RSB18F2
Diodes
Bi-Directional Zener Diodes
RSB18F2
Dimensions (Unit : mm)
Outline
RSB18F2 is a bi-directional zener diode having two
zeners confronted in one package, aimed to absorb the
surge in plus and minus directions arising from the signal
line in mobile phone, consumer electronics such as PC,
and automotive applications.
In general, two pieces of zener diodes are used as ESD
protector to absorb the surge in +/ - directions. Paying
attention to this point and using its original technology,
ROHM succeeded to incorporate 2 zeners in one die /
package for benefit of space-saving on the circuit board.
0.15±0.05
0.1Min.
0.3±0.1
2.1±0.1
1.25±0.1
(3)
7N
(2)
0~0.1
(1)
0.65 0.65
0.6 0.3
1.3±0.1
2.0±0.2
Features
1) Absorption of plus & minus surge with one package.
2) Decrease of components and space-saving on the
circuit board.
0.9±0.1
Structure
(3)
(2)
(1)
Absolute maximum ratings (Ta=25°C)
Parameter
Power dissipation (*1)
Junction temperature
Operation temperature range
Symbol
Pd
Tj
Tstg
Limits
200
150
-55 to +150
Unit
mW
℃
℃
(*1) Total of 2 elements
Electrical characteristics (Ta=25°C) (Rating of per diode)
Parameter
Zener voltage
Reverese current
Capacitance between terminals
Symbol
Vz
Min.
16.2
Max.
19.8
Unit
V
IR
-
0.1
µA
Ct
-
30
pF
Conditions
IF=1mA
VR=13V
VR=0V , f=1MHz
∗ Zener voltage to be measured at 40ms after current starting to apply.
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