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E020
Sealed Snap-acting Momentary Pushbutton Switches
Features/Benefits
- Process sealed with disposable splashproof boot
- Long life contact design
- Snap-fitting plunger available
- RoHS compliant models available
Typical Applications
- Instrumentation
- Telecommunications and networking equipment
- Computers and peripherals
Specifications
- CONTACT RATING: B contact material (EX25 Models): 0.4 VA max. @ 20 V AC or DC max. G contact material (EX21 Models): 1 AMP @120 V AC or 28 V DC or 0.4 VA max. @ 20 V AC or DC max. Note: Break-before-make contacts. Multi-pole contacts do not make and break simultaneously. See page A-26 for additional ratings.
- ELECTRICAL LIFE: 60,000 make-and-break cycles at full load.
- CONTACT RESISTANCE: Below 50 mΩ typ. initial @ 2–4 V DC, 100 mA, for both silver and gold plated contacts.
- INSULATION RESISTANCE: 109Ω min.
- DIELECTRIC STRENGTH: 1000 Vrms min. @ sea level.
- OPERATING TEMPERATURE: –30ºC to 75ºC.
- CAP INSTALLATION FORCE: 10 lbs. max. permissible.
- SOLDERABILITY: Per MIL-STD-202F method 208D, or EIA RS-186E method 9 (1 hour steam aging).
Materials
- CASE & BUSHING: Glass filled nylon 6/6, flame retardant (UL 94V-0).
- PLUNGER: Glass filled nylon or glass filled polyester (PBT) (UL 94V-0).
- SWITCH SUPPORT: Brass or steel, matte-tin.
- SWITCH SUPPORT RETAINER: Stainless steel. N.O. & N.C. CONTACTS: EX25 MODELS: B contact material: Copper alloy, with gold plate over nickel plate. EX21 MODELS: G contact material: Coin silver, with gold plate over nickel plate. See page A-26 for additional contact materials.
- COMMON CONTACTS & ALL TERMINALS: Copper alloy, with gold plate over nickel plate. See page A-26 for additional contact materials.
- TERMINAL SEAL: Epoxy.
- DISPOSABLE BOOT: Vinyl splashproof boot supplied standard. Remove and discard only after soldering and cleanin processes are complete.