Tactile Switches – Mouser Taiwan

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B3U Tactile Switch

Industry's smallest ultra-small tactile switch with high contact reliability.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (TWD) Filter the results in the table by unit price based on your quantity.	Qty.	Illuminated	Mounting Style	Mounting Direction	Actuator	Switch Function	Operating Force	Current Rating	Voltage Rating DC	Ground Terminal	Contact Form	Termination Style	Color	Length	Width	Height	Series	Life	IP Rating	Packaging
Tactile Switches Top Actuated w/o boss w/o ground B3U-1000P Aratas 1: NT$40.15 54,443In Stock 126,000On Order	Mfr. Part # B3U-1000P Mouser Part # 653-B3U-1000P	Aratas	Tactile Switches Top Actuated w/o boss w/o ground	Datasheet	54,443In Stock 126,000On Order On Order Ship Dates Mfr. #: B3U-1000P Stock: 54,443 Can Ship Immediately On Order: 63,000 Expected 12/25/2026 63,000 Expected 3/19/2027 Factory Lead-Time: 4 Weeks	Cut Tape NT$40.15 NT$34.95 NT$30.80 NT$28.86 Reel NT$22.44 View NT$25.35 NT$24.31 NT$23.41 NT$21.40 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	Non-Illuminated	SMD/SMT	Straight	Round	OFF - (ON)	1.5 N	50 mA	12 VDC	No	SPST	Leadless	Black	2.5 mm	3 mm	1.2 mm	B3U	200000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Tactile,Top Actuated Gnd.Ter B3U-1100P Aratas 1: NT$38.00 31,847In Stock 91,000On Order	Mfr. Part # B3U-1100P Mouser Part # 653-B3U-1100P	Aratas	Tactile Switches Tactile,Top Actuated Gnd.Ter	Datasheet	31,847In Stock 91,000On Order On Order Ship Dates Mfr. #: B3U-1100P Stock: 31,847 Can Ship Immediately On Order: 35,000 Expected 1/8/2027 56,000 Expected 2/12/2027 Factory Lead-Time: 4 Weeks	Cut Tape NT$38.00 NT$33.52 NT$31.01 NT$29.22 Reel NT$21.58 View NT$26.74 NT$25.45 NT$24.31 NT$21.37 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	Non-Illuminated	SMD/SMT	Straight	Round	OFF - (ON)	1.5 N	50 mA	12 VDC	Yes	SPST	Leadless	Black	4 mm	2.5 mm	1.6 mm	B3U	200000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Top Act. w/out Boss w/out Ground Term B3U-1000PM Aratas 1: NT$45.17 9,480In Stock 10,000Expected 3/2/2027	Mfr. Part # B3U-1000PM Mouser Part # 653-B3U-1000PM	Aratas	Tactile Switches Top Act. w/out Boss w/out Ground Term	Datasheet	9,480In Stock 10,000Expected 3/2/2027	Cut Tape NT$45.17 NT$40.87 NT$32.70 NT$31.37 Reel NT$27.82 View NT$27.82 NT$25.67 NT$24.81 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Non-Illuminated	SMD/SMT	Straight	Round	OFF - (ON)	1.5 N	50 mA	12 VDC	Yes	SPST	Leadless	Black	4 mm	2.5 mm	1.6 mm	B3U	200000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Tactile SideActuated Ground Term NO Boss B3U-3100P Aratas 1: NT$33.34 8,276In Stock	Mfr. Part # B3U-3100P Mouser Part # 653-B3U-3100P	Aratas	Tactile Switches Tactile SideActuated Ground Term NO Boss	Datasheet	8,276In Stock	Cut Tape NT$33.34 NT$30.22 NT$29.72 NT$27.78 View Reel NT$22.19 NT$26.60 NT$25.96 NT$24.56 NT$24.23 NT$22.19	Min.: 1 Mult.: 1 : 4,000	Non-Illuminated	SMD/SMT	Right Angle	Rectangular	OFF - (ON)	1.6 N	50 mA	12 VDC	Yes	SPST	Solder Pin	Black	3 mm	1.2 mm	2.5 mm	B3U	100000 Cycle	IP40	Reel, Cut Tape
