2

B3S

B3S

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.

Be sure to read the safety precautions common to all Tactile Switches for correct use.

Cover

Plunger

Contact dome

Fixed contact

Base

Spacer

Sealing rubber

(Bottom View)

2

4

1

3

Without Ground Terminal

B3S-1000

B3S-1002

With Ground Terminal

B3S-1100

B3S-1102

PCB Pad

(Top View)

Terminal Arrangement

/Internal Connections

(Top View)

PCB Pad

(Top View)

Terminal Arrangement

/Internal Connections

(Top View)

9

4.5

3.3

dia.

0.7

6

6.4

9.5

6.6

1.3

4.5

4

2

3

1

4.3

0.1

3.4

0.7

0.7

1.5

9

4.5

3.3

dia.

0.7

6

6.4

9.5

6.6

1.3

1.3

3.25

4.95

4.5

4

2

3

1

4.3

0.1

3.4

0.7

0.7

0.7

5