General Specifications Electrical Capacity (Resistive Load) Logic Level: Other Ratings Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Nominal Operating Force: Contact Timing: Travel: Materials & Finishes Plunger: Bushing: Case Housing: Support Bracket: Movable Contact: Stationary Contacts: Terminals: Environmental Data Operating Temp Range: Humidity: Vibration: Shock: Process Sealed Subminiature Antistatic Pushbuttons Soldering: Cleaning: Standards & Certifications Flammability Standards: 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. 50 milliohms maximum 500 megohms minimum @ 500V DC 500V AC minimum for 1 minute minimum 50,000 operations minimum (momentary) 25,000 operations minimum (alternate action) 50,000 operations minimum (momentary) 25,000 operations minimum (alternate action) 2.55N (momentary); 2.94N (alternate action) Nonshorting Momentary: Pretravel .028” (0.7mm); Overtravel .016” (0.4mm); Total Travel .043” (1.1mm) Alternate: Pretravel .039” (1.0mm); Overtravel .039” (1.0mm); Total Travel .079” (2.0mm) Polyacetal Carbon blended polyamide Glass fiber reinforced polyamide Tin plated phosphor bronze Phosphor bronze with gold plating Copper alloy with gold plating Copper alloy with gold plating –30°C through +85°C (–22°F through +185°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/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction) 49.03N (11.2 lbf) maximum downward force on actuator; actuator must be in UP position to remove cap from alternate action models Wave Soldering Recommended: See Profile A in Supplement section. Manual Soldering: See Profile B in Supplement section. Automated cleaning. See Cleaning specifications in Supplement section. UL94V-0 available The BB Series pushbuttons have not been tested for UL recognition or CSA certification. These switches are designed for use in a low-voltage, low-current, logic-level circuit. When used as intended in a logic-level circuit, the results do not produce hazardous energy.

Distinctive Characteristics Subminiature size (1/3 size of Series M switches) saves space on PC boards. Specifically developed for logic-level applications. Available in momentary and maintained circuits. Process Sealed Subminiature Antistatic Pushbuttons Industry’s smallest alternate action (maintained) pushbutton with latchdown feature providing visible, audible, and tactile feedback. Antistatic superstructure, consisting of the carbon impregnated bushing and the support bracket, prevents static discharge to the contacts. Static electricity from an operator’s touch travels from the actuator...

Process Sealed Subminiature Antistatic Pushbuttons TYPICAL SWITCH ORDERING EXAMPLE Straight with Bracket Right Angle with Bracket Vertical with Bracket Straight Long * Bracketed models are ESD protected Alternate Action has Latchdown. BB16 has a Double Pole case. Tactiles Tilt DESCRIPTION FOR TYPICAL ORDERING EXAMPLE SPDT ON-(ON) Circuit Right Angle PC Terminals .213” (5.4mm) Long White Plunger

Process Sealed Subminiature Antistatic Pushbuttons POLES & CIRCUITS Note: Terminal numbers are not actually on the switch. Standard Plunger Color: White Normal Position Contact factory for other colors and lengths. Latchdown Position PC TERMINALS Use of a support bracket is recommended to increase PCB mounting strength and stability. Both single pole and double pole alternate action models have double pole bases. Right Angle with Bracket Vertical with Bracket Straight Long SLIP-ON CAPS AT475 .201” (5.1mm) Diameter Cap Material: Polyamide Colors Available: Material: Polyamide See Typical Switch...

Process Sealed Subminiature Antistatic Pushbuttons TYPICAL SWITCH DIMENSIONS Single Pole Momentary & Alternate Double Pole Double Pole Momentary & Alternate www.nkk.com

Process Sealed Subminiature Antistatic Pushbuttons TYPICAL SWITCH DIMENSIONS Momentary & Alternate www.nkk.com Double Pole Momentary & Alternate Double Pole Single Pole