Subminiature Pushbuttons
Series HB
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
General Specifications
Electrical Capacity (Resistive Load)
Power Level (code W):
0.1A maximum @ 30V AC/DC
Other Ratings
Contact Resistance:
50 milliohms maximum
Insulation Resistance:
100 megohms minimum @ 500V DC
Dielectric Strength:
500V AC minimum for 1 minute minimum
Mechanical Life:
100,000 operations minimum
Electrical Life:
50,000 operations minimum
Nominal Operating Force:
3.43N
Contact Timing:
Nonshorting (break before make)
Travel:
Pretravel .087” (2.2mm); Overtravel .031” (0.8mm); Total Travel .118” (3.0mm)
Materials & Finishes
Housing:
Glass fiber reinforced polyamide
Base:
Glass fiber reinforced polyamide
Movable Contact:
Phosphor bronze with silver plating
Stationary Contacts:
Phosphor bronze with silver plating
Common Terminal:
Phosphor bronze with silver plating
End Terminals:
Phosphor bronze with silver plating
Lamp Terminals:
Phosphor bronze with silver plating
Environmental Data
Operating Temp Range:
–25°C through +50°C (–13°F through +122°F)
Humidity:
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
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
Shock:
50G (490m/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
Installation
Mounting Torque:
0.49Nm (4.34 lb•in) maximum for round mounting nut
Cap Installation Force:
9.8N (2.2 lbf) maximum downward force on cap
Soldering Time & Temperature:
4 seconds maximum @ 390°C maximum for manual soldering
Note: Find additional processing data in Supplement section.
Standards & Certifications
UL & C-UL
All models recognized at 0.1A @ 30V AC/DC;
Recognized:
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 “/UC” to end of part number to order C-UL mark on switch.
R
R
3-05