Tactile Switches Top Actuate w/Boss w/out Ground Term B3U-1000PM-B Aratas 1: NT$58.08 28In Stock 2,000On Order	Mfr. Part # B3U-1000PM-B Mouser Part # 653-B3U-1000PM-B	Aratas	Tactile Switches Top Actuate w/Boss w/out Ground Term	Datasheet	28In Stock 2,000On Order On Order Ship Dates Mfr. #: B3U-1000PM-B Stock: 28 Can Ship Immediately On Order: 1,000 Expected 12/11/2026 1,000 Expected 4/9/2027 Factory Lead-Time: 26 Weeks	Cut Tape NT$58.08 NT$51.27 NT$39.79 NT$36.93 Reel NT$29.83 View NT$34.27 NT$32.91 NT$29.79 NT$29.54 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Non-Illuminated	SMD/SMT	Straight	Round	OFF - (ON)	1.5 N	50 mA	12 VDC	Yes	SPST	Leadless	Black	4 mm	2.5 mm	1.6 mm	B3U	200000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Top Actuated Ground Tm w/out Boss B3U-1100PM Aratas 1: NT$51.98 1In Stock 4,000On Order	Mfr. Part # B3U-1100PM Mouser Part # 653-B3U-1100PM	Aratas	Tactile Switches Top Actuated Ground Tm w/out Boss	Datasheet	1In Stock 4,000On Order On Order Ship Dates Mfr. #: B3U-1100PM Stock: 1 Can Ship Immediately On Order: 2,000 Expected 3/4/2027 2,000 Expected 5/28/2027 Factory Lead-Time: 26 Weeks	Cut Tape NT$51.98 NT$45.53 NT$41.94 NT$38.00 Reel NT$31.55 View NT$35.24 NT$33.34 NT$27.71 NT$26.10 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Non-Illuminated	SMD/SMT	Straight	Round	OFF - (ON)	1.5 N	50 mA	12 VDC	No	SPST	Leadless	Black	4 mm	2.5 mm	1.6 mm	B3U	200000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Side Act w/out Boss w/out Ground Term B3U-3000PM Aratas 1: NT$50.55 918In Stock 3,000On Order	Mfr. Part # B3U-3000PM Mouser Part # 653-B3U-3000PM	Aratas	Tactile Switches Side Act w/out Boss w/out Ground Term	Datasheet	918In Stock 3,000On Order On Order Ship Dates Mfr. #: B3U-3000PM Stock: 918 Can Ship Immediately On Order: 1,000 Expected 1/26/2027 2,000 Expected 2/5/2027 Factory Lead-Time: 26 Weeks	Cut Tape NT$50.55 NT$43.38 NT$34.17 NT$31.73 Reel NT$27.35 View NT$29.68 NT$28.50 NT$25.99 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Non-Illuminated	SMD/SMT	Right Angle	Rectangular	OFF - (ON)	1.59 N	50 mA	12 VDC	No	SPST	Gull Wing Lead	Black	3 mm	2.5 mm	1.2 mm	B3U	100000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Side Actuate w/Boss w/out Ground Term B3U-3000PM-B Aratas 1: NT$50.55 1,527In Stock	Mfr. Part # B3U-3000PM-B Mouser Part # 653-B3U-3000PM-B	Aratas	Tactile Switches Side Actuate w/Boss w/out Ground Term	Datasheet	1,527In Stock	Cut Tape NT$50.55 NT$43.38 NT$40.51 NT$36.21 Reel NT$29.76 View NT$33.27 NT$31.44 NT$27.50 NT$25.99 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Non-Illuminated	SMD/SMT	Right Angle	Rectangular	OFF - (ON)	1.59 N	50 mA	12 VDC	No	SPST	Gull Wing Lead	Black	3 mm	2.5 mm	1.2 mm	B3U	100000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Tactile SideActuated Ground Term w/Boss B3U-3100P-B Aratas 1: NT$42.66 437In Stock 4,000Expected 12/25/2026	Mfr. Part # B3U-3100P-B Mouser Part # 653-B3U-3100P-B	Aratas	Tactile Switches Tactile SideActuated Ground Term w/Boss	Datasheet	437In Stock 4,000Expected 12/25/2026	Cut Tape NT$42.66 NT$37.28 NT$29.25 NT$27.46 View Reel NT$23.52 NT$25.24 NT$24.31 NT$23.73 NT$23.52 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Non-Illuminated	SMD/SMT	Right Angle	Rectangular	OFF - (ON)	1.6 N	50 mA	12 VDC	Yes	SPST	Solder Pin	Black	3 mm	1.2 mm	2.5 mm	B3U	100000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Tactile SideActuated Ground Term w/Boss B3U-3100PM-B Aratas 1: NT$50.55 1,130In Stock 1,000Expected 4/16/2027	Mfr. Part # B3U-3100PM-B Mouser Part # 653-B3U-3100PM-B	Aratas	Tactile Switches Tactile SideActuated Ground Term w/Boss	Datasheet	1,130In Stock 1,000Expected 4/16/2027	Cut Tape NT$50.55 NT$43.38 NT$40.51 NT$36.21 Reel NT$29.76 View NT$33.27 NT$31.44 NT$25.99 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Non-Illuminated	SMD/SMT	Right Angle	Rectangular	OFF - (ON)	1.6 N	50 mA	12 VDC	Yes	SPST	Gull Wing Lead	Black	3 mm	2.5 mm	1.2 mm	B3U	100000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Side Actuated w/o boss