Datasheet
44
Key Selector Switches
Solder/Tab Terminal
Package Quantity:1
Part No. /
Shape
Round
Square
Rectangular
➁ Operator Position ➄ Key Removable Position ➃ Contact
Part No.
Gold Contact Silver Contact
90°
2-position
Maintained
A: Key removable in all positions
L R
SPDT
LB➀K-2ST1A LB➀K-2ST5A
DPDT
LB➀K-2ST2A LB➀K-2ST6A
3PDT
LB➀K-2ST3A LB➀K-2ST7A
45°
3-position
Maintained
A: Key removable in all positions
L
C
R
DPDT
LB➀K-3ST2A LB➀K-3ST6A
3PDT
LB➀K-3ST3A LB➀K-3ST7A
•For operator position, see Part Number Development below.
•For key removable position, see Part Number Development below. The key cannot be removed at the return position.
•Two keys are supplied.
•Besides the standard key (key number 0H), six other keys are available.
•Disc tumbler keys also available. Only the standard key is available. To specify, see Part Number Development below.
•PC board terminals available for gold contacts. To specify, see Part Number Development below.
•For contact operation, see page 48.
LB
➀
K-
➁➂
T
➃➄
-
➅
LB
➀
K-
➁➂
T
➃➄
-
➅
LB Series Key Selector Switches
ø16
Part Number Development
➀ Shape
Code Shape
1 Round
2 Square
3 Rectangular
➁ Operator Position
Code Operator Position
2 90° 2-position maintained
21 90° 2-position spring return from right
3 45° 3-position maintained
31 45° 3-position spring return from right
32 45° 3-position spring return from left
33 45°-3-position spring return two-way
➂ Key Style
Code Key Style
S Wave key
Blank
Disc tumbler
key
➃ Contacts
Code Contact
1 Gold/SPDT (90° 2-position only)
2 Gold/DPDT
3 Gold/3PDT
5 Silver/SPDT (90° 2-position only)
6 Silver/DPDT
7 Silver/3PDT
➄ Key Removal Position
2-position
Key Removable Position
A: Key removable
in all positions
L R
B: Key removable
at left
L R
C: Key removable
at right
RL
Spring return from right
3-position
Key Removable Position
A: Key removable
in all positions
L
C
R
B: Key removable
at left / center
L
C
R
C: Key removable
at center / right
C
R
L
D: Key removable
at center
C
R
L
E: Key removable
at right / left
L
C
R
G: Key removable
at left
R
L
C
H: Key removable
at right
R
C
L
➅
Key Number
Code
Blank
Standard key (0H)
1H to 2H Reversible key
3H to 6H
Non-reversible key
•Wave key only.
Others
Code Specification Part No. Example
Blank Solder/Tab Terminal —
V
PC Board Terminal
(Gold Contact Only)
LB1K-2ST1VA
3-position
Spring return
from right
Spring return
from left
Spring return
two-way
C
R
L
C
R
L
C
L R
For key selectors with the following operations, the key cannot be removed at
the return position.
R
L
•Key is removable at
L
,
C
,
R
. Key is retained at
L
,
C
, and
R
.