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C&K COMPONENTS 8121SD9A2GE Snap-acting Pushbutton Switch

The C&K COMPONENTS 8121SD9A2GE is a snap-acting momentary pushbutton switch designed for a variety of applications. It provides a positive tactile feel and offers multiple position options to suit different needs. The switch incorporates an epoxy terminal seal, ensuring compatibility with bottom wash cleaning processes. Available in RoHS compliant models, this switch is suitable for instrumentation, computer peripherals, and telecommunications equipment. Its robust construction and reliable performance make it a dependable choice for demanding industrial environments.

Authorized Distributors
Source:Newark
Part No:8121SD9A2GE
Stock:352
Inv Date:06-15-2026
Price: Unit price: $14.73
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Source:DigiKey
Part No:8121SD9A2GE
Stock:0
Inv Date:06-15-2026
Price: Unit price: $16.6
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Part No:8121SD9A2GE
Stock:0
Inv Date:06-16-2026
Price: Unit price: $16.56
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Part No:8121SD9A2GE
Stock:0
Inv Date:06-15-2026
Price: Unit price: $15.69
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Part No:8121SD9A2GE
Stock:361
Inv Date:06-15-2026
Price: Unit price: $24.09
Buy/RFQ:
Part No:8121SD9A2GE
Stock:361
Inv Date:06-15-2026
Price: Unit price: $24.09
Buy/RFQ:

C&K COMPONENTS 8121SD9A2GE Snap-acting Pushbutton Switch Specifications:

  • Contact Rating: 0.4 VA max. @ 20 V AC or DC (B contact material), 1 AMP @ 120 V AC or 28 V DC (G contact material)
  • Electrical Life: 60,000 make-and-break cycles at full load
  • Contact Resistance: Below 50 mΩ typ. initial @ 2-4 V DC, 100 mA
  • Insulation Resistance: 10[9] Ω min.
  • Dielectric Strength: 1,000 Vrms min. @ sea level
  • Operating Temperature: -30ºC to 75ºC (8X2X models), -30ºC to 65ºC (U8X1 models)
  • Cap Installation Force: 10 lbs. max. permissible
  • Solderability: Per MIL-STD-202F method 208D or EIA RS-186E method 9
  • Case Material: Glass filled nylon 6/6 or diallyl phthalate (DAP), flame retardant (UL 94V-0)
  • Plunger Material: Glass filled nylon or glass filled polyester (PBT) (UL 94V-0)
  • Cap and Frame Material: Nylon, black
  • Bushing Material: Brass or zinc, nickel plated
  • Housing Material: Stainless steel
  • Switch Support Material: Brass or steel, matte-tin plated
  • N.O. & N.C. Contacts Material: Coin silver with gold plate over nickel plate (G contact material), Copper alloy with gold plate over nickel plate (B contact material)
  • Terminal Seal Material: Epoxy

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How do I troubleshoot issues or seek technical support for part 8121SD9A2GE?

You can download the 8121SD9A2GE datasheet or visit the C&K COMPONENTS website for support.

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