Datasheet

Series JB
Low Profile Washable Tactile Switches
NKK Switches • email: [e-mail] • Phone [phone] • Fax [phone] www.nkkswitches.com
Electrical Capacity (Resistive Load)
Power Level: 50mA @ 24V DC maximum for Standard Operating Force models
125mA @ 24V DC maximum for High Operating Force models
Other Ratings
Standard Operating Force High Operating Force
Contact Resistance: 50 milliohms maximum 50 milliohms maximum
Insulation Resistance: 500 megohms minimum @ 250V DC 500 megohms minimum @ 250V DC
Dielectric Strength: 250V AC minimum 250V AC minimum
Mechanical Life: 5,000,000 operations minimum 1,000,000 operations minimum
Electrical Life: 5,000,000 operations minimum 1,000,000 operations minimum
Nominal Operating Force: 180 grams (JB15) 270 grams (JB15H)
Contact Bounce: 0.1 millisecond maximum 0.1 millisecond maximum
with normal hand operation with normal hand operation
Total Travel: .250mm (.010") .300mm (.012")
Materials & Finishes
Actuator: Glass fiber reinforced polyester
Case: Glass fiber reinforced polyamide
Seal: Nitrile butadiene rubber
Base: Glass fiber reinforced polyester
Movable Contacts: Beryllium copper with silver plating
Stationary Contacts: Brass with silver plating
Terminals: Brass with silver plating
Mounting Bracket: Phosphor bronze with tin plating
Environmental Data
Operating Temp Range: -25°C through +70°C (-13°F through +158°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 acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
Installation
Soldering Time & Temperature: 3 seconds @ 350°C manual soldering or 5 seconds @ 270°C solder pot
Automated soldering is highly recommended.
Process Seal: See Supplement Index (page Z1) for specific processing data.
GENERAL SPECIFICATIONS
8-01