Basic / Snap Action Switches – Mouser United Kingdom

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B3 Basic Subminiature Snap-Action Switches

OTTO B3 Basic Subminiature Snap-Action Switches are SPDT, double-break, 2-circuit (Form Z), commercial and military-grade switches that meet all requirements of MIL-PRF-8805/76 (0.200" wide) or MIL-PRF-8805/101. The 0.156" thick components (MIL-PRF-8805/101) feature a minimum of one million mechanical cycles, contact resistance less than 25mΩ, and standard silver with gold contacts. For commercial applications, a variety of contact forms, special forces, and gold plate contacts are available. Most versions are also UL recognized and CSA certified.

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Part #

Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 High Current

B3-42141
OTTO
1: £21.91
415In Stock
1,000Expected 08/10/2026

Mfr. Part No.
B3-42141

Mouser Part No
999-B3-42141

OTTO

Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 High Current

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Datasheet

415In Stock

1,000Expected 08/10/2026

£21.91

£18.46

£16.88

£16.14

View

Min.: 1
Mult.: 1

Subminiature

SPDT

ON - (OFF), OFF - (ON)

Button

8 A

115 VAC

28 VDC

141 gf, 170 gf

Solder Turret

Chassis Mount

Basic / Snap Action Switches 8A SPDT PC Pins Low Current MIL

B3-11132
OTTO
1: £41.81
25In Stock

Mfr. Part No.
B3-11132

Mouser Part No
999-B3-11132

OTTO

Basic / Snap Action Switches 8A SPDT PC Pins Low Current MIL

Learn More

Datasheet

25In Stock

£41.81

£31.36

£28.75

£25.31

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Pin

PCB Mount

Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 High Current MIL

B3-12121
OTTO
1: £34.68
15In Stock

Mfr. Part No.
B3-12121

Mouser Part No
999-B3-12121

OTTO

Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 High Current MIL

Learn More

Datasheet

15In Stock

£34.68

£26.02

£22.18

£21.12

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPST-NC

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Turret

Chassis Mount

Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 Low Current MIL

B3-12122
OTTO
1: £42.83
15In Stock

Mfr. Part No.
B3-12122

Mouser Part No
999-B3-12122

OTTO

Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 Low Current MIL

Learn More

Datasheet

15In Stock

£42.83

£32.14

£27.39

£25.94

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPST-NC

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Turret

Chassis Mount

Basic / Snap Action Switches 8A SPDT Turret 1/8 Low Current MIL

B3-12232
OTTO
1: £43.84
7In Stock

Mfr. Part No.
B3-12232

Mouser Part No
999-B3-12232

OTTO

Basic / Snap Action Switches 8A SPDT Turret 1/8 Low Current MIL

Learn More

Datasheet

7In Stock

£43.84

£32.89

£28.04

£26.54

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

5 oz

Solder Turret

Chassis Mount

Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 Low Current MIL

B3-12242
OTTO
1: £43.84
10In Stock

Mfr. Part No.
B3-12242

Mouser Part No
999-B3-12242

OTTO

Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 Low Current MIL

Learn More

Datasheet

10In Stock

£43.84

£32.89

£28.04

£26.54

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

5 oz

Solder Turret

Chassis Mount

Basic / Snap Action Switches 8A SPDT-DB Turret 3/16 Low Current MIL

B3-13342
OTTO
1: £38.67
10In Stock

Mfr. Part No.
B3-13342

Mouser Part No
999-B3-13342

OTTO

Basic / Snap Action Switches 8A SPDT-DB Turret 3/16 Low Current MIL

Learn More

Datasheet

10In Stock

£38.67

£33.83

£29.13

£27.55

