Surface Mount Schottky Barrier
Diodes
*Extremely F
ast Swit
ching Speed
*Lo
w F
or
ward
V
oltage
*V
er
y Small Conduction Losses
*Schottky Bar
rier Diodes Encapsulated in a SO
T-323 Package
Description:
These schottky barrier diodes are designed for high speed
switching applications circuit pr
otection,
and voltage clamping
,
Extremely low forward voltage reduces c
onduction loss,
Miniature sur
face mount package is excellent f
or hand held and
por
table applications where spac
e is limited.
Features:
WEITRON
BA
T54W/BA
T54CW
BA
T54A
W/BA
T54SW
SMALL
SIGNAL
SCHOTTKY
DIODES
200m
AMPERES
30 V
OL
TS
hpp://www
.weitron.com.tw
SOT
-323(SC-70)
Unit:mm
SOT
-323 Outline Demensions
1
2
3
A
B
D
E
G
M
L
H
J
T
O
P
V
I
E
W
K
C
Dim
A
B
C
D
E
G
H
J
K
L
M
Min
0.30
1.15
2.00
-
0.30
1.20
1.80
0.00
0.80
0.42
0.10
Max
0.40
1.35
2.40
0.65
0.40
1.40
2.20
0.10
1.00
0.53
0.25
SOT
-323
*Lead(Pb)-F
ree
1/3
29-Jul-05
WEITRON
WEITRON
BA
T54W/BA
T54CW
BA
T54A
W/BA
T54SW
Maximum Ratings
(
T
J
=125 C Unless other
wise noted)
Characteristic
Reverse
V
oltage
A
ver
age Rec
tifier
F
or
ward C
urrent
P
eak Repetitive
F
or
ward C
urrent
Rated
V
R
,
Square
W
av
e,20KHz
Operating Junction
T
emperatur
e Range
Storage
T
emperatur
e Range
Symbol
V
R
I
F(A
V
)
I
FRM
I
FSM
T
J
T
stg
BA
T54W/CW/A
W/SW
Unit
30
200
300
-55 to +125
-55 to +150
V
olts
mA
mA
mA
C
C
Device Marking
Item
Marking
Eqivalent Circuit diagram
1
3
1
2
3
1
2
3
BA
T54W
BA
T54CW
BA
T54A
W
BA
T54SW
B4 ,
KL5
L3 ,
KL7
B6 ,
B7 ,
KL6
B8 ,
KL8
1
2
3
Electrical Characteristics
(
T
A
=25 C Unless other
wise noted)
Characteristic
Symbol
Reverse Breakdo
wn
V
oltage (I
R
=10µA)
F
or
ward
V
oltage
I
F
=0.1mA
I
F
=1.0mA
I
F
=10mA
I
F
=30mA
I
F
=100mA
T
otal Capacitance
(
V
R
=1.0V
,
f=1.0MHz)
Reverse L
eakage
Reverse Reco
ver
Time
(I
F
=I
R
=10mA,
I
R(Rec)
=1.0mA)
V
(BR)R
V
F
C
T
I
R
T
rr
Min
T
yp
Max
Unit
30
0.22
0.29
0.35
0.41
0.52
0.24
0.32
0.40
0.50
1.00
7.6
0.5
10
2.0
5.0
V
olts
V
olts
F
P
µAdc
nS
http://www
.weitron.com.tw
Non-Repetitive
F
or
ward C
urrent(t 1.0s)
600
(
V
R
=25V
)
2/3
29-Jul-05
FIG.1 Recovery Time Equivalent T
est Cir
cuit
WEITRON
BA
T54W/BA
T54CW
BA
T54A
W/BA
T54SW
0
5
10
15
20
25
30
14
12
10
8
6
4
2
0
V
R
,REVERSE VOL
T
AGE (V)
C
T
,TOT
AL
CAP
ACIT
ANCE (
p
F)
FIG.4 T
oral Capacitance
http://www
.weitron.com.tw
V
R
,REVERSE VOL
T
AGE (V)
I
R
, REVERSE CURRENT (µA)
FIG.3 Leakage Current
0
5
10
15
20
25
30
1000
100
10
1.0
0.1
0.01
0.001
T
A=150 C
T
A=125 C
T
A=85 C
T
A=25 C
0.0
0.1
0.2
0.3
0.4
0.5
0.6
100
10
1.0
0.1
150 C
25 C
-40 C
-55 C
85 C
125 C
V
F
,
FOR
W
ARD VOL
T
AGE (V)
I
F
,
FOR
W
ARD CURRENT (mA)
FIG.2 Forward V
oltage
+10V
820
Ω
Ω
Ω
Ω
2.0K
100 µH
0.1µF
50 OUTPUT
PULSE
GENERA
TOR
50 INPUT
SAMPLING
OSCILLOSCOPE
I
F
D.U.T
.
0.1µF
V
R
INPUT SIGNAL
t
r
t
p
10%
90%
t
I
F
I
R
t
rr
t
I
R(REC)
=1.0mA
OUTPUT PULSE
(I
F
=I
R
=10mA, MEASURED
A
T I
R(REC)
=1.0mA
Notes:1. A
2.0 k variable resistor for a Forward Current (I
F
) 0f 10 mA
2. Input pules is adjusted so I
R
(peak) is equal to 10 mA
3. t
p
t
rr
»
WEITRON
3/3
29-Jul-05
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