Datasheet

B3SN

Sealed Tactile Switch (SMT)

Compact Surface Mount Tactile Switch

with Sealed Construction

• Sealed construction conforming to IP67 (IEC-

60529) provides high reliability in locations

exposed to dust or water. (* Excluding the termi

nal section.)

• Available with ground terminals for protection

against static electricity.

• Use of a stainless-steel spring provides a crisp

clicking action.

• Gold plated version enables stable contact and

insulation over long periods of time.

• Available in embossed taping packages for auto-

matic mounting.

■ List of Models

Note: Switches in bags must be ordered in units of 100 pieces, and Switches on embossed taping must be ordered in units of 3,000 piec-

es. Individual Switches are not sold individually.

■ Ratings/Characteristics

■ Operating Characteristics

RoHS Compliant

Type Plunger color Bags (in units of 100 Switches) Embossed taping

(in units of 3,000 Switches)

Standard, without ground terminal Ivory B3SN-3012 B3SN-3012P

Standard, with ground terminal Ivory B3SN-3112 B3SN-3112P

Gold-plated, without ground terminal Black --- B3SN-3012P-G

Ratings 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 form SPST-NO

Contact resistance 100 mΩ max. (initial value) (rated: 1 mA, 5 VDC)

Insulation resistance 100 MΩ min. (at 250 VDC)

Dielectric strength 250 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/s

{approx. 100G} max.

Durabulity 100,000 operations min.

Weight Approx. 0.2 g

Item Type Standard Gold-plated (B3SN-G)

Operating force (OF) 1.57±0.49 N {160±50 gf} max. 1.76±0.59 N {180±60 gf} max.

Releasing force (RF) 0.29 N {30 gf} min.

Pretravel (PT) 0.25±0.15 mm

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Sealed Tactile Switch (SMT) B3SN Compact Surface Mount Tactile Switch with Sealed Construction • Sealed construction conforming to IP67 (IEC60529) provides high reliability in locations exposed to dust or water. (* Excluding the terminal section.) • Available with ground terminals for protection against static electricity. • Use of a stainless-steel spring provides a crisp clicking action. • Gold plated version enables stable contact and insulation over long periods of time.
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B3SN ■ B3SN Model Structure Film Plunger Contact dome Pushbutton Cover Fixed contact Terminals ■ Base Dimensions Note: 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. 2 1 4 3 (Bottom View) Without Ground Terminal B3SN-3012 B3SN-3012P B3SN-3012-G 7±0.
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B3SN B3SN • Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.