NKK Switches offers new FR series of rotary switches

Tag : rotary switches

The newly designed FR series replaces NKK's DR series rotaryswitches and incorporates the best characteristics of NKK's rotarydevices.

The FR series of binary coded DIP rotaries are environmentallyfriendly devices and meet the RoHS directive restricting the use ofhazardous substances. The heat resistant resin materials areUL94V-0 and suited to lead-free solder processing applicationsincluding vapor phase and infrared convection reflow soldering forSMD option.

The FR series of DIP rotaries offer compact dimensions and a lowprofile allowing for high density mounting and close stacking of PCboards. Available in real or complement codes, decimal orhexadecimal configurations, the FR series can be specified inthrough-hole or SMD models. NKK said that highly visible and easyto read legends use arrows to indicate position and providetrouble-free code setting. Color-keyed actuators identify codes.Electrical capacity switching rating is 100mA @ 5V DC; nonswitchingrating is 100mA @ 50V DC. The cam activated movable contact andgold contacts ensure contact reliability and continuity while thedetent mechanism gives crisp, positive action providing accurateswitch setting. Actuators are fully rotational and can be operatedeither clockwise or counterclockwise.

Through-hole devices can be specified with screwdriver or shaftactuators with straight or right angle mounts. Terminal spacing instraight PC through-hole is .100" between pins and .300" betweenrows. Packaging includes stick tube for through-hole versions andtape/reel for SMD. Right angle versions are available in twodifferent footprints. The standard footprint is .100" between pinsand .100" between rows. A new option of .100" between pins with.200" between rows is available to facilitate change over designsfrom DR series footprints. Crimped terminals ensure secure PCmounting and prevent the FR devices from dislodging duringsoldering.

SMD versions are straight mount with screwdriver actuators.Gull-winged terminals deliver mechanical stability during solderingand simplify solder joint inspection. The co planarity tolerancezone is .0059" (0.15mm) maximum, the allowable distance between allconsidered surfaces in two parallel planes. Optional snap-on knobsare available for screwdriver actuated models and feature a blackknob with a transparent flange, the company noted in a release.
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