ST BAT47, BAT48 User Manual
BAT47
®
BAT48
SMALL SIGNAL SCHOTTKY DIODE
DESCRIPTION
General purpose, metal to silicondiodes featuring
very low turn-on voltage and fast switching.These
devices have integrated protection against excessive voltage such as electrostatic discharges.
ABSOLUTE RATINGS (limiting values)
Symbol Parameter BAT47 BAT48 Unit
V
RRM
I
F
I
FRM
I
FSM
P
tot
T
stg
T
j
T
L
Repetitive Peak Reverse Voltage 20 40 V
Forward Continuous Current* Ta= 25°C 350 mA
Repetitive Peak Fordward Current* tp≤ 1s
Surge non Repetitive Forward Current* tp= 10ms 7.5 A
Power Dissipation* Ta= 25°C 330 mW
Storage and Junction Temperature Range - 65 to + 150
Maximum Temperature for Soldering during 10s at 4mm from
Case
δ ≤ 0.5
= 1s 1.5
t
p
DO-35
1A
- 65 to + 125
230
°C
°C
°C
THERMAL RESISTANCE
Symbol Test Conditions Value Unit
R
th(j-l)
* On infinite heatsink with 4mm lead length
October 2001 - Ed: 1B
Junction-ambient* 300 °C/W
1/5
BAT47 / BAT48
ELECTRICAL CHARACTERISTICS
STATIC CHARACTERISTICS
Symbol Test Conditions Min. Typ. Max. Unit
V
(BR)
*T
V
F
IR= 10µA
I
R
T
T
T
T
T
T
T
T
*T
I
R
T
T
T
T
T
T
T
T
T
T
T
= 25µA
= 25°C IF= 0.1mA All Types 0.25 V
j
= 25°CIF= 1mA
j
= 25°CIF= 10mA
j
= 25°CIF= 30mA
j
= 25°CIF= 150mA
j
= 25°CIF= 300mA
j
= 25°CIF= 50mA
j
= 25°CIF= 200mA
j
= 25°CIF= 500mA
j
= 25°C VR= 1.5V
j
= 60°C
j
= 10V
= 25°C
j
= 60°C
j
= 25°C
j
= 60°C
j
= 25°C
j
= 60°C
j
= 25°C
j
= 60°C
j
= 25°C
j
= 60°C
j
V
V
V
V
V
R
= 20V
R
= 10V
R
= 20V
R
= 40V
R
BAT47 20 V
BAT48 40
0.3
0.4
BAT47 0.5
0.8
1
BAT48 0.5
0.75
0.9
All Types 1
10
BAT47 4
20
10
30
BAT48 2
15
5
25
25
50
µA
DYNAMIC CHARACTERISTICS
Symbol Test Conditions Min. Typ. Max. Unit
CT
* Pulse test: tp≤ 300µs δ<2%.
2/5
= 25°C VR= 0V f = 1MHz 20 pF
j
T
= 25°CVR= 1V
j
12
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