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Taiwan Semiconductor |
Small Signal Diode
Features
Fast switching speed
Surface device type mounting
Moisture sensitivity level 1
Matte Tin(Sn) lead finish with Nickel(Ni) underplate
Pb free version and RoHS compliant
Green compound (Halogen free) with suffix "G" on
packing code and prefix "G" on date code
Mechanical Data
Case :SOT-23 small outline plastic package
Terminal: Matte tin plated, lead free., solderable
per MIL-STD-202, Method 208 guaranteed
High temperature soldering guaranteed: 260°C/10s
Weight : 0.008gram (approximately)
BAS21 / A / C / S
225mW SMD Switching Diode
SOT-23
AF
B
C
D
E
G
Dimensions
A
B
C
D
E
F
G
Unit (mm)
Min Max
2.80 3.00
1.20 1.40
0.30 0.50
1.80 2.00
2.25 2.55
0.90 1.20
0.550 REF
Unit (inch)
Min Max
0.110 0.118
0.047 0.055
0.012 0.020
0.071 0.079
0.089 0.100
0.035 0.043
0.022 REF
BAS21
Ordering Information
BAS21S
BAS21C
BAS21A
Part No.
BAS21/A/C/S RF
Package
SOT-23
Packing
3Kpcs/ 7" Reel
Maximum Ratings and Electrical Characteristics
Rating at 25°C ambient temperature unless otherwise specified.
Maximum Ratings
Type Number
Power Dissipation
Repetitive Peak Reverse Voltage
Repetitive Peak Forward Current
Mean Forward Current
Non-Repetitive Peak Forward Surge Current (Note 1)
Thermal Resistance (Junction to Ambient) (Note 2)
Junction and Storage Temperature Range
Symbol
PD
VRRM
IFRM
IO
IFSM
RθJA
TJ, TSTG
Value
225
250
625
200
1
500
-55 to + 150
Units
mW
V
mA
mA
A
°C/W
°C
Electrical Characteristics
Type Number
Reverse Breakdown Voltage
IR=
100μA
Forward Voltage
IF= 100mA
IF= 200mA
Reverse Leakage Current
VR= 200V
Junction Capacitance
VR=1V, f=1.0MHz
Reverse Recovery Time IF=IR=10mA, RL=100Ω, IRR=1mA
Symbol
V(BR)
VF
IR
CJ
Trr
Min
250
-
-
-
-
-
Max
-
1.00
1.25
100
5
50.0
Units
V
V
V
μA
pF
ns
Notes:1. Test Condition : 8.3ms Single half Sine-Wave Superimposed on Rated Load (JEDEC Method) Pulse Width=1 μsec
Notes:2. Valid provided that electrodes are kept at ambient temperature
Version : B09
Small Signal Diode
Rating and Sharacteristic Curves
BAS21 / A / C / S
225mW SMD Switching Diode
1000
FIG 1 Typical Forward Characteristics
100
Ta=25°C
10
1
0.1
0.01
0
0.3 0.6 0.9 1.2 1.5 1.8
Instantaneous Forward Voltage (V)
2.1
FIG 3 Admissible Power Dissipation Curve
250
200
150
100
50
0
0 25 50 75 100 125 150 175 200
Ambient Temperature (°C)
FIG 2 Reverse Current vs Reverse Voltage
100
10 Ta=25°C
1
0.1
0.01
100
120 140 160
Ambient Temperature (°C)
180
Version : C09
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