Datasheet

2
B3SNB3SN
■ Model Structure
■ Dimensions
Note: The numbers used for terminals in the following graphics are indicated in the “Bottom View” diagram below. In this
diagram, the Switch is rotated so that the terminals are on the right and left-hand sides, and the OMRON logo appears
the right way up.
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. No terminal numbers are indicated on the Switches.
■ Precautions
Be sure to read the safety precautions common to all Tactile Switches on pages for correct use.
Film
Pushbutton
Cover
Terminals
Plunger
Contact dome
Fixed contact
Base
(Bottom View)
2
4
1
3
Without Ground Terminal
B3SN-3012
B3SN-3012P
B3SN-3012-G
With Ground Terminal
B3SN-3112
B3SN-3112P
PCB Pad
(Top View)
Terminal Arrangement
/Internal Connections
(Top View)
PCB Pad
(Top View)
Terminal Arrangement
/Internal Connections
(Top View)
4±0.2
3 dia.
2
6
7
±0.5
4
9.5
(4.6)
6.5
0.7
0.11.2
6
3.1
+0.3
0
2.6 5.4
4
2
3
1
4
±0.2
3.4±0.2
3 dia.
2
7
±0.5
4
9.5
(4.6)
6.5
0.70.7
0.11.2
6
3.1
+0.3
0
2.61.4 5.4
4
2
3
5
1
6