BAS40W/AW/CW/SW
1 of 3 2003 Won-Top Electronics
BAS40W / AW / CW / SW
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
!
Low Turn-on Voltage L
!
Fast Switching A
!
PN Junction Guard Ring for Transient and
ESD Protection
!
Designed for Surface Mount Application B C
!
Plastic Material UL Recognition Flammability
Classification 94V-O M
E D
H
Mechanical Data
!
Case: SOT-323, Molded Plastic K
!
Terminals: Plated Leads Solderable per J
MIL-STD-202, Method 208 G
!
Polarity: See Diagrams Below
!
Weight: 0.006 grams (approx.)
!
Mounting
Position:
Any
TOP VIEW TOP VIEW TOP VIEW TOP VIEW
BAS40W Marking: S40 BAS40AW Marking: S42 BAS40CW Marking: S43 BAS40SW Marking: S44
Maximum Ratings and Electrical Characteristics, Single Diode
@T
A
=25C unless otherwise specified
Characteristic
Symbol
Value
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
40
V
Forward Continuous Current (Note 1)
I
F
200
mA
Forward Surge Current (Note 1) @ t < 1.0s
I
FSM
600
mA
Power Dissipation (Note 1)
P
d
200
mW
Typical Thermal Resistance, Junction to Ambient Air (Note 1)
R
JA
625
C/W
Operating and Storage Temperature Range T
j
, T
STG
-55 to +1
50 C
Note: 1. Device on fiberglass substrate.
WTE
POWER SEMICONDUCTORS
SOT-323
Dim
Min
Max
A
0.30
0.40
B
1.15
1.35
C
2.00
2.20
D
0.65 Nominal
E
0.30
0.40
G
1.20
1.40
H
1.80
2.20
J
--
0.10
K
0.90
1.10
L
0.25
--
M
0.05
0.15
All Dimensions in mm
TOP VIEW
BAS40W/AW/CW/SW 2 of 3 2003 Won-Top Electronics
Maximum Ratings and Electrical Characteristics, Single Diode
@T
A
=25C unless otherwise specified
Characteristic
Symbol
Min
Typ
Max
Unit
Test Condition
Reverse Breakdown Voltage
V
(BR)R
40
--
--
V
@ I
R
= 10A
Forward Voltage
V
F
--
--
380
500
1000
mV
@ I
F
= 1.0mA, t
p
< 300s
@ I
F
= 10mA, t
p
< 300s
@ I
F
= 40mA, t
p
< 300s
Reverse Leakage Current
I
R
--
20
200
nA
@ V
R
= 30V, t
p
< 300s
Junction Capacitance
C
j
--
4.0
5.0
pF
V
R
= 0V, f = 1.0MHz
Reverse Recovery Time
t
rr
--
--
5.0
nS
I
F
= 10mA through I
R
= 10mA
to I
R
= 1.0mA, R
L
= 100
0
100
200
T , AMBIENT TEMPERATURE (C)
A
Fig. 4 Power Derating Curve, Total Package
P
,
POWER
D
ISSIP
A
T
ION
(mW)
d
0
50
100
150
200
250
0
1
3
2
0
10
20
40
30
C
,
T
O
T
A
L
C
AP
ACIT
ANCE
(pF)
T
V , REVERSE VOLTAGE (V)
R
Fig. 3 Typical Capacitance
f = 1MHz
0.1
1
10
100
1000
10000
0
10
20
30
40
V , INSTANTANEOUS REVERSE VOLTAGE (V)
R
Fig. 2 Typical Reverse Characteristics
I
,
INST
ANT
A
NE
O
US
REVERSE
CURRENT
(
nA)
R
T = -40C
A
T = 25C
A
T = 75C
A
T = 125C
A
T = 0C
A
0.01
0.1
1
0.001
0.0001
0
1.0
0.6
0.8
0.4
0.2
I
,
INST
ANT
ANE
O
US
F
O
R
W
ARD
CURRENT
(A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
F
Fig. 1 Typical Forward Voltage
T = -40C
A
T = 125C
A
T = 75C
A
T = 25C
A
T = 0C
A
BAS40W/AW/CW/SW
3 of 3 2003 Won-Top Electronics
ORDERING INFORMATION
Product No.
!
!
!
!
Package Type
Shipping Quantity
BAS40W-T1
SOT-323
3000/Tape & Reel
BAS40W-T3
SOT-323
10000/Tape & Reel
BAS40AW-T1
SOT-323
3000/Tape & Reel
BAS40AW-T3
SOT-323
10000/Tape & Reel
BAS40CW-T1
SOT-323
3000/Tape & Reel
BAS40CW-T3
SOT-323
10000/Tape & Reel
BAS40SW-T1
SOT-323
3000/Tape & Reel
BAS40SW-T3
SOT-323
10000/Tape & Reel
Products listed in bold are WTE Preferred devices.
!
T1 suffix refers to a 7" reel. T3 suffix refers to a 13" reel.
Shipping quantity given is for minimum packing quantity only. For minimum order
quantity, please consult the Sales Department.
RECOMMENDED FOOTPRINT
inches(mm)
Won-Top Electronics Co., Ltd (WTE) has checked all information carefully and believes it to be correct and accurate. However, WTE cannot assume any
responsibility for inaccuracies. Furthermore, this information does not give the purchaser of semiconductor devices any license under patent rights to
manufacturer. WTE reserves the right to change any or all information herein without further notice.
WARNING: DO NOT USE IN LIFE SUPPORT EQUIPMENT. WTE power semiconductor products are not authorized for use as critical components in life
support devices or systems without the express written approval.
We power your everyday.
Won-Top Electronics Co., Ltd.
No. 44 Yu Kang North 3rd Road, Chine Chen Dist., Kaohsiung, Taiwan
Phone: 886-7-822-5408 or 886-7-822-5410
Fax: 886-7-822-5417
Email: sales@wontop.com
Internet: http://www.wontop.com
0.035
(0.90)
0.028
(0.70)
0.035
(0.90)
0.075
(1.90)
0.025
(0.64)
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