Basic / Snap Action Switches

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Type	Contact Form	Switch Function	Actuator	Current Rating	Voltage Rating AC	Voltage Rating DC	Operating Force	Termination Style	Mounting Style
Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 High Current B3-42141 OTTO 1: $23.24 411In Stock 1,000Expected 23/09/2026	Mfr. Part No. B3-42141 Mouser Part No 999-B3-42141	OTTO	Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 High Current Learn More about OTTO OTTOB3	Datasheet	411In Stock 1,000Expected 23/09/2026	$23.24 $19.58 $17.91 $17.12 View $15.70 $15.29	Min.: 1 Mult.: 1	B3	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 High Current MIL B3-11131 OTTO 1: $35.69 30In Stock	Mfr. Part No. B3-11131 Mouser Part No 999-B3-11131	OTTO	Basic / Snap Action Switches 8A SPDT PC Pins High Current MIL Learn More about OTTO OTTOB3	Datasheet	30In Stock	$35.69 $26.77 $24.54 $21.73 View $19.89 $19.27 Quote	Min.: 1 Mult.: 1	B3	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 B3-12321 OTTO 1: $41.10 15In Stock	Mfr. Part No. B3-12321 Mouser Part No 999-B3-12321	OTTO	Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 High Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$41.10 $30.84 $26.30 $24.88 View $22.91 $22.19 Quote	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPST-NC		Button	8 A	115 VAC	28 VDC	6 oz	Solder Turret	Chassis Mount
Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 Low Current MIL B3-12342 OTTO 1: $40.56 10In Stock	Mfr. Part No. B3-12342 Mouser Part No 999-B3-12342	OTTO	Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 Low Current MIL Learn More about OTTO OTTOB3	Datasheet	10In Stock	$40.56 $35.49 $30.56 $28.90 View $26.84 $26.00 Quote	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPDT		Button	8 A	115 VAC	28 VDC	6 oz	Solder Turret	Chassis Mount
Basic / Snap Action Switches 8A SPDT-DB Turret 3/16 Low Current MIL B3-13142 OTTO 1: $44.87 15In Stock	Mfr. Part No. B3-13142 Mouser Part No 999-B3-13142	OTTO	Basic / Snap Action Switches 8A SPDT-DB Turret 3/16 Low Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$44.87 $33.66 $28.70 $27.17 View $25.01 $24.23 Quote	Min.: 1 Mult.: 1	B3	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 SPDT Wire Wrap High Current MIL B3-14131 OTTO 1: $40.01 15In Stock	Mfr. Part No. B3-14131 Mouser Part No 999-B3-14131	OTTO	Basic / Snap Action Switches 8A SPDT Wire Wrap High Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$40.01 $30.02 $25.59 $24.22 View $22.30 $21.61 $21.60	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPDT		Button	8 A	115 VAC	28 VDC	3 oz, 8 oz		Chassis Mount
Basic / Snap Action Switches 8A SPDT Wire Wrap High Current MIL B3-14331 OTTO 1: $44.34 10In Stock	Mfr. Part No. B3-14331 Mouser Part No 999-B3-14331	OTTO	Basic / Snap Action Switches 8A SPDT Wire Wrap High Current MIL Learn More about OTTO OTTOB3	Datasheet	10In Stock	$44.34 $33.26 $28.36 $26.84 View $24.71 $23.94 Quote	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPDT		Button	8 A	115 VAC	28 VDC	6 oz		Chassis Mount
Basic / Snap Action Switches 8A SPNO-DB Turret 1/8 High Current MIL B3-22311 OTTO 1: $36.12 15In Stock	Mfr. Part No. B3-22311 Mouser Part No 999-B3-22311	OTTO	Basic / Snap Action Switches 8A SPNO-DB Turret 1/8 High Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$36.12 $27.10 $23.10 $21.99 View $20.14 $19.50	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPST-NO		Button	8 A	115 VAC	28 VDC	6 oz	Solder Turret	Chassis Mount
Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 High Current MIL B3-22341 OTTO 1: $35.03 5In Stock	Mfr. Part No. B3-22341 Mouser Part No 999-B3-22341	OTTO	Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 High Current MIL Learn More about OTTO OTTOB3	Datasheet	5In Stock	$35.03 $26.28 $22.41 $21.33 View $19.53 $18.91	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPDT		Button	8 A	115 VAC	28 VDC	6 oz	Solder Turret	Chassis Mount
Basic / Snap Action Switches 8A SPDT Wire Wrap Low Current MIL B3-24132 OTTO 1: $43.68 5In Stock	Mfr. Part No. B3-24132 Mouser Part No 999-B3-24132	OTTO	Basic / Snap Action Switches 8A SPDT Wire Wrap Low Current MIL Learn More about OTTO OTTOB3	Datasheet	5In Stock	$43.68 $32.77 $27.94 $26.45 View $24.34 $23.59 $23.58 Quote	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPDT		Button	8 A	115 VAC	28 VDC	3 oz, 8 oz		Chassis Mount
Basic / Snap Action Switches 8A SPDT-DB PC Pins High Current B3-41141 OTTO 1: $28.54 20In Stock	Mfr. Part No. B3-41141 Mouser Part No 999-B3-41141	OTTO	Basic / Snap Action Switches 8A SPDT-DB PC Pins High Current Learn More about OTTO OTTOB3	Datasheet	20In Stock	$28.54 $21.41 $18.26 $17.38 View $15.91 $15.41 $15.08	Min.: 1 Mult.: 1	B3	Commercial Grade Subminiature	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 Low Current MIL B3-12322 OTTO 1: $41.47 10In Stock	Mfr. Part No. B3-12322 Mouser Part No 999-B3-12322	OTTO	Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 Low Current MIL Learn More about OTTO OTTOB3	Datasheet	10In Stock	$41.47 $36.29 $31.25 $29.55 View $27.44 $26.58 Quote	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPST-NC		Button	8 A	115 VAC	28 VDC	6 oz	Solder Turret	Chassis Mount
Basic / Snap Action Switches 8A SPNO-DB Wire Wrap High Current MIL B3-14211 OTTO 1: $43.27 15In Stock	Mfr. Part No. B3-14211 Mouser Part No 999-B3-14211	OTTO	Basic / Snap Action Switches 8A SPNO-DB Wire Wrap High Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$43.27 $32.46 $27.67 $26.19 View $24.12 $23.36 Quote	Min.: 1 Mult.: 1	B3	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 Pins HighCurrent MIL B3-15141 OTTO 1: $42.18 24In Stock	Mfr. Part No. B3-15141 Mouser Part No 999-B3-15141	OTTO	Basic / Snap Action Switches 8A SPDT-DB RA PC Pins HighCurrent MIL Learn More about OTTO OTTOB3	Datasheet	24In Stock	$42.18 $31.64 $25.85 $24.58 View $22.41 $21.76 $21.75 Quote	Min.: 1 Mult.: 1	B3	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-DB RA PC Pins Low Current MIL B3-15142 OTTO 1: $42.37 15In Stock	Mfr. Part No. B3-15142 Mouser Part No 999-B3-15142	OTTO	Basic / Snap Action Switches 8A SPDT-DB RA PC Pins Low Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$42.37 $37.07 $31.92 $30.18 View $28.03 $27.16 Quote	Min.: 1 Mult.: 1	B3	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 SPNO-DB RA PC Pins Low Current MIL B3-15212 OTTO 1: $45.08 10In Stock	Mfr. Part No. B3-15212 Mouser Part No 999-B3-15212	OTTO	Basic / Snap Action Switches 8A SPNO-DB RA PC Pins Low Current MIL Learn More about OTTO OTTOB3	Datasheet	10In Stock	$45.08 $39.45 $33.56 $31.57 View $29.84 $28.89 Quote	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPST-NO		Button	8 A	115 VAC	28 VDC	5 oz	Solder Pin, Right Angle	PCB Mount
