Zowie Technology Corporation
SCHOTTKY BARRIER
Schottky Barrier Diode
These Schottky barrier diodes are designed for high speed switching applications, circuit protection,
and voltage clamping. Extremely low forward voltage reduces conduction loss. Miniature surface mount
package is excellent for hand held and portable applications where space is limited.
* Extremely Fast Switching Speed
* Low Forward Voltage-0.35 Volts (Typ) @ IF=10mAdc
3
ANODE CATHODE
BAT54S
1
2
SOT-23
DETECTOR AND SWITCHING
1
CATHODE/ANODE
30 VOLT
DIODE
2
3
MAXIMUM RATINGS (TJ=125oC unless otherwise noted)
Rating Symbol
Reverse Voltage
Forward Power Dissipation @ TA=25oC
Derate above 25oC
Operating Junction Temperature Range
Storage Temperature Range
VR 30 Volts
PF
TJ -55 to +125
TSTG -55 to +150
DEVICE MARKING
BAT54S=LD3
ELECTRICAL CHARACTERISTICS (TA=25oC unless otherwise noted)
Characteristic Symbol Min. Max.Typ. Unit
OFF CHARACTERISTICS
Reverse Breakdown Voltage
( IR=10 uAdc )
Forward Voltage
( IF=0.1 mAdc )
( IF=1.0 mAdc )
( IF=10 mAdc )
( IF=30 mAdc )
( IF=100 mAdc )
V(BR) 30 -- Volts
VF
Value Unit
225
1.8
-
-
-
-
-
0.22
0.29
0.35
0.41
0.52
mW
mW / oC
o
C
o
C
0.24
0.32
0.40
0.50
1.0
Vdc
Diode Capacitance
( VR=1.0, f=1.0MHZ )
Reverse Recovery Time
( IF=IR=10 mAdc, IR(REC)=1.0mAdc )
REV. : 0
IR - 2.0 uAdcReverse Leakage ( VR=25 Vdc )
CJ -
trr - 5.0
0.5
7.6
10 pF
- nS
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Zowie Technology Corporation
FIGURE 1. RECOVERY TIME EQUIVALENT TEST CIRCUIT
820
+10 V
0.1uF
2 k
100uH
IF
0.1uF
BAT54S
I
t
t
r
T
p
10%
F
t
rr
T
50 OUTPUT
GENERATOR
100
10
1.0
IF, FORWARD CURRENT ( mA )
0.1
0.0 0.1
PULSE
D.U.T.
50 INPUT
SAMPLING
OSCILLOSCOPE
V
R
90%
I
R
INPUT SIGNAL
Notes:1. A 2.0k variable resistor adjusted for a Forward Current (IF) of 10mA.
2. Input pulse is adjusted so I
3. tp » t
rr
R(peak)
is equal to 10mA.
FIGURE 2. FORWARD VOLTAGE FIGURE 3. LEAKAGE CURRENT
125oC
85oC
o
C
150
C
o
25
0.2 0.3 0.4
C
o
-40
VF, FORWARD VOLTAGE ( VOLTS )
-55oC
0.5
0.6
1000
, REVERSE CURRENT ( uA )
0.01
R
I
0.001
100
10
1.0
0.1
0 5
o
C
=150
T
A
1510
VR, REVERSE VOLTAGE ( VOLTS )
i
= 1mA
R(REC)
OUTPUT PULSE
(I
= IR = 10 mA; measured
F
at i
20
R(REC)
T
= 1mA
=125
A
=85
T
A
T
A
o
=25
25
o
C
C
o
C
30
REV. : 0
14
12
10
8
6
4
, TOATAL CAPACITANCE ( pF )
T
2
C
0
0 5
FIGURE 4. TOTAL CAPACITANCE
1510 30
VR, REVERSE VOLTAGE ( VOLTS )
2520
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