Membrane Switch Keypads Target Interface Designs
Said to replace multiple mechanical switches, soldered wires, and cable assemblies, NKK Switches’ FM Series membrane switch keypads perform in human-machine interface designs. The dot-illuminated configurations offer 12 or 16 keys, pre-configured legends on embossed keypads; and stroke from 0.5 mm to 1.2 mm. The non-illuminated models present 4 or 16 keys, card insertion capability that supports customizable legends with characters being able to be printed or drawn on the legend card; and stroke from 0.4 mm to 1 mm. The keypads have adhesive backing, actuation domes, nominal operating force from 1 N to 6 N, and a min. operational life of 1,000,000 operations. The devices are rated at 20 mA at 24VDC with a min. dielectric strength of 250 VAC for one minute min. and an operating temperature range from 5°F to 122°F. The products serve office, communication, automation, electronic, and entertainment equipment.