Basic / Snap Action Switches 8A SPNO-DB Turret 1/8 High Current MIL B3-22111 OTTO 1: $31.80 20In Stock	Mfr. Part No. B3-22111 Mouser Part No 999-B3-22111	OTTO	Basic / Snap Action Switches 8A SPNO-DB Turret 1/8 High Current MIL Learn More about OTTO OTTOB3	Datasheet	20In Stock	$31.80 $23.85 $20.33 $19.36 View $17.72 $17.17 $17.16	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPST-NO		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 High Current MIL B3-22121 OTTO 1: $31.80 20In Stock	Mfr. Part No. B3-22121 Mouser Part No 999-B3-22121	OTTO	Basic / Snap Action Switches 8A SPNC-DB Turret 1/8 High Current MIL Learn More about OTTO OTTOB3	Datasheet	20In Stock	$31.80 $23.85 $20.33 $19.36 View $17.72 $17.17 $17.16	Min.: 1 Mult.: 1	B3	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 High Current MIL B3-22231 OTTO 1: $32.87 15In Stock	Mfr. Part No. B3-22231 Mouser Part No 999-B3-22231	OTTO	Basic / Snap Action Switches 8A SPDT Turret 1/8 High Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$32.87 $24.66 $21.02 $20.02 View $18.32 $17.75 $17.74 Quote	Min.: 1 Mult.: 1	B3	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 B3-22242 OTTO 1: $41.52 15In Stock	Mfr. Part No. B3-22242 Mouser Part No 999-B3-22242	OTTO	Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 Low Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$41.52 $31.15 $26.55 $25.14 View $23.14 $22.42 $22.41 Quote	Min.: 1 Mult.: 1	B3	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 B3-22342 OTTO 1: $43.68 15In Stock	Mfr. Part No. B3-22342 Mouser Part No 999-B3-22342	OTTO	Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 Low Current MIL Learn More about OTTO OTTOB3	Datasheet	15In Stock	$43.68 $32.77 $27.94 $26.45 View $24.34 $23.59 $23.58 Quote	Min.: 1 Mult.: 1	B3	Military Grade Subminiature Basic Switch	SPDT		Button	8 A	115 VAC	28 VDC	6 oz	Solder Turret	Chassis Mount
Basic / Snap Action Switches 8A SPDT PC Pins High Current MIL B3-31131 OTTO 1: $30.07 11In Stock	Mfr. Part No. B3-31131 Mouser Part No 999-B3-31131	OTTO	Basic / Snap Action Switches 8A SPDT PC Pins High Current MIL Learn More about OTTO OTTOB3	Datasheet	11In Stock	$30.07 $22.55 $19.23 $18.31 View $16.76 $16.23 $15.88 Quote	Min.: 1 Mult.: 1	B3	Subminiature	SPDT	ON - (OFF), OFF - (ON)	Button	8 A	115 VAC	28 VDC	141 gf, 170 gf	Solder Pin	PCB Mount
Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 Low Current B3-32342 OTTO 1: $43.04 15In Stock	Mfr. Part No. B3-32342 Mouser Part No 999-B3-32342	OTTO	Basic / Snap Action Switches 8A SPDT-DB Turret 1/8 Low Current Learn More about OTTO OTTOB3	Datasheet	15In Stock	$43.04 $32.29 $26.38 $25.09 View $22.87 $22.21 $22.20 Quote	Min.: 1 Mult.: 1	B3	Commercial Grade Subminiature	SPDT		Button	8 A	115 VAC	28 VDC	6 oz	Solder Turret	Chassis Mount
Basic / Snap Action Switches 8A SPNO-DB Turret 1/8 High Current B3-42211 OTTO 1: $31.80 15In Stock	Mfr. Part No. B3-42211 Mouser Part No 999-B3-42211	OTTO	Basic / Snap Action Switches 8A SPNO-DB Turret 1/8 High Current Learn More about OTTO OTTOB3	Datasheet	15In Stock	$31.80 $23.85 $20.33 $19.36 View $17.72 $17.17 $17.16	Min.: 1 Mult.: 1	B3	Commercial Grade Subminiature	SPST-NO		Button	8 A	115 VAC	28 VDC	5 oz	Solder Turret	Chassis Mount
Basic / Snap Action Switches 8A SPDT-DB Wire Wrap High Current B3-44141 OTTO 1: $32.87 20In Stock	Mfr. Part No. B3-44141 Mouser Part No 999-B3-44141	OTTO	Basic / Snap Action Switches 8A SPDT-DB Wire Wrap High Current Learn More about OTTO OTTOB3	Datasheet	20In Stock	$32.87 $24.66 $21.02 $20.02 View $18.32 $17.75 $17.74 Quote	Min.: 1 Mult.: 1	B3	Commercial Grade Subminiature	SPDT		Button	8 A	115 VAC	28 VDC	3 oz, 8 oz		Chassis Mount

B3 Basic Subminiature Snap-Action Switches

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