w/o ground B3U-3000P Aratas 1: NT$41.23 51,845On Order	Mfr. Part # B3U-3000P Mouser Part # 653-B3U-3000P	Aratas	Tactile Switches Side Actuated w/o boss w/o ground	Datasheet	51,845On Order On Order Ship Dates Mfr. #: B3U-3000P Stock: 0 On Order: 7,845 Expected 11/27/2026 44,000 Expected 1/29/2027 Factory Lead-Time: 4 Weeks	Cut Tape NT$41.23 NT$35.74 NT$28.97 NT$25.85 View Reel NT$21.87 NT$24.45 NT$23.73 NT$23.23 NT$21.87 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Non-Illuminated	SMD/SMT	Right Angle	Rectangular	OFF - (ON)	1.6 N	50 mA	12 VDC	No	SPST	Leadless	Black	2.5 mm	3 mm	1.2 mm	B3U	100000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Top Actuated with boss w/o ground B3U-1000P-B Aratas 1: NT$40.51 19,906On Order	Mfr. Part # B3U-1000P-B Mouser Part # 653-B3U-1000P-B	Aratas	Tactile Switches Top Actuated with boss w/o ground	Datasheet	19,906On Order On Order Ship Dates Mfr. #: B3U-1000P-B Stock: 0 On Order: 9,406 Expected 11/27/2026 10,500 Expected 1/1/2027 Factory Lead-Time: 4 Weeks	Cut Tape NT$40.51 NT$35.74 NT$33.23 NT$29.65 Reel NT$21.62 View NT$27.46 NT$25.96 NT$24.56 NT$21.19 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	Non-Illuminated	SMD/SMT	Straight	Round	OFF - (ON)	1.5 N	50 mA	12 VDC	No	SPST	Leadless	Black	2.5 mm	3 mm	1.2 mm	B3U	200000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Side Actuated with boss w/o ground B3U-3000P-B Aratas 1: NT$39.08 7,100Expected 11/27/2026	Mfr. Part # B3U-3000P-B Mouser Part # 653-B3U-3000P-B	Aratas	Tactile Switches Side Actuated with boss w/o ground	Datasheet	7,100Expected 11/27/2026	Cut Tape NT$39.08 NT$34.38 NT$29.65 NT$27.82 View Reel NT$23.41 NT$26.31 NT$25.31 NT$24.52 NT$23.41 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Non-Illuminated	SMD/SMT	Right Angle	Rectangular	OFF - (ON)	1.6 N	50 mA	12 VDC	No	SPST	Leadless	Black	2.5 mm	3 mm	1.2 mm	B3U	100000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Tactile SideActuated Ground Term NO Boss B3U-3100PM Aratas 1: NT$51.98 1,890Expected 2/26/2027	Mfr. Part # B3U-3100PM Mouser Part # 653-B3U-3100PM	Aratas	Tactile Switches Tactile SideActuated Ground Term NO Boss	Datasheet	1,890Expected 2/26/2027	Cut Tape NT$51.98 NT$44.45 NT$41.23 NT$36.57 Reel NT$29.36 View NT$33.88 NT$31.40 NT$28.00 NT$27.07 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Non-Illuminated	SMD/SMT	Right Angle	Rectangular	OFF - (ON)	1.59 N	50 mA	12 VDC	Yes	SPST	Gull Wing Lead	Black	3 mm	2.5 mm	1.2 mm	B3U	100000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Tactile,Top Actuated Gnd.BOSS B3U-1100P-B Aratas 1: NT$44.45 Lead-Time 28 Weeks	Mfr. Part # B3U-1100P-B Mouser Part # 653-B3U-1100P-B	Aratas	Tactile Switches Tactile,Top Actuated Gnd.BOSS	Datasheet	Lead-Time 28 Weeks	Cut Tape NT$44.45 NT$38.00 NT$35.24 NT$31.51 View Reel NT$21.15 NT$29.76 NT$25.74 NT$24.81 NT$21.15 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	Non-Illuminated	SMD/SMT	Straight	Round	OFF - (ON)	1.5 N	50 mA	12 VDC	Yes	SPST	Leadless	Black	3 mm	1.2 mm	2.5 mm	B3U	200000 Cycle	IP40	Reel, Cut Tape, MouseReel
Tactile Switches Top Actuated Ground Term w/Boss Aratas B3U-1100PM-B B3U-1100PM-B Aratas 1: NT$49.47 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # B3U-1100PM-B Mouser Part # 653-B3U-1100PM-B	Aratas	Tactile Switches Top Actuated Ground Term w/Boss	Datasheet	Non-Stocked Lead-Time 26 Weeks	Cut Tape NT$49.47 NT$44.81 NT$41.23 NT$37.64 Reel NT$26.64 View NT$35.28 NT$27.10 NT$26.21	Min.: 1 Mult.: 1 : 1,000	Non-Illuminated						50 mA	12 VDC								B3U			Reel, Cut Tape

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