Series KB Miniature Pushbuttons General Specifications Electrical Capacity (Resistive Load) Power Level (silver): 1A 125/250V AC or 1A 30V DC Logic Level (gold): 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: 1,000 megohms minimum 500V DC Dielectric Strength: For Silver: 1,000V AC minimum between contacts for 1 minute minimum & 1,500V AC minimum between contacts & case for 1 minute minimum D For Gold: 750V AC minimum between contacts for 1 minute minimum & 1,500V AC minimum between contacts & case for 1 minute minimum Mechanical Life: 100,000 operations minimum Electrical Life: 50,000 operations minimum for silver 100,000 operations minimum for gold Nominal Operating Force: Single pole 0.98 ~ 2.45N for maintained & 0.98 ~ 1.96N for momentary Double pole 1.47 ~ 3.43N for maintained & 1.47 ~ 2.94N for momentary Contact Timing: Nonshorting (break-before-make) Travel: Pretravel .087 (2.2mm) Overtravel .031 (0.8mm) Total Travel .118 (3.0mm) Materials & Finishes Housing: Polyamide (UL94V-0) Movable Contactor: Silver for power circuit copper with gold plating for logic level circuit Stationary Contacts: Silver for power circuit copper with gold plating for logic level circuit Housing Base: Polyamide (UL94V-0) Terminal Base: Polyester Common Terminals: Phosphor bronze with silver flash plating for power circuit Phosphor bronze with gold flash plating for logic level circuit End Terminals: Brass with silver flash plating for power circuit Brass with gold flash plating for logic level circuit Lamp Terminals: Phosphor bronze with nickel flash plating Environmental Data Operating Temperature Range: 25C through +50C (13F through +122F) for Illuminated 25C through +70C (13F through +158F) for Nonilluminated Humidity: 90 ~ 95% humidity for 96 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 3 shocks in each direction) Installation Mounting Torque: 0.78Nm (6.9 lbin) maximum Cap Installation Force: 4.51N (1.0 lbf) maximum downward force on cap Soldering Time & Temperature: Manual Soldering: See Profile A in Supplement section. Standards & Certifications Flammability Standards: UL94V-0 housing & housing base UL: File No. E44145 - Recognized only when ordered with marking on switch. Add /U or /CUL before rfi st dash in part number to order UL recognized switch. Single & double pole models recognized at 1A 125/250V AC, 1A 30V DC, & 0.4VA 28V DC. CSA: File No. 023535 0 000 - Certified only when ordered with marking on switch. Add /C before rfi st dash in part number to order CSA certified switch. Single & double pole models recognized at 1A 125/250V AC, 1A 30V DC, & 0.4VA 28V DC. D22 www.nkkswitches.com Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesMiniature Pushbuttons Series KB Distinctive Characteristics Bright illumination with numerous color variations. Spot illumination available. Square, rectangular, and round shaped caps. Front panel relamping. Choice of bright or super bright LEDs in red, amber, green, white, and blue. D Latchdown feature gives indication of circuit status. Audible and tactile feedback with smooth and responsive operation. Snap-action mechanism for long life. Stainless steel frame on snap-in models has a specially designed projection, which prevents rotation and correctly orients switch in panel. 12mm body diameter. Molded-in terminals lock out flux, dust, and other contaminants. 8mm panel thickness capability. Rear panel bushing or snap-in mounting. Optional PCB adaptors in straight and right angle types. Matching indicators available. Actual Size www.nkkswitches.com D23 Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles