DATA SHEET
BAS21A/C/S
SURFACE MOUNT, HIGH VOLTAGE, DUAL SWITCHING DIODES
VOLTAGE
FEATURES
• High reverse bearkdown voltage.
• Fast switching speed.
.056(1.40)
.047(1.20)
.007(.20)MIN
250 Volts
POWER
250mWatts
SOT- 23
Unit: inch (mm)
.119(3.00)
.110(2.80)
• Low reverse leakage current.
• Surface mount package ideally suited for automatic insertion.
• Galvanically isolated dual configurations to save board space.
•
In compliance with EU RoHS 2002/95/EC directives
.103(2.60)
.083(2.10)
.066(1.70)
.006(.15)
.002(.05)
.044(1.10)
.006(.15)MAX
.020(.50)
.013(.35)
Case: SOT-23, Plastic
Terminals: Solderable per MIL-STD-750, Method 2026
Approx. Weight: 0.008 gram
Marking : BAS21A:21A, BAS21C:21C, BAS21S:21S
ABSOLUTE RATINGS
PA RA M E TE R
M a xi m um R e ve r s e V o l t a g e
P e a k R e ve r s e V o l t a g e
A v e r a g e R e c t i f i e d C u r r e n t a t Te m p = 2 5
O
C
N o n- r e p e t i t i ve P e a k F o r w a r d S ur g e C ur r e nt a t t = 1 . 0
µ
s
S ym b o l
V
R
V
RRM
I
Va l ue
250
250
0 .2
4.0
U ni t s
V
V
A
A
O
I
F S M
THERMAL CHARACTERISTICS
PA RA ME TE R
P o we r D i s s i p a ti o n
The r m a l Re s i s ta nc e , J unc ti o n to A m b i e nt
J u n c t i o n Te m p e r a t u r e
S t o r a g e Te m p e r a t u r e
S ym b o l
P
TOT
R
θ
J A
T
J
T
S TG
COMMON ANODE
Va lue
250
357
150
-55 to 150
COMMON CATHODE
.035(0.90)
MECHANICAL DATA
Uni ts
mW
O
.086(2.20)
C /W
O
C
C
O
SERIES
3
3
3
1
2
1
2
1
2
BAS21A
REV.0.1-FEB.11.2009
BAS21C
BAS21S
PAGE . 1
ELECTRICAL CHARACTERISTICS
PARAMETER
Reverse Breakdown Voltage
Reverse Current
Forward Voltage
Maximum Junction Capacitance
Reverse Recovery Time
Symbol
V
(BR)
I
R
V
F
C
J
Trr
I
R
=100 uA
V
R
=200 V
V
R
=200 V, T
J
= 150
O
C
I
F
=1.0mA
I
F
=100mA
V
R
=0V, f=1.0MH
Z
I
F
=I
R
=30mA, R
L
=100
Ω
Test Condition
MIN.
--
--
--
--
--
TYP.
--
--
--
--
--
MAX.
250
0.1
100
0.70
1.00
5.0
50
Units
V
uA
V
pF
ns
ELECTRICAL CHARACTERISTICS CURVES
1000
100
T
J
=25
O
C
100
I
R
, LEAKAGE CURRENT, uA
FORWARD CURRENT, mA
10
10
1.0
1.0
0.1
0.1
0.01
0
1.0
2.0
0.01
0
100
O
200
FORWARD VOLTAGE, VOLTS
T
J
, JUNCTION TEMPERATURE, C
Fig.2 LEAKAGE CURRENT vs JUNCTION TEMPERATURE
FIG. 1-TYPICAL FORWARD CHARACTERISTIC
P
D
,
POWER DISSIPATION (mW)
0
2
4
6
8
6.0
500
DIODE CAPACITANCE, pF
4.5
400
300
3.0
200
1.5
100
0
0
50
100
150
200
REVERSE VOLTAGE, VOLTS
AMBIENT TEMPERATURE( C)
FIG. 4 POWER DERATING CURVE
O
FIG. 3 TYPICAL JUNCTION CAPACITANCE
REV.0.1-FEB.11.2009
PAGE . 2
MOUNTING PAD LAYOUT
ORDER INFORMATION
• Packing information
T/R - 12K per 13" plastic Reel
T/R - 3K per 7” plastic Reel
LEGAL STATEMENT
Copyright PanJit International, Inc 2009
The information presented in this document is believed to be accurate and reliable. The specifications and information herein
are subject to change without notice. Pan Jit makes no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose. Pan Jit products are not authorized for use in life support devices or systems. Pan Jit
does not convey any license under its patent rights or rights of others.
REV.0.1-FEB.11.2009
PAGE . 3
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