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C&K COMPONENTS PTS641SK31SMTR2LFS SMT Top Actuated Switch

The C&K PTS641SK31SMTR2LFS is a versatile SMT tactile switch designed for a wide range of industrial applications. This switch offers a momentary action and a single-pole, single-throw (SPST) normally open (N.O.) contact arrangement. Its compact 6.3x6.3mm footprint makes it ideal for space-constrained designs. The PTS641 series provides multiple actuation force options (160gf, 250gf, and 320gf) and heights (2.5mm, 3.1mm, and 3.4mm) to accommodate various user preferences and system requirements. Common applications include metering systems, white goods, and home and garden equipment. The switch is RoHS compliant and packaged in tape and reel format for automated assembly.

Authorized Distributors
Source:Newark
Part No:PTS641SK31SMTR2LFS
Stock:13500
Inv Date:06-15-2026
Price: Unit price: $0.267
Buy/RFQ:
Source:DigiKey
Part No:PTS641SK31SMTR2 LFS
Stock:10120
Inv Date:06-15-2026
Price: Unit price: $0.41
Buy/RFQ:
Part No:PTS641SK31SMTR2LFS
Stock:8587
Inv Date:06-16-2026
Price: Unit price: $0.4
Buy/RFQ:
Part No:PTS641SK31SMTR2LFS
Stock:27000
Inv Date:06-15-2026
Price: Unit price: $0.2034
Buy/RFQ:

C&K COMPONENTS PTS641SK31SMTR2LFS SMT Top Actuated Switch Specifications:

  • Function: Momentary action
  • Contact Arrangement: 1 make contact = SPST N.O.
  • Terminals: G type for SMT
  • Travel: 0.20 mm ±0.15 mm (160 & 250 gf), 0.30 mm ±0.15 mm (320 gf)
  • Operating Life: 100,000 cycles
  • Operation Force: 160 gf ±50 gf (blue actuator), 250 gf ±50 gf (red actuator), 320 gf ±80 gf (black actuator)
  • Maximum Voltage: 12 VDC
  • Maximum Current DC: 50 mA
  • Dielectric Strength: 250 VA C (1mn)
  • Contact Resistance: 100 m Ω
  • Insulation Resistance: ≥ 100 M Ω
  • Bounce Time: < 5 ms
  • Operating Temperature: -20˚C to 85˚C
  • Soldering: Infrared Reflow Soldering in accordance with IEC61760-1
  • Footprint: 6.3 x 6.3 mm
  • Packaging: Reels of 1,500 pieces, EIA 481B, External diameter 330 mm

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