
Lead-free Green
DS30118 Rev. 11 - 2
1 of 3
BAS19W - BAS21W
www.diodes.com
Diodes Incorporated
Mechanical Data
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-020C
Terminal Connections: See Diagram
Terminals: Solderable per MIL-STD-202, Method 208
Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe).
BAS19W Marking: KA8 or KT2 or KT3 (See Page 3)
BAS20W Marking: KT2 or KT3 (See Page 3)
BAS21W Marking: KT3 (See Page 3)
Weight: 0.006 grams (approximate)
Maximum Ratings
@ T
A
= 25 C unless otherwise specified
BAS19W - BAS21W
SURFACE MOUNT FAST SWITCHING DIODE
Fast Switching Speed
Surface Mount Package Ideally Suited for Automatic
Insertion
For General Purpose Switching Applications
High Conductance
Lead Free/RoHS Compliant (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
"Green" Device (Note 4 and 5)
SOT-323
Min
Dim
A
B
C
D
E
G
H
J
K
L
M
Max
0.25
0.40
1.15
1.35
2.00
2.20
0.65 Nominal
0.30
0.40
1.20
1.40
1.80
2.20
0.0
0.10
0.90
1.00
0.25
0.40
0.10
0.18
0
8
All Dimensions in mm
TOP VIEW
A
M
J
L
E
D
B C
H
K
G
Characteristic
Symbol
Min
Max
Unit
Test Condition
Reverse Breakdown Voltage (Note 2) BAS19W
BAS20W
BAS21W
V
(BR)R
120
200
250
V
I
R
= 100 A
Forward Voltage
V
F
1.0
1.25
V
I
F
= 100mA
I
F
= 200mA
Reverse Current
@ Rated DC Blocking Voltage (Note 2)
I
R
100
15
nA
A
T
j
= 25 C
T
j
= 100 C
V
R
= 0, f = 1.0MHz
I
F
= I
R
= 30mA,
I
rr
= 0.1 x I
R
, R
L
= 100
Total Capacitance
C
T
5.0
pF
Reverse Recovery Time
t
rr
50
ns
Electrical Characteristics
Characteristic
Symbol
V
RRM
V
RWM
V
R
V
R(RMS)
I
FM
I
O
BAS19W
120
BAS20W
200
BAS21W
250
Unit
V
Repetitive Peak Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current (Note 1)
Average Rectified Output Current (Note 1)
100
150
200
V
71
106
400
200
141
V
mA
mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0 s
@ t = 1.0s
I
FSM
2.5
0.5
A
Repetitive Peak Forward Surge Current
Power Dissipation
Thermal Resistance Junction to Ambient Air (Note 1)
I
FRM
P
d
R
JA
T
j
, T
STG
625
200
625
mA
mW
°C/W
Operating and Storage Temperature Range
-65 to +150
C
@ T
A
= 25 C unless otherwise specified
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 test pulse 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 0609 (week 9, 2006) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code 0609 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
Features