The FM-Series includes illuminated 12- and 16-key membrane keypads with adhesive backing for easy mounting, actuating domes providing tactile feedback, and single-element amber LEDs with a forward current of 20 mA and maximum forward current of 30 mA. These keypads feature embossed legends on the overlay, a nominal operating force of 1.0N to 6.0N, and an operational life of 1,000,000 cycles. The illuminated models have a stroke range of 0.5mm to 1.2mm and operate within a temperature range of -15°C to +50°C. The switch circuit matrix supports pin configurations of 8 pins for both 12- and 16-key variants, with optional insertable legend cards for customization. External power and a ballast resistor are required for LED operation.
FM-Series 12 and 16 Key Illuminated Keypads
FM-Series 4 and 16 Key Non-Illuminated Keypads
| NKK Switches | NKK Switches | |
|---|---|---|
| Product Category | Industrial Keypads | Industrial Keypads |
| Product Number | FM-Series | FM-Series |
| Product Name | 12 and 16 Key Illuminated Membrane Keypads | 4 and 16 Key Membrane Keypads |
| Standard Keypad Size | 3x4; 4x4 (optional feature) | 1x4; 4x4 (optional feature) |
| Mounting | Front Panel | Front Panel |
| Keypad Style | Full Travel Keypad Buttons | Full Travel Keypad Buttons |
| Connector Style | Ribbon Cable w/ Connector | Ribbon Cable w/ Connector |
