Document
®
BAT54J / W / AW / CW / SW
SMALL SIGNAL SCHOTTKY DIODE
FEATURES AND BENEFITS VERY SMALL CONDUCTION LOSSES NEGLIGIBLE SWITCHING LOSSES LOW FORWARD VOLTAGE DROP SURFACE MOUNT DEVICE
DESCRIPTION Schottky barrier diodes encapsulated either in SOT-323 or SOD-323 small SMD packages. Single and double diodes with different pining are available.
NC
K
K
NC
A A
BAT54W
K2
A
K2
A
K1 K1
BAT54AW
A2
K
A2
K
A1 A1
BAT54CW
K2
A2
K1
A2
K2
K1
A1
A1
BAT54SW
SOT-323
A 86 K
BAT54J SOD-323
ABSOLUTE RATINGS (limiting values)
Symbol
Parameter
Value
VRRM Repetitive peak reverse voltage
30
IF Continuous forward current
0.3
IFSM Surge non repetitive forward current
tp=10ms sinusoidal
1
Ptot Power dissipation (note 1)
SOD-323
230
Tamb = 25°C
SOT-323
Tstg Maximum storage temperature range
- 65 to +150
Tj Maximum operating junction temperature *
150
TL Maximum temperaturefor soldering during 10s
260
Note 1: for double diodes, Ptot is the total dissipation of both diodes
*
:
dPtot dTj
<
1 Rth(j−a)
thermal runaway condition for a diode on its own heatsink
June 1999 - Ed: 2A
Unit V A A
mW
°C °C °C
1/5
BAT54J / W / AW / CW / SW
THERMAL RESISTANCE
Symbol
Parameters
Rth (j-a) Junction to ambient (*)
SOD-323
SOT-323
(*) Mounted on epoxy board, with recommended pad layout.
Value 550
Unit °C/W °C/W
STATIC ELECTRICAL CHARACTERISTICS (per diode)
Symbol
Parameters
Tests conditions
VF * Forward voltage drop
Tj = 25°C
IF = 0.1 mA
IF = 1 mA
IF = 10 mA
IF = 30 mA
IF = 100 mA
IR ** Reverse leakage current Tj = 25°C
VR = 30 V
Tj = 100°C
Pulse test : * tp = 380 µs, δ < 2% ** tp = 5 ms, δ < 2%
DYNAMIC CHARACTERISTICS (Tj = 25 °C)
Min. Typ. Max. 240 320 400 500 900 1 100
Unit mV
µA
Symbol Parameters
C Junction capacitance
trr
Reverse recovery
time
Tests conditions Tj = 25°C VR = 1 V F = 1 MHz
Min.
Typ. Max. Unit 10 pF
IF = 10 mA IR = 10 mA Tj = 25°C Irr = 1 mA RL = 100 Ω
5
ns
Fig. 1-1: Forward voltage drop versus forward current (typical values, low level).
Fig. 1-2: Forward voltage drop versus forward current (typical values, high level).
IFM(A)
2.00E-2 1.80E-2 1.60E-2 1.40E-2 1.20E-2 1.00E-2
Tj=100°C Tj=50°C
Tj=25°C
8.00E-3
6.00E-3 4.00E-3
2.00E-3
VFM(V)
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
IFM(A) 5E-1
1E-1
Tj=100°C
1E-2
Tj=50°C
Tj=25°C
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
2/5
Fig. 2: Reverse leakage current versus reverse voltage applied (typical values).
BAT54J / W / AW / CW / SW
Fig. 3: Reverse leakage current versus junction temperature.
IR(µA) 1E+2
1E+1
Tj=100°C
IR(µA) 1E+4
VR=30V
1E+3
1E+2
1E+0
Tj=50°C
1E+1
1E-1 1E-2
0
1E+0
Tj=25°C
1E-1
VR(V)
Tj(°C)
1E-2
5
10
15
20
25
30
0
25
50
75 100 125 150
Fig. 4: Junction capacitance versus reverse voltage applied (typical values).
Fig. 5: Relative variation of thermal impedance junction to ambient versus pulse duration (epoxy FR4 with recommended pad layout, e(Cu)=35µm)
C(pF) 10
5
2
1
1
2
VR(V)
5
10
F=1MHz Tj=25°C
20 30
Zth(j-a)/Rth(j-a) 1.00
δ = 0.5
0.10
δ = 0.2 δ = 0.1
Single pulse
0.01 1E-3
1E-2
T
tp(s) 1E-1 1E+0
δ=tp/T 1E+1
tp
1E+2
Fig. 6: Thermal resistance junction to ambient versus copper surface under each lead (Epoxy printedcircuit board FR4, copper thickness: 35µm.)
Rth(j-a) (°C/W) 600
550
P=0.2W
500
450
400
350 300
0
S(Cu) (mm ) 5 10 15 20 25 30 35 40 45 50
3/5
BAT54J / W / AW / CW / SW
PACKAGE MECHANICAL DATA SOT-323
A A1
L H
θ
c
D b
e
DIMENSIONS
REF. Millimeters
Inches
Min. Typ. Max. Min. Typ. Max.
A 0.8
1.1 0.031
0.043
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
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
θ0
30° 0
30°
4/5
PACKAGE MECHANICAL DATA SOD-323
H b
E
D
c
Q1
L
BAT54J / W / AW / CW / SW
DIMENSIONS
A1
REF. Millimeters
Inches
Min. Max. Min. Max.
A
1.17
0.046
A1
0
0.1
0 0.004
A
b
0.25 0.44 0.01 0.017
c
0.1 0.25 0.004 0.01
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
0.1 0.46 0.004 0.02
Q1
0.1 0.41 0.004 0.016
Ordering type Marking
BAT54W
D73
BAT54AW
D74
BAT54CW
D77
BAT54SW
D78
BAT54J
86
Epoxy meets UL94,V0
Package SOT-323 SOT-323 SOT-323 SOT-323 SOD-323
Weight 0.006g 0.006g 0.006g 0.006g 0.005g
Base qty 3000 3000 3000 3000 3000
Delivery mode Tape & reel Tape & reel Tape & reel Tape & reel Tape & reel
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