Series UB Low Profile Pushbuttons
General Specifications
Electrical Capacity (Resistive Load)
Power Level (silver): 5A @ 125/250V AC or 5A @ 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 for silver; 100 milliohms maximum for gold
Insulation Resistance: 200 megohms minimum @ 500V DC
Dielectric Strength: 1,000V AC minimum between contacts for 1 minute minimum;
D
1,500V AC minimum between contacts & case for 1 minute minimum
Mechanical Life: 1,000,000 operations minimum for momentary;
200,000 operations minimum for alternate action
Electrical Life: 10,000 operations minimum for silver;
100,000 operations minimum for silver with resistive load of 3A @ 125V AC
200,000 operations minimum for gold
Nominal Operating Force: Single Pole: 1.9N for Square & 1.9N for Rectangular
Double Pole: 2.55N for Square & 3.1N for Rectangular
Contact Timing: Break before make
Travel: Pretravel .067 (1.7mm); Overtravel .024 (0.6mm); Total Travel .091 (2.3mm)
Materials & Finishes
Housing/Bezel: Glass fiber reinforced polyamide (UL94V-0)
Snap-in Frame: Stainless steel
Movable Contactor: Phosphor bronze
Movable Contacts: Silver alloy or copper with gold plating
Stationary Contacts: Silver alloy or copper with gold plating
Switch Terminals: Phosphor bronze with silver or gold plating
Lamp Terminals: Brass with silver plating
Base: Glass fiber reinforced liquid crystal polymer (UL94V-0)
Environmental Data
Operating Temperature Range: 25C through +50C (13F through +122F) for Illuminated
20C through +70C (4F 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 5 shocks in each direction)
Installation
Cap Installation Force: 7.55N (1.70 lbf) maximum downward force on cap
Soldering Time & Temp: Wave Soldering (PC version): See Profile A in Supplement section.
Manual Soldering: See Profile A in Supplement se ction.
Cleaning: These devices are not process sealed. Hand clean locally using alcohol based solution.
Standards & Certifications
Flammability Standards: UL94V-0 housing/bezel & base
UL: File No. E44145 - Recognized only when ordered with marking on switch.
Add /U or /CUL before dash in part number to order UL recognized switch.
UL recognized only when ordered switch body with cap assembled.
All single & double pole models recognized at 5A @ 125/250V AC or 0.014A @ 28V DC.
CSA: File No. 023535_0_000 - Certified only when ordered with marking on switch.
Add /C before dash in part number to order CSA certified switch.
All single & double pole models certified at 5A @ 125/250V AC or 5A @ 30V DC or
0.4VA maximum @ 28V AC/DC maximum.
D80 www.nkkswitches.com
11/12/18
Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesLow Profile Pushbuttons Series UB
Distinctive Characteristics
Red/green and amber/blue bicolors with alternating standard or custom legends.
Super bright LED provides brilliant uniform illumination.
Bright or super bright LEDs (an integral part of the switch) of red,
amber, green, blue, or white, in full face or spot illumination
plus square or rectangular models.
D
Combination of PCB mountability and short body
allows use in compact applications.
Small behind panel dimension for snap-in
mounting in tight spaces.
Snap-acting contact mechanism provides
sensitive actuation with audible feedback;
quick-make, quick-break characteristic
limits arcing and prolongs electrical life.
Latchdown mechanism, independent of switching
mechanism, gives visible and tactile indication of
circuit status.
Terminals are epoxy sealed to lock out flux, solvents, and
other contaminants.
Momentary and alternate action circuits available in the same
space-saving body size.
Actual Size
Matching indicators available.
www.nkkswitches.com D81
Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles