BAT54J / W / AW / CW / SW
SMALL SIGNAL SCHOTTKY DIODE
FEATURES AND BENEFITS
VERYSMALLCONDUCTION LOSSES
NEGLIGIBLESWITCHINGLOSSES
LOW FORWARD VOLTAGEDROP
SURFACEMOUNTDEVICE
DESCRIPTION
Schottky barrier diodes encapsulated either in
SOT-323 or SOD-323smallSMD packages.
Single and doublediodeswith differentpining are
available.
K
BAT54W
K
BAT54CW
NC
A
A2
A1
BAT54J
NC
K
A
A2
K
A1
SOT-323
K2
A
K2
K1
A
K1
BAT54AW
A2
K1
A1
K2
A2
K2
K1
A1
BAT54SW
86
AK
SOD-323
ABSOLUTE RATINGS
(limitingvalues)
Symbol Parameter Value Unit
V
I
RRM
FSM
P
T
Repetitivepeak reversevoltage 30 V
I
Continuousforward current 0.3 A
F
Surgenon repetitive forwardcurrent tp=10mssinusoidal 1 A
Powerdissipation(note1)
tot
Tamb= 25°C
Maximumstorage temperaturerange - 65 to +150 °C
stg
SOD-323 230 mW
SOT-323
Tj Maximumoperating junctiontemperature* 150 °C
T
Note 1:for double diodes, Ptot isthe totaldissipationof bothdiodes
dPtot
*:
June 1999 - Ed: 2A
Maximumtemperaturefor solderingduring 10s 260 °C
L
1
dTj
<
Rth(j−a
thermal runawayconditionfor a diode on its own heatsink
)
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BAT54J/ W / AW / CW / SW
THERMALRESISTANCE
Symbol Parameters Value Unit
R
th (j-a)
Junctionto ambient(*) SOD-323 550 °C/W
SOT-323
°
(*)Mountedon epoxy board,withrecommendedpadlayout.
STATICELECTRICAL CHARACTERISTICS
(per diode)
Symbol Parameters Testsconditions Min. Typ. Max. Unit
V
* Forwardvoltagedrop Tj = 25°CI
F
** Reverseleakage current Tj = 25°CV
I
R
= 0.1 mA 240 mV
F
= 1 mA 320
I
F
= 10 mA 400
I
F
I
= 30 mA 500
F
= 100 mA 900
I
F
=30V 1
R
Tj = 100°C 100
Pulse test : * tp =380 µs, δ <2%
** tp =5 ms, δ <2%
DYNAMICCHARACTERISTICS(Tj = 25°C)
C/W
µ
A
Symbol Parameters Tests conditions Min. Typ. Max. Unit
C Junction
Tj=25°CV
R
= 1 V F =1 MHz 10 pF
capacitance
t
rr
Reverserecovery
time
Fig. 1-1: Forward voltage drop versus forward
current(typicalvalues,low level).
IFM(A)
2.00E-2
1.80E-2
1.60E-2
1.40E-2
1.20E-2
1.00E-2
8.00E-3
6.00E-3
4.00E-3
2.00E-3
0.00E+0
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
Tj=100°C
Tj=50°C
IF=10mA IR=10mA Tj=25°C
I
= 1 mA RL=100Ω
rr
Fig. 1-2:
Forward voltage drop versus forward
current(typicalvalues,high level).
IFM(A)
5E-1
1E-1
Tj=25°C
Tj=50°C
1E-2
VFM(V)
1E-3
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
5ns
Tj=100°C
Tj=25°C
VFM(V)
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BAT54J/ W / AW / CW / SW
Fig. 2:
Reverse leakage current versus reverse
voltageapplied (typicalvalues).
IR(µA)
1E+2
Tj=100°C
1E+1
1E+0
1E-1
1E-2
0 5 10 15 20 25 30
Fig. 4:
Junction capacitance versus reverse
Tj=50°C
Tj=25°C
VR(V)
voltageapplied (typicalvalues).
C(pF)
10
5
F=1MHz
Tj=25°C
Fig. 3:
Reverse leakage current versus junction
temperature.
IR(µA)
1E+4
VR=30V
1E+3
1E+2
1E+1
1E+0
1E-1
1E-2
0 25 50 75 100 125 150
Fig. 5:
Relative variation of thermal impedance
Tj(°C)
junction to ambient versus pulse duration (epoxy
FR4with recommendedpad layout, e(Cu)=35µm)
Zth(j-a)/Rth(j-a)
1.00
δ = 0.5
δ = 0.2
δ = 0.1
0.10
2
1
12 5102030
Fig. 6:
Thermal resistance junction to ambient
VR(V)
versus copper surface under each lead (Epoxy
printedcircuit boardFR4,copperthickness:35µm.)
Rth(j-a) (°C/W)
600
550
500
450
400
350
300
0 5 10 15 20 25 30 35 40 45 50
S(Cu) (mm )
P=0.2W
T
Single pulse
tp(s)
0.01
1E-3 1E-2 1E-1 1E+0 1E+1 1E+2
δ
=tp/T
tp
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BAT54J/ W / AW / CW / SW
PACKAGEMECHANICAL DATA
SOT-323
A
A1
L
H
θ
DIMENSIONS
REF.
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 0.8 1.1 0.031 0.043
D
A1 0.0 0.1 0.0 0.004
b 0.25 0.4 0.010 0.016
c 0.1 0.26 0.004 0.010
b
D 1.8 2.0 2.2 0.071 0.079 0.086
E 1.15 1.25 1.35 0.045 0.049 0.053
e 0.65 0.026
H 1.8 2.1 2.4 0.071 0.083 0.094
E
L 0.1 0.2 0.3 0.004 0.008 0.012
θ 030°030°
c
e
4/5
PACKAGEMECHANICAL DATA
SOD-323
BAT54J/ W / AW / CW / SW
H
b
A1
REF.
Millimeters Inches
DIMENSIONS
Min. Max. Min. Max.
E
A 1.17 0.046
A1 0 0.1 0 0.004
D
A
b 0.25 0.44 0.01 0.017
c 0.1 0.25 0.004 0.01
c
Q1
D 1.52 1.8 0.06 0.071
E 1.11 1.45 0.044 0.057
H 2.3 2.7 0.09 0.106
L
L 0.1 0.46 0.004 0.02
Q1 0.1 0.41 0.004 0.016
Orderingtype Marking Package Weight Base qty Deliverymode
BAT54W D73 SOT-323 0.006g 3000 Tape& reel
BAT54AW D74 SOT-323 0.006g 3000 Tape& reel
BAT54CW D77 SOT-323 0.006g 3000 Tape& reel
BAT54SW D78 SOT-323 0.006g 3000 Tape& reel
BAT54J 86 SOD-323 0.005g 3000 Tape& reel
Epoxymeets UL94,V0
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