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

6 oz

Solder Turret

Chassis Mount

Basic / Snap Action Switches 8A SPNC-DB Wire Wrap High Current MIL

B3-14121
OTTO
1: £38.75
1In Stock

Mfr. Part No.
B3-14121

Mouser Part No
999-B3-14121

OTTO

Basic / Snap Action Switches 8A SPNC-DB Wire Wrap High Current MIL

Learn More

Datasheet

1In Stock

£38.75

£27.09

£24.79

£23.46

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPST-NC

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Chassis Mount

Basic / Snap Action Switches 8A SPDT-DB Wire Wrap High Current MIL

B3-14341
OTTO
1: £41.81
15In Stock

Mfr. Part No.
B3-14341

Mouser Part No
999-B3-14341

OTTO

Basic / Snap Action Switches 8A SPDT-DB Wire Wrap High Current MIL

Learn More

Datasheet

15In Stock

£41.81

£31.36

£26.74

£25.31

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

6 oz

Chassis Mount

Basic / Snap Action Switches 8A SPDT RA PC Pins HighCurrent MIL

B3-15231
OTTO
1: £41.81
10In Stock

Mfr. Part No.
B3-15231

Mouser Part No
999-B3-15231

OTTO

Basic / Snap Action Switches 8A SPDT RA PC Pins HighCurrent MIL

Learn More

Datasheet

10In Stock

£41.81

£31.36

£26.74

£25.31

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

5 oz

Solder Pin, Right Angle

PCB Mount

Basic / Snap Action Switches 8A SPDT-DB RA PC Pins HighCurrent MIL

B3-15241
OTTO
1: £35.59
25In Stock

Mfr. Part No.
B3-15241

Mouser Part No
999-B3-15241

OTTO

Basic / Snap Action Switches 8A SPDT-DB RA PC Pins HighCurrent MIL

Learn More

Datasheet

25In Stock

£35.59

£29.21

£26.74

£25.31

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

5 oz

Solder Pin, Right Angle

PCB Mount

Basic / Snap Action Switches 8A SPDT-DB PC Pins High Current MIL

B3-21141
OTTO
1: £28.95
19In Stock

Mfr. Part No.
B3-21141

Mouser Part No
999-B3-21141

OTTO

Basic / Snap Action Switches 8A SPDT-DB PC Pins High Current MIL

Learn More

Datasheet

19In Stock

£28.95

£21.71

£18.52

£17.63

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Pin

PCB Mount

Basic / Snap Action Switches 8A SPDT Turret 1/8 Low Current MIL

B3-22132
OTTO
1: £37.10
15In Stock

Mfr. Part No.
B3-22132

Mouser Part No
999-B3-22132

OTTO

Basic / Snap Action Switches 8A SPDT Turret 1/8 Low Current MIL

Learn More

Datasheet

15In Stock

£37.10

£27.83

£23.29

£22.09

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Turret

Chassis Mount

Basic / Snap Action Switches 8A SPNO-DB Wire Wrap High Current MIL

B3-24212
OTTO
1: £44.24
15In Stock

Mfr. Part No.
B3-24212

Mouser Part No
999-B3-24212

OTTO

Basic / Snap Action Switches 8A SPNO-DB Wire Wrap High Current MIL

Learn More

Datasheet

15In Stock

£44.24

£33.20

£28.30

£26.78

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPST-NO

Button

8 A

115 VAC

28 VDC

5 oz

Chassis Mount

Basic / Snap Action Switches 8A SPDT-DB RA PC Pin High Current MIL

B3-25141
OTTO
1: £35.07
20In Stock

Mfr. Part No.
B3-25141

Mouser Part No
999-B3-25141

OTTO

Basic / Snap Action Switches 8A SPDT-DB RA PC Pin High Current MIL

Learn More

Datasheet

20In Stock

£35.07

£26.30

£22.43

£21.35

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Pin, Right Angle

PCB Mount

Basic / Snap Action Switches 8A SPDT Turret 1/8 Low Current

B3-32132
OTTO
1: £36.51
7In Stock

Mfr. Part No.
B3-32132

Mouser Part No
999-B3-32132

OTTO

Basic / Snap Action Switches 8A SPDT Turret 1/8 Low Current

Learn More

Datasheet

7In Stock

£36.51

£27.38

£23.34

£22.10

View

Min.: 1
Mult.: 1

Commercial Grade Subminiature

SPDT

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Turret

Chassis Mount

Basic / Snap Action Switches 8A SPDT-DB RA PC High Current

