B3U データシートの表示（PDF） - OMRON Corporation

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B3U

Ultra-small Tactile Switch (SMT)

OMRON Corporation 

Ultra-small Tactile Switch (SMT) B3U

Ultra-small Surface-mounting Tactile

Switches with High Contact Reliability

(1.2 × 3 × 2.5 mm (H × W × D)

• Smallest class in the industry for high-density

mounting of compact devices.

• Surface mounted: Ideal for high-density mounting.

• Models with ground terminals are available for

protection against static electricity.

• Available on embossed tape: Ideal for automatic

mounting.

RoHS Compliant

■ List of Models

Operation

type

B3U-1000

Series:

Top-

actuated

B3U-3000

Series:

Side-

actuated

Contact

material

Silver

plated

Height

1.6 mm

3.2 mm

Operating

force (OF)

1.5 N

{153 gf}

1.59 N

{162 gf}

Plunger

color

Black

Locating

pin

Without

boss

With

boss

Without

boss

With

boss

Embossed taping (standard quantity)

Without

ground

terminal

With ground Minimum

terminal packing

unit

B3U-1000P B3U-1100P 3,500

B3U-1000P-B B3U-1100P-B

B3U-3000P B3U-3100P 4,000

B3U-3000P-B B3U-3100P-B

Embossed taping (small quantity)

Without

ground

terminal

With ground Minimum

terminal

packing

unit

B3U-1000PM B3U-1100PM 1,000

B3U-1000PM-B B3U-1100PM-B

B3U-3000PM B3U-3100PM 1,000

B3U-3000PM-B B3U-3100PM-B

Note: Orders must be made in multiples of the order unit specified above.

■ Ratings/Characteristics

■ Operating Characteristics

Item

Operation

Top-actuated

type (B3U-1000 Series)

Side-actuated

(B3U-3000 Series)

Rating

(resistive load)

1 to 50 mA, 3 to 12 VDC

Minimum applicable 10 μA at 1 VDC (resistive load)

load (reference value)

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 form

SPST-NO

Contact resistance

(initial value)

100 mΩ max.

Insulation resistance 100 MΩ min. (at 100 VDC with insulation tester)

Dielectric strength

250 VAC, 50/60 Hz for 1 min

Bounce time

5 ms max.

Vibration resistance 10 to 55 Hz, 1.5 mm double amplitude

Shock resistance

1,000 m/s2 max.

Durability

200,000 operations

min.

100,000 operations

min.

Weight

Approx. 0.022 g

Degree of protection IEC IP40

Washing

Not possible

Operation type

Item

Operating force (OF)

Releasing force (RF)

Pretravel (PT)

Top-actuated

(B3U-1000 Series)

1.50 ± 0.49 N

{153 ± 50 gf}

0.2 N min. {20 gf}

0.15

+0.2

−0.1

mm

Side-actuated

(B3U-3000 Series)

1.59 ± 0.49 N

{162 ± 50 gf}

0.2

+0.2

−0.1

mm

1

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