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Sealed Tiny Pushbutton Switches

EP, Pushbutton

Features/Benefits

  • Sealed against solder & cleaning processes
  • Thru-hole and surface mount models
  • Snap-fitting actuator accepts standard caps
  • Tape & reel packaging available
  • RoHS compliant models available

Typical Applications

  • Telecommunications and networking equipment
  • Computers and peripherals
  • Instrumentation and controls

Specifications

  1. CONTACT RATING: B contact material: 0.4 VA max. @ 20 V AC or DC max. See page A-13 for additional ratings.
  2. ELECTRICAL LIFE: EP11, EP21 models: 60,000 make-and-break cycles at full load. EP12 models: 30,000 cycles.
  3. CONTACT RESISTANCE: Below 20 mΩ typ. initial @ 2-4 V DC, 100 mA, for both silver and gold plated contacts.
  4. INSULATION RESISTANCE: 109 Ω min.
  5. DIELECTRIC STRENGTH: 1000 Vrms min. @ sea level.
  6. OPERATING TEMPERATURE: –30ºC to 85ºC.
  7. SOLDERABILITY: Per MIL-STD-202F method 208D, or EIA RS-186E method 9 (1 hour steam aging).
  8. DEGREE OF PROTECTION: IP57; Protection against harmful dust deposit, full-scale voltage protection, temporary immersion.
  9. PACKAGING: Surface mount switches standard in anti-static tape and reel packaging per EIA 481-3, see page A-14 for drawings and reel information. Tape and cover strip are conductive for use near statically sensitive components, consult Customer Service Center.

Materials

  1. CASE & BUSHING: High temperature material, glass filled nylon 4/6, flame retardant, heat stabilized (UL 94V-0) on EP11 / EP12 models; glass filled nylon 6/6 on EP21.
  2. PLUNGER: Thermoplastic polyester or glass filled nylon (UL 94V-0), with internal o-ring seal. SA surface mount: High temperature material, glass filled LCP (UL 94V-0).
  3. SWITCH SUPPORT: Brass, matte-tin plated.
  4. CONTACTS & TERMINALS: B contact material: Copper alloy, with gold plate over nickel plate. See page A-13 for additional contact materials.
  5. TERMINAL SEAL: Epoxy.