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