B3-45141
OTTO
1: £33.03
15In Stock

Mfr. Part No.
B3-45141

Mouser Part No
999-B3-45141

OTTO

Basic / Snap Action Switches 8A SPDT-DB RA PC High Current

Learn More

Datasheet

15In Stock

£33.03

£24.78

£21.13

£20.11

View

Min.: 1
Mult.: 1

Commercial Grade Subminiature

SPDT

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Pin, Right Angle

PCB Mount

Basic / Snap Action Switches 8A SPDT-DB RA PC Low Current

B3-45142
OTTO
1: £41.18
15In Stock

Mfr. Part No.
B3-45142

Mouser Part No
999-B3-45142

OTTO

Basic / Snap Action Switches 8A SPDT-DB RA PC Low Current

Learn More

Datasheet

15In Stock

£41.18

£30.90

£26.35

£24.94

View

Min.: 1
Mult.: 1

Commercial Grade Subminiature

SPDT

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Pin, Right Angle

PCB Mount

Basic / Snap Action Switches 8A SPDT-DB Solder Low Current

B3-46142
OTTO
1: £35.57
1In Stock

Mfr. Part No.
B3-46142

Mouser Part No
999-B3-46142

OTTO

Basic / Snap Action Switches 8A SPDT-DB Solder Low Current

Learn More

Datasheet

1In Stock

£35.57

£24.85

£22.75

£21.67

View

Min.: 1
Mult.: 1

Subminiature

SPDT

ON - (OFF), OFF - (ON)

Button

8 A

115 VAC

28 VDC

141 gf, 170 gf

Solder Terminal

PCB Mount

Basic / Snap Action Switches 8A SPNO-DB PC PINS High Current

B3-11111
OTTO
1: £34.68
7In Stock

Mfr. Part No.
B3-11111

Mouser Part No
999-B3-11111

OTTO

Basic / Snap Action Switches 8A SPNO-DB PC PINS High Current

Learn More

Datasheet

7In Stock

£34.68

£24.23

£22.18

£21.12

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPST-NO

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Pin

PCB Mount

Basic / Snap Action Switches 8A SPDT-DB PC Pins Low Current MIL

B3-11142
OTTO
1: £41.81
15In Stock

Mfr. Part No.
B3-11142

Mouser Part No
999-B3-11142

OTTO

Basic / Snap Action Switches 8A SPDT-DB PC Pins Low Current MIL

Learn More

Datasheet

15In Stock

£41.81

£31.36

£26.74

£25.31

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

3 oz, 8 oz

Solder Pin

PCB Mount

Basic / Snap Action Switches 8A SPDT PC Pins High Current MIL

B3-11231
OTTO
1: £35.69
30In Stock

Mfr. Part No.
B3-11231

Mouser Part No
999-B3-11231

OTTO

Basic / Snap Action Switches 8A SPDT PC Pins High Current MIL

Learn More

Datasheet

30In Stock

£35.69

£26.77

£24.54

£21.73

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

5 oz

Solder Pin

PCB Mount

Basic / Snap Action Switches 8A SPDT-DB PC Pins High Current MIL

B3-11341
OTTO
1: £37.72
20In Stock

Mfr. Part No.
B3-11341

Mouser Part No
999-B3-11341

OTTO

Basic / Snap Action Switches 8A SPDT-DB PC Pins High Current MIL

Learn More

Datasheet

20In Stock

£37.72

£28.30

£24.13

£22.84

View

Min.: 1
Mult.: 1

Military Grade Subminiature Basic Switch

SPDT

Button

8 A

115 VAC

28 VDC

6 oz

Solder Pin

PCB Mount

Basic / Snap Action Switches Subminiature Basic Switch

B3-12212
OTTO
1: £44.87
16In Stock

Mfr. Part No.
B3-12212

Mouser Part No
999-B3-12212

OTTO

Basic / Snap Action Switches Subminiature Basic Switch

Learn More

Datasheet

16In Stock

£44.87

£31.36

£28.71

£27.18

View

Min.: 1
Mult.: 1

Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 Low Current MIL

B3-12222
OTTO
1: £44.87
12In Stock

Mfr. Part No.
B3-12222

Mouser Part No
999-B3-12222

OTTO

Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 Low Current MIL

Learn More

Datasheet

12In Stock

£44.87

£33.66

£28.71

£27.18

View

Min.: 1
Mult.: 1

Subminiature

SPST-NC

ON - (OFF)

Button

8 A

115 VAC

28 VDC

141 gf, 170 gf

Solder Turret

Chassis Mount

B3 Basic Subminiature Snap-Action Switches

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