BAT42 and BAT43
Small-Signal Diode
Schottky Diodes
Features
For general purpose applications.
These diodes feature very low turn-on voltage and fast
switching. These devices are protected by a PN junction guard
ring against excessive voltage, such as electrostatic dis-
charges
This diode is also available in the MiniMELF case with type
designation LL42 to LL43.
Mechanical Data
Case: DO-35 Glass Case
Weight: approx. 0.13g
Maximum Ratings and Thermal Characteristics
(Ratings at 25
o
C ambient temperature unless otherwise specified.)
Parameter
Repetitive peak reverse voltage
Forward continuous current at T
amb
=25
o
C
Repetitive peak forward Current
at tp<1s,
δ<
0.5, T
amb
=25
o
C
Surge forward current at t
p
<10ms, T
amb
=25
o
C
Power dissipation
(1)
at T
amb
=65
o
C
Thermal resistance junction to ambient air
Junction temperature
Ambient operating temperature range
Storage temperature range
Symbol
V
RRM
I
F
I
FRM
I
FSM
P
tot
R
θ
JA
T
j
T
amb
T
S
Value
30
200
500
4
(1)
Unit
Volts
mA
mA
Amps
mW
o
(1)
(1)
200
300
(1)
(1)
C/W
o
125
-65 to +125
-65 to +150
C
C
C
o
o
Electrical Characteristics
(T
J
=25
o
C unless otherwise noted.)
Parameter
Reverse breakdown voltage
Leakage current
pulse test t
p
<300
u
s,
δ
<2%
Forward voltage
pulse test t
p
<300
u
s,
δ
<2%
BAT42, 43
BAT42
BAT43
BAT43
BAT43
Symbol
V
(BR)R
I
R
Test Condition
I
R
=100
u
A (pulsed)
V
R
=25V
V
R
=25V, T
j
=100
O
C
I
F
=200mA
I
F
=10mA
I
F
=50mA
I
F
=2mA
I
F
=15mA
V
R
=1V, f=1MHz
I
F
=10mA, I
R
=10mA,
I
rr
=1mA, R
L
=100
Ω
R
L
=15K
Ω
, C
L
=300pF
f=45MHz, V
RF
=2V
Min.
30
-
-
-
-
-
0.26
-
-
-
80
Typ.
-
-
-
-
-
-
-
-
7
-
-
Max.
-
0.5
100
1.0
0.40
0.65
0.33
0.45
-
5
-
Unit
Volts
uA
V
F
Volt
Capacitance
Reverse recovery time
Detection efficiency
Notes:
C
tot
t
rr
η
�½
pF
ns
%
1. Valid provided that leads at a distance of 4mm from case are kept at ambient temperature.
680
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