Series SK Process Sealed Keylocks General Specifications Electrical Capacity (Resistive Load) Logic Level: 0.4VA maximum 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A 20mV ~ 28V) See Supplement section to find explanation of operating range Other Ratings Contact Resistance: 80 milliohms maximum Insulation Resistance: 100 megohms minimum 500V DC Dielectric Strength: 500V AC minimum for 1 minute minimum Mechanical Life: 30,000 cycles minimum Electrical Life: 10,000 cycles minimum Nominal Operating Torque: .026Nm (.234 lbin) for momentary action models .020Nm (.182 lbin) for maintained action models Contact Timing: Break-before-make Angle of Throw: 90 for 2-position & 45 for 3-position F Materials & Finishes Boot: Polyvinyl chloride Key: Brass alloy with bright nickel plating brass alloy with bright nickel plating & ABS resin handle Tumbler Barrel: Polyacetal Bushing: Zinc alloy with nickel plating Bracket: Steel with tin plating Base: Glass fiber reinforced polyamide Movable Contactor: Beryllium copper with gold plating Stationary Contacts: Copper with gold plating Terminals: Brass with tin plating Environmental Data Operating Temperature Range: 25C through +70C (13F through +158F) Humidity: 90 ~ 95% humidity for 240 hours 40C (104F) Vibration: 10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning in 1 minute 3 right angled directions for 2 hours 2 Shock: 50G (490m/s ) acceleration (tested in 6 right angled directions, with 5 shocks in each direction) PCB Processing Soldering: Wave Soldering recommended: See Profile B in Supplement section. Manual Soldering: See Profile B in Supplement section. Cleaning: Automated cleaning. Boot must be on switch during processing. See Cleaning specifications in Supplement section. Standards & Certifications These SK Series devices have not been tested for UL recognition or CSA certification. These switches are designed for use in a low-voltage, low-current, logic-level circuit. When used as intended in a logic-level circuit, the results do not produce hazardous energy. F20 www.nkk.com Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesProcess Sealed Keylocks Series SK Distinctive Characteristics Sealed body construction plus disposable boot protect contacts and allow automated processing. Molded-in terminals seal out flux, solvents, and other contaminants. Short body size for space-saving, behind panel dimensions. Detent mechanism, with its spring-operated steel ball, gives crisp, positive action for F accurate switch setting. Bifurcated, self-wiping contact mechanism provides unequalled logic-level reliability and smoother, positive detent actuation. Crimped bracket legs ensure secure PCB mounting and prevent dislodging during automated wave soldering100 x .100 (2.54mm x 2.54mm) terminal spacing conforms to standard PC board grid spacing. Actual Size www.nkk.com F21 Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles