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C&K COMPONENTS Y78B74124FP Microminiature SMT Switch

The C&K COMPONENTS Y78B74124FP is a microminiature SMT (Surface Mount Technology) top-actuated switch, ideal for space-constrained applications. It features IP67 Watertight protection, making it suitable for harsh environments. The switch offers ultra-low current capabilities and an excellent tactile feel, enhancing user experience. Typical applications include automotive, medical, consumer electronics, and industrial equipment. It is available in various configurations with different actuation forces and contact arrangements to meet diverse design needs. The switch utilizes gullwing terminals for easy SMT assembly and is compatible with lead-free reflow soldering processes.

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Source:Newark
Part No:Y78B74124FP
Stock:25411
Inv Date:06-15-2026
Price: Unit price: $0.799
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Part No:Y78B74124FP
Stock:0
Inv Date:06-16-2026
Price: N/A
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Part No:Y78B74124FP
Stock:0
Inv Date:06-15-2026
Price: Unit price: $0.74
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Part No:Y78B74124FP
Stock:84822
Inv Date:06-15-2026
Price: Unit price: $0.5906
Buy/RFQ:
Part No:Y78B74124FP
Stock:84822
Inv Date:06-15-2026
Price: Unit price: $0.5906
Buy/RFQ:

C&K COMPONENTS Y78B74124FP Microminiature SMT Switch Specifications:

  • maximum_power: 1 VA (Silver), 0.2 VA (Gold)
  • maximum_voltage: 32 VDC
  • minimum_voltage: 20 mVDC
  • maximum_current: 50 mA (Silver), 10 mA (Gold)
  • minimum_current: 1 mA (Silver), 1 µA (ULC)
  • dielectric_strength: ≥ 250 Vrms
  • contact_resistance: ≤ 100 mΩ
  • insulation_resistance: ≥ 1GΩ
  • bounce_time: ≤ 3 ms
  • contact_arrangement: 1 make contact = SPST, N.O.
  • operating_force: 1.2 N (120 grs) ± 0.30 to 4.0 N (400 grs) ± 1.00
  • operating_life: 100,000 cycles (Standard), 300,000 cycles (Long Life)
  • travel: 0.20 mm ± 0.1 to 0.30 mm ± 0.1
  • operating_temperature: -40˚C to 85˚C (Silver), -40˚C to 125˚C (Gold)
  • storage_temperature: -55˚C to 85˚C (Silver), -55˚C to 125˚C (Gold)
  • tactile_feeling: ≥ 20% (1.2N), ≥ 25% (2N, 3N, 4N)

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