A28JH/328-JA NKK Switches

Series A Process Sealed Subminiature Toggles A General Specifications Electrical Capacity (Resistive Load) Logic Level: 0.4VA maximum 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A 20mV ~ 28V) Note: Find additional explanation of operating range in Supplement section. Other Ratings Contact Resistance: 50 milliohms maximum Insulation Resistance: 500 megohms minimum 500V DC Dielectric Strength: 500V AC minimum between contacts for 1 minute minimum 500V AC minimum between contacts & case for 1 minute minimum Mechanical Life: 100,000 operations minimum for On-None-On & On-Off-On 50,000 operations minimum for other circuits Electrical Life: 50,000 operations minimum Nominal Operating Force: 1.47N (momentary) 1.18N (maintained) for .394 (10.0mm) toggles 2.73N (momentary) 1.84N (maintained) for all other toggles Contact Timing: Nonshorting (break-before-make) Angle of Throw: 26 Materials & Finishes Toggle: Glass fiber reinforced polyamide for antistatic nickel plated brass for all others Case Housing: Glass fiber reinforced polyamide Support Bracket: Tin plated phosphor bronze Movable Contact: Phosphor bronze with gold plating Stationary Contacts: Brass with gold plating Terminals: Brass with gold plating Environmental Data Operating Temperature Range: 30C through +85C (22F through +185F) 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 A in Supplement section. Manual Soldering: See Profile B in Supplement section. Cleaning: Automated cleaning. See Cleaning Specifications in Supplement section. Standards & Certifications The A Series toggles 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. A4 www.nkkswitches.com 6/18/18 Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesProcess Sealed Subminiature Toggles Series A A Distinctive Characteristics Subminiature size saves space on PC boards. Specifically developed for logic-level applications. Totally sealed body construction prevents contact contamination and allows time- and money-saving automated soldering and cleaning. Award-winning STC contact mechanism with benefits unavailable in conventional mechanisms: smoother, positive detent actuation, increased contact stability and unparalleled logic-level reliability. (Additional STC details in Terms & Acronyms see Supplement contents.) Molded-in, epoxy sealed or ultrasonically welded terminals lock out flux, solvents, and other contaminants100 x .100 (2.54mm x 2.54mm) terminal spacing conforms to standard PC board grid spacing. Toggle option in antistatic material available for dissipating electrostatic discharges. Matching indicators available. Actual Size www.nkkswitches.com A5 Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles