248

Tactile Switch (SMD)

B3FS

Engineering Data

■ Operating Characteristics

■ Accessories

See “B32” Tactile Switch Key Top data sheet for keycaps that fit

projected plunger B3FS models.

■ Operating Force vs Stroke

(Typical Example)

Dimensions

Note: 1. Unless otherwise specified, all units are in millimeters and a tolerance of

± 0.4 mm applies to all dimensions.

2. Terminal numbers are not indicated on this switch. With the switch turned over so that the logo mark “OMRON” is visible on the upper

part of the rear side of the switch base, the terminal on the right of the logo mark is numbered “1” and that on the bottom right is “3.”

Accordingly, two terminals on the left side are numbered “2” and “4” respectively.

Precautions

Be sure to read the precautions common to all Tactile Switches, contained in the Technical User’s Guide, “Tactile Switches, Technical Information” for correct use.

Characteristics

B3FS-1000 series

General-purpose

High-force

Operating force (OF)

100

± 30 gf

150

± 50 gf

Releasing force (RF)

20 gf

50 gf

Pretravel (PT)

Stroke S (mm)

High-force type

General-purpose type

PCB Pad

(Top View)

(One-side PCB t= 1.6)

Terminal Arrangement/

Internal Connection

(Top View)

4.5

3 dia.

8

0.7

0.7

6.3

3.1

9.6

6.4

3.1

5.9

3

1

4

2

4.5

3 dia.

8

0.7

0.7

6.3

4.3

2.6

9.6

6.4

3.1

5.9

3

1

4

2

4.5

6

8

2.4

0.7

0.7

6.3

3.1

1.8

7.3

2.6

9.6

6.4

3.1

5.9

3

1

4

2

Flat Type

B3FS-1000

B3FS-1002

B3FS-1000P

B3FS-1002P

PCB Pad

(Top View)

(One-side PCB t= 1.6)

Terminal Arrangement/

Internal Connection

(Top View)

PCB Pad

(Top View)

(One-side PCB t= 1.6)

Terminal Arrangement/

Internal Connection

(Top View)

Flat Type

B3FS-1010

B3FS-1012

B3FS-1010P

B3FS-1012P

Projected Type

B3FS-1050

B3FS-1052

B3FS-1050P

B3FS-1052P