Engineering Data

Operating Force vs. Stroke (Typical)

B3F-1

jjj, -3jjj

B3F-4

jjj, -5jjj, -9jjj

Forward Current Derating

Curve

Note:

To determine illuminated current of

surface illumination types

(B3F-9

jjj), refer to the above for-

ward current derating curve.

Stroke S (mm)

Stroke S (mm)

Ambient temperature (

°C)

OF: 100 gf

OF: 260 gf

OF: 130 gf

OF: 150 gf

Dimensions

Note:

1. Unless otherwise stated, a tolerance of

± 0.4mm applies to all dimensions

2. No terminal numbers appear on the switches. To orient a switch in the “bottom view” position, turn it so that the terminals are on

the up and down sides and the word OMRON is right-side up.

(Bottom view)

6 x 6 mm Models

Standard, Flat Plunger Type

(without Ground Terminal)

B3F-1000, -1002, -1005,

-1020**, -1022**, -1025**

PCB Mounting

(Top View)

Standard, Flat Plunger Type

(with Ground Terminal, Pitch: 6.5 mm)

B3F-1100, -1102, -1105,

-1120**, -1122**, -1125**

Terminal Arrangement

/Internal Connections

(Top View)

**Height of B3F-1020, -1022, -1025 is 5

±0.2 mm.

**Height of B3F-1120, -1122, -1125 is 5

±0.2 mm.

4.5

±0.2

6

±0.2

4.3

±0.2**

0.3

3.5 dia

0.7

0.7

4.5

±0.2

6

±0.2

1.5

4.3

±0.2**

0.3

3.5 dia

0.7

0.7

4.5

±0.1

6.5

±0.1

Four 1

±0.05 dia

4.5

±0.1

6.5

±0.1

Five

1

±0.05

dia

4.1

±0.1

PCB Mounting

(Top View)

Terminal Arrangement

/Internal Connections

(Top View)

6

±0.2

6.5

±0.5

7.7

±0.5

4

3

21

4

3

21

5

6

±0.2

6.5

±0.5

7.7

±0.5

3.4

3.5

3.4

3.5

Standard, Projected Plunger Type

(without Ground Terminal)

B3F-1050, -1052, -1055

4.5

±0.2

6

±0.2

4.3

±0.2

0.3

7.3

±0.2

3.5 dia

0.7

0.7

j2.4±0.1

4.5

±0.1

6.5

±0.1

Four 1

±0.05 dia

PCB Mounting

(Top View)

Terminal Arrangement

/Internal Connections

(Top View)

4

3

21

6

±0.2

6.5

±0.5

1.8

±0.1

3.4

3.5

7.7

±0.5

Standard, Projected Plunger Type

(with Ground Terminal)

B3F-1150, -1152, -1155

1.5

4.5

±0.2

6

±0.2

4.3

±0.2

7.3

±0.2

j2.4±0.1

0.3

3.5 dia

0.7

0.7

4.5

±0.1

6.5

±0.1

Five

1

±0.0

5 dia

4.1

±0.1

PCB Mounting

(Top View)

Terminal Arrangement

/Internal Connections

(Top View)

6

±0.2

6.5

±0.5

7.7

±0.5

1.8

±0.1

4

3

21

5

3.4

3.5