Sealed Tactile Switch B3W | OMRON Electronic Components Web

Sealed construction conforming to IP67 (IEC-60529) provides high reliability in locations exposed to dust or water.
(* Excluding the terminal section.)
Available in two sizes: 6 × 6 mm and 12 × 12 mm sizes.
Ground terminal available to protect against static electricity.
Projected plunger types that allow the installation of B32-series Special Key Tops are available.

Updated October 24, 2011

This web page provides an excerpt from a datasheet.
Refer to Datasheet and other applicable documents for more information.

Type	Plunger	Height	Operating force (OF)	Plunger color	Bags (in units of 100 Switches)
Type	Plunger	Height	Operating force (OF)	Plunger color	Without ground terminal	With ground terminal
6 × 6 mm B3W-1000	Flat type	4.3mm	1.57 N {160 gf}	White	B3W-1000	B3W-1100
	Flat type	4.3mm	2.26 N {230 gf}	Yellow	B3W-1002	B3W-1102
	Projected type	7.3mm	1.57 N {160 gf}	White	B3W-1050	B3W-1150
	Projected type	7.3mm	2.26 N {230 gf}	Yellow	B3W-1052	B3W-1152
12× 12 mm B3W-4000	Flat type	4.3mm	1.96 N {200 gf}	White	B3W-4000	B3W-4100
	Flat type	4.3mm	3.43 N {350 gf}	Yellow	B3W-4005	B3W-4105
	Projected type	7.3mm	1.96 N {200 gf}	White	B3W-4050	B3W-4150
	Projected type	7.3mm	3.43 N {350 gf}	Yellow	B3W-4055	B3W-4155

Note: Bulk Packaged, 100 switches per bag. Order in multiples of the package quantity.

Switching capacity	1 to 50 mA, 5 to 24 VDC (resistive load)
Ambient operating temperature	-25°C to +70°C at 60%RH max. (with no icing or condensation)
Ambient operating humidity	35% to 85% (at 5 to 35°C)
Contact configuration	SPST-NO
Contact resistance	100 mΩ max. (initial value) (rated: 1 mA, 5 VDC)
Insulation resistance	100 MΩ min. (at 250 VDC)
Dielectric strength	500 VAC, 50/60 Hz for 1 min
Bounce time	5 ms max.
Vibration resistance	Malfunction: 10 to 55 Hz, 1.5 mm double amplitude
Shock resistance	Destruction: 1,000 m/s² {approx. 100 G} max. Malfunction: 100 m/s² {approx. 10 G} max.
Durability	B3W-1000: 1.57 N (standard force):1,000,000 operations min. 2.26 N (high-force):300,000 operations min. B3W-4000: 1.96 N (standard force):3,000,000 operations min. 3.43 N (high-force):1,000,000 operations min.
Weight	6 × 6 mm: approx. 0.3 g, 12 × 12 mm: approx. 1 g

Operating Characteristics

Item

B3W-1000

B3W-4000

1.57N

2.26N

1.96N

3.43N

Operating
force(OF)

1.57N {160 gf} max.

2.26N {230 gf} max.

1.96N {200 gf} max.

3.43N {350 gf} max.

Releasing
force (RF)

0.2N {20gf} min.

0.49 {50 gf} min.

0.29N {30 gf} min.

0.49N {50 gf} min.

Pretravel (PT)

0.25^+0.2/_-0.1mm

0.3^+0.2/_-0.1mm

Note:	1.	All units are in millimeters unless otherwise indicated. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
	2.	No terminal numbers are indicated on the Switches. The numbers used for terminals in the following graphics are indicated in the “Bottom View” diagram below. In this diagram, the Switch is rotated so that the terminals are on the right and left-hand sides, and the OMRON logo appears the right way up.