ROTARY CODED SWITCHES
SA-5000
INTERNAL STRUCTURE
RoHS compliant
①
②
③
④
⑤
⑥
⑩
⑦
⑧
⑨
Flammability
Part name
Material
■
FEATURES
Rotor : Polyoxymethylene
Pattern : Copper alloy, Gold-plated
Insert rotor
①
ꢀ RoHS compliant
ꢀ Washable
UL94HB
ꢀ Easy pulling-up or pulling-off (A & B type)
ꢀ PC board space saving due to contained resistor/diode
ꢀ No need of cross pattern P.C.B. design
“O” ring
Contact holder
Contact
Silicone rubber
Polybutyleneterephthalate
Copper alloy, Gold-plated
Polybutyleneterephthalate
Copper alloy, Sn-Cu-plated
—
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
—
Base
UL94HB
Terminal pin
Diode
—
Resistor
Board
Chip resistor
Gold-plated epoxy board, Gold-plated
Polybutyleneterephthalate
Housing
UL94HB
The “SA-5000 Series” are divided into 3 types
according to the kind of a built-in circuit.
ꢀꢁA type: Built-in resistors (Housing color Yellow)
ꢀꢁC and D type: Built-in diodes (Housing color Black)
In order to use conventional code switches in a digital circuit, pull-
up or pull-down resistors must be connected externally. This type
contains these resistors.
When using more than one code switch arranged as a code of
plural figures, the digital circuit makes a comparison of signals
received through a line called a common bus line as its own
method. For this, it is necessary to connect a diode for preventing
reverse current to the middle of output terminal of each switch and
a bus line. The product is a hybrid switch integrating such a diode.
Diodes of C and D types are set in a reverse direction.
ꢀꢁB type: Pulling-up resistors and built-in diodes
(Housing color Red)