Designing Technology into Solutions
 

8500

Subminiature Pushbutton Switches

8500, Pushbutton

Features/Benefits

  • Pre-travel or over-travel models available
  • Ratings up to 3 AMPS
  • Reliable contact design
  • RoHS compliant

Typical Applications

  • Detection
  • Telecommunications and networking equipment
  • Computers and peripherals

Specifications

  1. CONTACT RATING: Q contact material (853X Models): 1 AMP @ 120 V AC or 28 V DC; (855X Models): 3 AMPS @ 120 V AC or 28 V DC. See page A-65 for additional ratings.
  2. ELECTRICAL LIFE: 853X MODELS: 250,000 actuations at full load. 855X MODELS: 10,000 actuations at full load.
  3. CONTACT RESISTANCE: Below 30 mΩ typ. initial @ 2-4 V DC, 100 mA, for both silver and gold plated contacts.
  4. INSULATION RESISTANCE: 109Ω min.
  5. DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level.
  6. OPERATING TEMPERATURE: –30ºC to 65ºC.

Materials

  1. CASE: Glass filled phenolic or diallyl phthalate (DAP) (UL 94V-0).
  2. PLUNGER: Phenolic or glass filled polyester, black standard(UL94V-0).
  3. CAP & FRAME: Nylon, black, standard.
  4. BUSHING: Brass, nickel plated.
  5. CONTACTS: Q contact material: Coin silver, silver plated. See page A-65 for additional contact materials.
  6. TERMINALS: Q contact material: Copper alloy, silver plated. See page A-65 for additional contact materials.
  7. TERMINAL SEAL: Epoxy.
  8. HARDWARE: Nut: Brass, nickel plated; Lockwasher: Steel, bright nickel plated.
 

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