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
BAT47 / BAT48
Fig. 1:Forwardcurrentversus forward voltageat
different temperatures (typical values).
Fig. 2: Forward current versus forward voltage
(typical values).
Fig. 3: Reverse current versus junction temperature.
Fig. 4: Reverse current versuscontinuous reverse
voltage (typical values).
3/5
BAT47 / BAT48
Fig. 5: Capacitance C versus reverse applied
voltage V
(typical values).
R
PACKAGE MECHANICAL DATA
DO-35
BAT47 / BAT48
REF. DIMENSIONS
CA
O
/
D
C
O
/
D
/
Cooling method: by convection and conduction.
Marking: clear, ring at cathode end.
Weight: 0.015g
BO
Millimeters Inches
Min. Max. Min. Max.
A 3.05 4.50 0.120 0.177
B 1.53 2.00 0.060 0.079
C 28.00 1.102
D 0.458 0.558 0.018 0.022
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use of such information nor for anyinfringementofpatents or other rights of third partieswhichmay result from its use. No licenseisgranted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written
approval of STMicroelectronics.
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