Document
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 An Automotive-Compliant Part is Available Under
Separate Data Sheet (BAS21WQ)
BAS19W - BAS21W
SURFACE MOUNT FAST SWITCHING DIODE
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
Top View
Top View Internal Schematic
Ordering Information (Note 4)
Notes:
Part Number
Compliance
Case
Packaging
BAS19W-7-F
AEC-Q101
SOT323
3,000/Tape & Reel
BAS20W-7-F
AEC-Q101
SOT323
3,000/Tape & Reel
BAS21W-7-F
AEC-Q101
SOT323
3,000/Tape & Reel
BAS21W-13-F
AEC-Q101
SOT323
10,000/Tape & Reel
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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
KT3 = Product Type Marking Code YM = Date Code Marking Y = Year ex: F = 2018 M = Month ex: 9 = September
Date Code Key Year Code
Month Code
2000 L
Jan 1
2001 M
Feb 2
… 2016 2017 2018 2019 2020 2021 2022 2023
…
F
G
H
I
J
K
L
M
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
3
4
5
6
7
8
9
O
2024 N
Nov N
2025 O
Dec D
BAS19W - BAS21W
Document number: DS30118 Rev. 16 - 2
1 of 5 www.diodes.com
June 2018
© Diodes Incorporated
BAS19W - BAS21W
Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Characteristic 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
Repetitive Peak Forward Surge Current
@ t = 1.0µs @ t = 1.0s
Symbol VRRM VRWM VR VR(RMS) IFM IO
IFSM
IFRM
BAS19W 120 100 71
BAS20W 200
150
106 400 200 2.5 0.5 625
BAS21W 250 200 141
Unit V
V
V mA mA A mA
Thermal Characteristics
Characteristic Power Dissipation Thermal Resistance Junction to Ambient Air (Note 5) Operating and Storage Temperature Range
Symbol PD RθJA
TJ , TSTG
Value 200 625
-65 to +150
Unit mW °C/W °C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic Reverse Breakdown Voltage (Note 6)
Forward Voltage Reverse Current @ Rated DC Blocking Voltage (Note 6) Total Capacitance Reverse Recovery Time
BAS19W BAS20W BAS21W
Symbol
Min
120
V(BR)R
200
250
VF
IR
CT
tRR
Max 1.0 1.25
100 15
5.0
50
Unit
Test Condition
V
IR = 100µA
V
IF = 100mA
IF = 200mA
nA TJ = +25°C µA TJ = +100°C
pF VR = 0, f = 1.0MHz
ns
IF = IR = 30mA,
IRR = 0.1 x IR, RL = 100Ω
Notes:
5. Part mounted on FR-4 PC board with minimum recommended pad layout per Diodes Inc.’s website at http://www.diodes.com/package-outlines.html. IFM, IO are valid provided that terminals are kept at ambient temperature.
6. Short duration pulse test used to minimize self-heating effect.
BAS19W - BAS21W
Document number: DS30118 Rev. 16 - 2
2 of 5 www.diodes.com
June 2018
© Diodes Incorporated
PD, POWER DISSIPATION (mW)
250
Note 5
200
150
100
50
0
0
100
200
TA, AMBIENT TEMPERATURE (°C)
Fig. 1 Power Derating Curve
100
10
1
0.1
0.01
0.001
0.0001 0
50
100
150
200
250
VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics
CT, TOTAL CAPACITANCE (pF)
IF, INSTANTANEOUS FORWARD CURRENT (A)
BAS19W - BAS21W
1
0.1
0.01
0.001 0
0.2 0.4 0. 6 0.8 1.0 1.2 1.4
VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics
4.0
3.5
3.0
2.5
2.0
1.5 1.0
0.5
0.0 0
10
20
30
40
VR, DC REVERSE VOLTAGE (V) Fig. 4 Total Capacitance vs. Reverse Voltage
BAS19W - BAS21W
Document number: DS30118 Rev. 16 - 2
3 of 5 www.diodes.com
June 2018
© Diodes Incorporated
Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
SOT323
D
A2 A1
c e
b
a L
E
E1
F
e1
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version. SOT323
X Y
Y1 G
C
BAS19W - BAS21W
SOT323
Dim Min Max Typ
A1 0.00 0.10 0.05
A2 0.90 1.00 0.