Motorola BAT54WT1 Datasheet
SEMICONDUCTOR TECHNICAL DATA
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by BAT54WT1/D
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
• Extremely Low Forward Voltage — 0.35 Volts (Typ) @ IF = 10 mAdc
3
CATHODE
MAXIMUM RATINGS
Reverse Voltage V
Forward Power Dissipation
@ TA = 25°C
Derate above 25°C
Forward Current (DC) I
Junction Temperature T
Storage Temperature Range T
(TJ = 125°C unless otherwise noted)
Rating
Symbol Value Unit
R
P
F
F
J
stg
DEVICE MARKING
BAT54WT1 = B4
ELECTRICAL CHARACTERISTICS (T
Characteristic Symbol Min Typ Max Unit
Reverse Breakdown Voltage (IR = 10 µA) V
Total Capacitance (VR = 1.0 V, f = 1.0 MHz) C
Reverse Leakage (VR = 25 V) I
Forward Voltage (IF = 0.1 mAdc) V
Forward Voltage (IF = 30 mAdc) V
Forward Voltage (IF = 100 mAdc) V
Reverse Recovery Time
(IF = IR = 10 mAdc, I
Forward Voltage (IF = 1.0 mAdc) V
Forward Voltage (IF = 10 mAdc) V
Forward Current (DC) I
Repetitive Peak Forward Current I
Non–Repetitive Peak Forward Current (t < 1.0 s) I
Thermal Clad is a registered trademark of the Bergquist Company.
Preferred devices are Motorola recommended choices for future use and best overall value.
REV 3
= 1.0 mAdc) Figure 1
R(REC)
= 25°C unless otherwise noted)
A
(BR)R
FRM
FSM
t
1
ANODE
T
R
F
F
F
rr
F
F
F
Motorola Preferred Device
30 VOLTS
SCHOTTKY BARRIER
DETECTOR AND SWITCHING
CASE 419–02, STYLE 2
30 Volts
200
1.6
200 Max mA
125 Max °C
–55 to +150 °C
30 — — Volts
— 7.6 10 pF
— 0.5 2.0 µAdc
— 0.22 0.24 Vdc
— 0.41 0.5 Vdc
— 0.52 1.0 Vdc
— — 5.0 ns
— 0.29 0.32 Vdc
— 0.35 0.40 Vdc
— — 200 mAdc
— — 300 mAdc
— — 600 mAdc
DIODE
3
1
2
SOT–323 (SC–70)
mW
mW/°C
Motorola Small–Signal Transistors, FETs and Diodes Device Data
Motorola, Inc. 1997
1
BAT54WT1
820
+10 V
Ω
0.1 µF
2 k
100
0.1
µ
I
F
µ
H
F
t
t
r
p
10%
t
I
F
t
rr
t
Ω
50
GENERATOR
100
10
125°C
1.0
, FORWARD CURRENT (mA)
F
I
0.1
0.0 0.1
OUTPUT
PULSE
DUT
50 Ω INPUT
SAMPLING
OSCILLOSCOPE
Notes: 1. A 2.0 kΩ variable resistor adjusted for a Forward Current (IF) of 10 mA.
Notes: 2. Input pulse is adjusted so I
Notes: 3. tp » t
rr
V
R(peak)
R
90%
INPUT SIGNAL
is equal to 10 mA.
I
R
(IF = IR = 10 mA; measured
Figure 1. Recovery Time Equivalent Test Circuit
1000
TA = 150°C
A)
100
µ
150°C
85°C
25°C
0.2 0.3 0.4
VF, FORWARD VOLTAGE (VOLTS)
–40°C
–55°C
0.5
0.6
, REVERSE CURRENT (
R
I
0.001
10
1.0
0.1
0.01
0
5101520
VR, REVERSE VOLTAGE (VOLTS)
Figure 2. Forward V oltage Figure 3. Leakage Current
i
= 1 mA
R(REC)
OUTPUT PULSE
at i
R(REC)
= 1 mA)
TA = 125°C
TA = 85°C
TA = 25°C
25
30
14
12
10
8
6
4
, TOTAL CAP ACITANCE (pF)
T
C
2
0
0
51015 30
VR, REVERSE VOLTAGE (VOLTS)
2520
Figure 4. T otal Capacitance
2
Motorola Small–Signal Transistors, FETs and Diodes Device Data
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