BAT54, A, C, S
®
SMALL SIGNAL SCHOTTKY DIODE
FEATURES AND BENEFITS
A
VERY SMALL CONDUCTION LOSSES
NEGLIGIBLE SWITCHING LOSSES
LOW FORWARD VOLTAGE DROP
SURFACE MOUNT DEVICE
K1
K
A
K2
A
K2
K
BAT54A
BAT54
DESCRIPTION
A1
Schottky barrier diodes encapsulated in a SOT-23
small SMD packages.
Double diodes with different pining are available.
A
K1
Nc
K
A1
A2
A1
K2
K
K1
A2
A2
A2
A1
K2
K1
BAT54S
BAT54C
SOT-23
ABSOLUTE RATINGS (limiting values)
Symbol
VRRM
IF
Parameter
Value
Unit
Repetitive peak reverse voltage
30
V
Continuous forward current
0.3
A
1
A
250
mW
- 65 to +150
°C
IFSM
Surge non repetitive forward current
tp=10ms sinusoidal
Ptot
Power dissipation (note 1)
Tamb = 25°C
Tstg
Maximum storage temperature range
Tj
Maximum operating junction temperature *
150
°C
TL
Maximum temperature for soldering during 10s
260
°C
Note 1: for double diodes, Ptot is the total dissipation of both diodes.
* :
dPtot
1
<
thermal runaway condition for a diode on its own heatsink
Rth(j−a)
dTj
June 1999 - Ed: 3A
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BAT54, A, C, S
THERMAL RESISTANCE
Symbol
Parameter
Value
Unit
500
°C/W
Junction to ambient (*)
Rth (j-a)
(*) Mounted on epoxy board with recommended pad layout.
STATIC ELECTRICAL CHARACTERISTICS (per diode)
Symbol
Parameters
VF *
Tests conditions
Forward voltage drop
IR **
Tj = 25°C
Reverse leakage current
Tj = 25°C
Min.
Typ.
Max.
Unit
IF = 0.1 mA
240
mV
IF = 1 mA
320
IF = 10 mA
400
IF = 30 mA
500
IF = 100 mA
900
VR = 30 V
Tj = 100°C
Pulse test :
µA
1
100
* tp = 380 µs, δ < 2%
** tp = 5 ms, δ < 2%
DYNAMIC CHARACTERISTICS (Tj = 25 °C)
Symbol
Parameters
C
Junction
capacitance
trr
Reverse recovery
time
Tests conditions
VR = 1 V
Tj = 25°C
IF = 10 mA
Irr = 1 mA
PF(av)(W)
0.30
δ = 0.1
δ = 0.05
δ = 0.5
10
pF
5
ns
F = 1 MHz
IF(av)(A)
0.25
δ=1
0.20
0.20
0.15
0.15
0.10
0.10
T
T
0.05
0.05
IF(av) (A)
2/5
Unit
0.30
0.25
0.00
0.00
Max.
Fig.2 : Average forward current versus ambient
temperature ( δ = 1).
0.35
δ = 0.2
Typ.
IR = 10 mA Tj = 25°C
RL = 100 Ω
Fig.1 : Average forward power dissipation versus
average forward current.
0.35
Min.
0.05
0.10
0.15
0.20
δ=tp/T
0.25
tp
0.30
0.00
δ=tp/T
0
Tamb(°C)
tp
25
50
75
100
125
150
BAT54, A, C, S
Fig.3 : Non repetitive surge peak forward current
versus overload duration (maximum values).
IM(A)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3 IM
0.2
0.1
0.0
1E-3
Fig.4 : Relative variation of thermal impedance
junction to ambient versus pulse duration (alumine
substrate 10mm x 8mm x 0.5mm).
Zth(j-a)/Rth(j-a)
1.00
δ = 0.5
δ = 0.2
Ta=25°C
δ = 0.1
0.10
Ta=50°C
Ta=100°C
T
Single pulse
t
δ=0.5
tp(s)
t(s)
1E-2
1E-1
1E+0
Fig.5 : Reverse leakage current versus reverse
voltage applied (typical values).
0.01
1E-3
1E-2
1E-1
δ=tp/T
1E+0
1E+1
tp
1E+2
Fig.6 : Reverse leakage current versus junction
temperature.
IR(µA)
IR(µA)
1E+4
VR=30V
1E+2
1E+3
Tj=100°C
1E+1
1E+2
1E+1
1E+0
Tj=50°C
1E+0
Tj=25°C
1E-1
1E-1
Tj(°C)
VR(V)
1E-2
0
5
10
15
1E-2
20
25
30
Fig.7 : Junction capacitance versus reverse
voltage applied (typical values).
0
25
75
100
125
150
Fig.8 : Forward voltage drop versus forward
current (typical values).
C(pF)
IFM(A)
5E-1
10
F=1MHz
Tj=25°C
1E-1
5
Tj=100°C
1E-2
Tj=50°C
Tj=25°C
2
1E-3
VFM(V)
VR(V)
1
50
1
2
5
10
20
30
1E-4
0.0 0.1 0.2
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
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BAT54, A, C, S
PACKAGE MECHANICAL DATA
SOT-23
A
E
DIMENSIONS
REF.
D
e1
S
A1
L
H
Inches
Min.
Max.
Min.
Max.
A
0.89
1.4
0.035
0.055
A1
0
0.1
0
0.004
B
0.3
0.51
0.012
0.02
c
0.085
0.18
0.003
0.007
D
2.75
3.04
0.108
0.12
e
0.85
1.05
0.033
0.041
e1
1.7
2.1
0.067
0.083
E
1.2
1.6
0.047
0.063
H
2.1
2.75
0.083
0.108
e
B
Millimeters
L
S
0.6 typ.
0.35
0.65
0.024 typ.
0.014
0.026
c
Ordering type
Marking
Package
Weight
Base qty
Delivery mode
BAT54FILM
D86
SOT-23
0.01g
3000
Tape & reel
BAT54AFILM
D84
SOT-23
0.01g
3000
Tape & reel
BAT54CFILM
D87
SOT-23
0.01g
3000
Tape & reel
BAT54SFILM
D88
SOT-23
0.01g
3000
Tape & reel
Epoxy meets UL94,V0
4/5
BAT54, A, C, S
OPTIMIZED SOT-23 FOOTPRINT DIMENSIONS
(in millimeters and inches)
FOOTPRINT DIMENSIONS
COMPATIBLE SOT-23 / SC-59
(in millimeters and inches)
0.9
0.035
0.9
0.035
1
0.040
0.9
0.035
1.1
0.043
0.9
0.035
mm
inch
mm
inch
1
0.040
1
0.040
1.1
0.043
1.45
0.037
2
0.079
2.35
0.92
2.35
0.92
1.9
0.075
0.9
0.035
0.9
0.035
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use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
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