Series AB Process Sealed Subminiature Pushbuttons
General Specifications
Electrical Capacity (Resistive Load)
Logic Level: 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.
C
Other Ratings
Contact Resistance: 50 milliohms maximum
Insulation Resistance: 500 megohms minimum @ 500V DC
Dielectric Strength: 500V AC minimum for 1 minute minimum
Mechanical Life: 50,000 operations minimum
Electrical Life: 50,000 operations minimum
Nominal Operating Force: 2.55N
Contact Timing: Nonshorting (break-before-make)
Travel: Pretravel .028 (0.7mm); Overtravel .016 (0.4mm); Total Travel .043 (1.1mm)
Materials & Finishes
Plunger: Polyacetal
Case Housing: Glass fiber reinforced polyamide
Support Bracket: Tin plated phosphor bronze
Movable Contact: Phosphor bronze with gold plating
Stationary Contacts: Brass with gold plating
Terminals: Brass with gold plating
Environmental Data
Operating Temp Range: 30C through +85C (22F through +185F)
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: 49.03N (11.2 lbf) maximum downward force on actuator
PCB Processing
Soldering: Wave Soldering Recommended: See Profile A in Supplement section.
Manual Soldering: See Profile B in Supplement section.
Cleaning: Automated cleaning. See Cleaning specifications in Supplement section.
Standards & Certifications
The AB 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.
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Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesProcess Sealed Subminiature Pushbuttons Series AB
Distinctive Characteristics
Subminiature size (1/3 size of Series M switches) saves space on PC boards.
C
Specifically developed for logic-level applications.
Totally sealed body construction prevents contact contamination
and allows time- and money-saving automated soldering
and cleaning.
Award-winning STC contact mechanism with benefits
unavailable in conventional mechanisms: smoother,
positive detent actuation, increased contact stability
and unparalleled logic-level reliability. (Additional
STC details in Terms & Acronyms; see Supplement
section.)
Molded-in, epoxy sealed or ultrasonically welded
terminals lock out flux, solvents, and other contaminants.
.100 x .100 (2.54mm x 2.54mm) terminal spacing
conforms to standard PC board grid spacing.
Matching indicators available.
Actual Size
www.nkkswitches.com C7
Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles