BAT54-Y
Automotive small signal Schottky diodes
Datasheet - production data
BAT54FILMY
(single)
BAT54SFILMY
(series)
Description
The BAT54 series use the 40 V Schottky barrier
diodes packaged in SOT-23 and SOT-323.
These devices are suitable for automotive
applications.
Table 1: Device summary
Symbol
Value
300 mA
40 V
7 pF
150 °C
SOT-23
BAT54WFILMY
(single)
BAT54CWFILMY
(common cathode)
BAT54AWFILMY
(common anode)
BAT54SWFILMY
(series)
I
F
V
RRM
C (typ.)
T
j
(max.)
SOT-323
Configurations in top view
Features
AEC-Q101 qualified
Low conduction and reverse losses
Negligible switching losses
Low forward and reverse recovery times
Extremely fast switching
Surface mount device
Low capacitance diode
PPAP capable
ECOPACK
®
2 compliant component
October 2017
DocID17696 Rev 3
1/11
www.st.com
This is information on a product in full production.
Characteristics
BAT54-Y
1
Characteristics
Table 2: Absolute ratings (limiting values at 25 °C, unless otherwise specified)
Symbol
V
RRM
I
F
I
FSM
T
stg
T
j
T
L
Notes:
(1)
(dP
tot
/dT
j
)
Parameter
Repetitive peak reverse voltage
Continuous forward current
Surge non repetitive forward current
Storage temperature range
Operating junction temperature range
(1)
Maximum soldering temperature
t
p
= 10 ms sinusoidal
Value
40
300
1
-65 to +150
-40 to +150
260
Unit
V
mA
A
°C
°C
°C
< (1/R
th(j-a)
) condition to avoid thermal runaway for a diode on its own heatsink.
Table 3: Thermal parameters
Symbol
R
th(j-a)
Notes:
(1)
Epoxy
Parameter
Junction to ambient
(1)
SOT-23
SOT-323
Value
500
550
Unit
°C/W
printed circuit board with recommended pad layout
Table 4: Static electrical characteristics
Symbol
I
R
(1)
Parameter
Reverse leakage current
Test conditions
T
j
= 25 °C
T
j
= 100 °C
V
R
= 30 V
I
F
= 0.1 mA
I
F
= 1 mA
V
F
(2)
Forward voltage drop
T
j
= 25 °C
I
F
= 10 mA
I
F
= 30 mA
I
F
= 100 mA
Notes:
(1)
Pulse
(2)
Pulse
Min.
-
-
-
-
-
-
-
Typ.
-
-
-
-
-
-
-
Max.
1
100
240
320
400
500
900
Unit
µA
mV
test: t
p
= 5 ms, δ < 2 %
test: t
p
= 380 µs, δ < 2%
Table 5: Dynamic characteristics
Symbol
C
t
rr
Parameter
Diode capacitance
Reverse recovery time
Test conditions
V
R
= 1 V, F = 1 MHz
I
F
= 10 mA, I
R
= 10 mA, T
j
= 25 °C
I
rr
= 1 mA, R
L
= 100 Ω
Min.
-
-
Typ.
7
Max.
10
5
Unit
pF
ns
2/11
DocID17696 Rev 3
BAT54-Y
Characteristics
1.1
Characteristics (curves)
Figure 1: Average forward power dissipation
versus average forward current
0.35
Figure 2: Average forward current versus ambient
temperature (δ = 1)
0.35
P(W)
δ = 0.05
δ = 0.2
δ = 0.1
δ = 0.5
δ= 1
I
F(AV)
(A)
0.30
0.25
0.20
0.15
0.30
0.25
0.20
0.15
T
0.10
0.05
I
F(AV)
(A)
0.00
0.00
0.05
0.10
0.15
0.20
0.10
tp
0.35
T
δ
= tp/T
0.25
0.30
0.05
0.00
0
δ
=tp/T
25
tp
T
amb
(°C)
50
75
100
125
150
Figure 3: Reverse leakage current versus reverse
applied voltage (typical values)
1.E+02
Figure 4: Reverse leakage current versus junction
temperature
1.E+04
I
R
(µA)
T
j
= 100 °C
I
R
[T
j
] / I
R
[T
j
=25°C]
V
R
= 3V
1.E+01
1.E+03
1.E+02
1.E+00
T
j
= 50 °C
1.E+01
T
j
= 25 °C
1.E-01
1.E+00
V
R
(V)
T
j
(°C)
1.E-01
0
25
50
75
100
125
150
1.E-02
0
5
10
15
20
25
30
Figure 5: Junction capacitance versus reverse
applied voltage (typical values)
10
Figure 6: Forward voltage drop versus forward
current (typical values)
1.E+00
C(pF)
F = 1 MHz
V
OSC
= 30 mV
RMS
T
j
= 25 °C
I
FM
(A)
T
j
= 100 °C
1.E-01
1.E-02
T
j
= 50 °C
T
j
= 25 °C
1.E-03
V
R
(V)
1
1
10
100
T
j
= -40 °C
V
FM
(V)
1.E-04
0.0
0.1
0.2 0.3
0.4
0.5
0.6 0.7
0.8
0.9
1.0 1.1
1.2
1.3
DocID17696 Rev 3
3/11
Characteristics
BAT54-Y
Figure 7: Relative variation of thermal impedance junction to ambient versus pulse duration
(SOT-23)
1.E+00
Z
th(j-a)
/R
th(j-a)
Single pulse
SOT23
1.E-01
Alumine substrate
10 x 8 x 0.5 mm
t
P
(s)
1.E-02
1.E-03
1.E-02
1.E-01
1.E+00
1.E+01
1.E+02
4/11
DocID17696 Rev 3
BAT54-Y
Package
information
2
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
®
specifications, grade definitions and product status are available at:
www.st.com.
ECOPACK
®
is an ST trademark.
Epoxy meets UL94, V0
Lead-free packages
2.1
SOT23 package information
Figure 8: SOT23-3L package outline
DocID17696 Rev 3
5/11
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