BAS19W - BAS21W
SURFACE MOUNT FAST SWITCHING DIODE
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Features
Mechanical Data
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Fast Switching Speed
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Case: SOT-323
Case Material: Molded Plastic, "Green" Molding Compound,
Note 5. 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
Surface Mount Package Ideally Suited for Automated Insertion
For General Purpose Switching Applications
High Conductance
Lead Free/RoHS Compliant (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
"Green" Device (Notes 4 and 5)
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Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe)
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BAS19W Marking: KA8 or KT2 or KT3 (See Page 2)
BAS20W Marking: KT2 or KT3 (See Page 2)
BAS21W Marking: KT3 (See Page 2)
Weight: 0.006 grams (approximate)
SOT-323
TOP VIEW
Internal Schematic
TOP VIEW
Maximum Ratings @T = 25°C unless otherwise specified
A
Characteristic
Repetitive Peak Reverse Voltage
Symbol
BAS19W
BAS20W
BAS21W
Unit
V
120
200
250
VRRM
VRWM
VR
Working Peak Reverse Voltage
DC Blocking Voltage
100
71
150
200
141
V
RMS Reverse Voltage
106
400
200
2.5
0.5
V
VR(RMS)
IFM
Forward Continuous Current (Note 1)
Average Rectified Output Current (Note 1)
Non-Repetitive Peak Forward Surge Current
mA
mA
IO
@ t = 1.0μs
@ t = 1.0s
A
IFSM
IFRM
Repetitive Peak Forward Surge Current
625
mA
Thermal Characteristics
Characteristic
Symbol
PD
Value
200
Unit
Power Dissipation
mW
°C/W
°C
Thermal Resistance Junction to Ambient Air (Note 1)
Operating and Storage Temperature Range
625
Rθ
JA
-65 to +150
TJ , TSTG
Electrical Characteristics @T = 25°C unless otherwise specified
A
Characteristic
Reverse Breakdown Voltage (Note 2)
Symbol
Min
Max
⎯
⎯
Unit
Test Condition
BAS19W
BAS20W
BAS21W
120
200
250
V
V(BR)R
IR = 100μA
⎯
IF = 100mA
IF = 200mA
TJ = 25°C
TJ = 100°C
1.0
1.25
Forward Voltage
V
VF
⎯
nA
μA
Reverse Current
@ Rated DC Blocking Voltage (Note 2)
100
15
IR
CT
trr
⎯
⎯
⎯
Total Capacitance
5.0
50
pF
VR = 0, f = 1.0MHz
IF = IR = 30mA,
Irr = 0.1 x IR, RL = 100Ω
Reverse Recovery Time
ns
Notes:
1. 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.
2. Short duration pulse test used to minimize self-heating effect.
3. No purposefully added lead.
4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
5. Product manufactured with Date Code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
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www.diodes.com
March 2008
© Diodes Incorporated
BAS19W - BAS21W
Document number: DS30118 Rev. 13 - 2