Short Body Pushbuttons
Series YB
General Specifications
Electrical Capacity (Resistive Load)
Power Level (silver):
Logic Level (gold):
3A @ 125V AC or 3A @ 250V AC or 3A @ 30V DC
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:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Force:
Contact Timing:
Travel:
50 milliohms maximum for silver; 100 milliohms maximum for gold
200 megohms minimum @ 500V DC
1,000V AC minimum between contacts for 1 minute minimum;
1,500V AC minimum between contacts & case for 1 minute minimum
1,000,000 operations minimum for momentary circuit
200,000 operations minimum for maintained circuit
100,000 operations minimum
Single pole: 1.47N for nonsealed; 1.67N for sealed
Double pole: 2.75N for nonsealed; 2.94N for sealed
Nonshorting (break-before-make)
Pretravel .059” (1.5mm); Overtravel .059” (1.5mm); Total Travel .118” (3.0mm)
Materials & Finishes
Housing/Bezel:
Snap-in Frame:
Base:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Glass fiber reinforced polyamide (UL94V-0)
Stainless steel
Diallyl phthalate resin (UL94V-0)
Phosphor bronze with silver or gold plating
Silver alloy with silver plating or brass with gold plating
Silver alloy or copper with gold plating
Phosphor bronze with tin plating
Environmental Data
Operating Temp Range:
Humidity:
Vibration:
Shock:
Sealing:
–25°C through +70°C (–13°F through +158°F)
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
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
50G (490m/s
2
) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
IP65 of IEC60529 standard for panel seal models
Installation
Mounting Torque:
Soldering Time & Temperature:
0.785Nm (6.95 lb
•
in) maximum
Manual Soldering: See Profile A in Supplement section.
Standards & Certifications
Flammability Standards:
UL & C-UL Recognized:
R
CSA Certified:
UL94V-0 housing & base
All solder lug models recognized at 3A @ 125/250V AC or 0.4VA @ 28V AC/DC maximum;
UL File No. WOYR2.E44145; add “/U” to end of part number to order UL mark on switch;
C-UL File No. WOYR8.E44145; add “/C-UL” to end of part number to order C-UL mark on switch.
All solder lug models certified at 3A @ 125/250V AC or 0.4VA @ 28V AC/DC maximum;
CSA File Nos. 023535-0-000; add “/C” to end of part number to order CSA mark on switch.
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
08-08
NKK [ NIHON KAIHEIKI INDUSTRY CO. LTD. ]
