BAS19 / BAS20 / BAS21
SURFACE MOUNT FAST SWITCHING DIODE
Features
SOT-23
·
·
Fast Switching Speed
Surface Mount Package Ideally Suited for
Automatic Insertion
Dim
A
B
C
D
E
MinMax
0.37
1.20
2.30
0.89
0.45
1.78
2.80
0.013
0.903
0.45
0.85
0°
0.51
1.40
2.50
1.03
0.60
2.05
3.00
0.10
1.10
0.61
0.80
8°
·
·
For General Purpose Switching Applications
High Conductance
A
Mechanical Data
B
C
·
·
Case: SOT-23, Molded Plastic
TOP VIEW
G
H
J
D
G
Terminals: Solderable per MIL-STD-202,
Method 208
E
H
·
Case material - UL Flammability Rating
Classification 94V-0
K
M
K
L
J
·
·
·
·
·
·
Moisture sensitivity: Level 1 perJ-STD-020A
Polarity: See Diagram
L
M
a
BAS19 Marking: KA8, KT3, KT2
BAS20 Marking: KT2, KT3
BAS21 Marking: KT3
All Dimensions in mm
Weight: 0.008 grams (approx.)
@ T = 25°C unless otherwise specified
A
Maximum Ratings
Characteristic
Symbol
BAS19
BAS20
BAS21
Unit
VRRM
Repetitive Peak Reverse Voltage
120
200
250
V
VRWM
VR
Working Peak Reverse Voltage
DC Blocking Voltage
V
100
71
150
200
141
VR(RMS)
IFM
RMS Reverse Voltage
106
400
200
V
Forward Continuous Current
Average Rectified Output Current
mA
mA
IO
2.5
0.5
Non-Repetitive Peak Forward Surge Current @ t = 1.0ms
@ t = 1.0s
IFSM
A
IFRM
Pd
Repetitive Peak Forward Surge Current
Power Dissipation (Note 1)
625
250
mA
mW
°C/W
°C
RqJA
Thermal Resistance Junction to Ambient Air (Note 1)
Operating and Storage Temperature Range
500
Tj , TSTG
-65 to +150
@ TA = 25°C unless otherwise specified
Electrical Characteristics
Characteristic
Symbol
Min
Max
Unit
Test Condition
Reverse Breakdown Voltage (Note 2)
BAS19
BAS20
BAS21
120
200
250
V(BR)R
V
V
IR = 100mA
¾
1.0
1.25
IF = 100mA
IF = 200mA
VFM
Forward Voltage (Note 2)
¾
nA
Tj = 25°C
Tj = 100°C
100
15
IRM
CT
trr
Reverse Current @ Rated DC Blocking Voltage (Note 2)
Total Capacitance
¾
¾
¾
mA
VR = 0, f = 1.0MHz
5.0
50
pF
ns
IF = IR = 30mA,
Reverse Recovery Time
Irr = 0.1 x IR, RL = 100W
Note:
1. Part mounted on FR-4 board with recommended pad layout, which can be found on ourwebsite
at http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration pulse test used to minimize self-heating effect.
DS12004 Rev. 12 - 2
1 of 2
BAS19 / BAS20 / BAS21