DW-BAS21DW
Document number: DS30617 Rev. 11 - 2 3 of 4
www.diodes.com November 2011
© Diodes Incorporated
BAS20DW-BAS21DW
0.0001
0.01
0.001
0.1
1
10
100
050 100 200150 250
V , INSTANTANEOUS REVERSE VOLT AGE (V)
Fig. 3 Typical Reverse Characteristics
R
0.0
0.5
1.0
1.5
3.5
3.0
2.5
2.0
4.0
010 20 40
30
C
,
T
O
T
AL
C
A
P
A
C
I
T
AN
C
E (p
F
)
T
V , REVERSE VOL TAGE (V)
Fig. 4 Typical Capacitance vs. Reverse Voltage
R
Package Outline Dimensions
Suggested Pad Layout
SOT363
Dim Min Max
A 0.10 0.30
B 1.15 1.35
C 2.00 2.20
D 0.65 Typ
F 0.40 0.45
H 1.80 2.20
J 0 0.10
K 0.90 1.00
L 0.25 0.40
M 0.10 0.22
α 0° 8°
All Dimensions in mm
Dimensions Value (in mm)
Z 2.5
G 1.3
X 0.42
Y 0.6
C1 1.9
C2 0.65
A
M
JL
D
B C
H
K
F
X
Z
Y
C1
C2
C2
G
BAS20DW-BAS21DW
Document number: DS30617 Rev. 11 - 2 4 of 4
www.diodes.com November 2011
© Diodes Incorporated
BAS20DW-BAS21DW
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