CN-0024 Change Notice MS & SS Illuminated Series LED Specifications Type of Change: Engineering Product Part Number Appearance MS Illuminated Slide SS Illuminated Slide The new LED specifications for MS and SS Illuminated slides supersede all previous specifications. Changes affect all models in MS LED Illuminated Series, and all SS LED Illuminated, both standard and custom switches. LED Specifications From Current LED Specifications for MS and SS Illuminated Isolated Single Element (+) (-) To New LED Specifications for MS and SS Illuminated C E F C E F Red Yellow Green Red Yellow Green Forward Peak Current I FM 20mA 20mA 20mA 30mA 30mA 25mA Continuous Forward Current IF 16mA 16mA 16mA 16mA 16mA 16mA Forward Voltage (I F = 16mA) VF 2.07V 2.15V 2.16V 1.98V 2.06V 2.16V Reverse Peak Voltage VRM 3V 4V 4V 5V 5V 5V Current Reduction Rate Above 25°C ∆ IF 0.40mA/°C 0.42mA/°C 0.33mA/°C 0.27mA/°C Ambient Temperature Range for MS –10°C ~ +55°C –15°C ~ +60°C Ambient Temperature Range for SS –15°C ~ +60°C –15°C ~ +60°C LEDs are an integral part of the switch and not available separately. The lamp circuit is independent of switch operation. Electrical specifications are determined at a basic temperature of 25°C. If the source voltage exceeds rated voltage, a ballast resistor is required. The resistor value can be calculated by using the formula shown here. R + IF Anode VF E Cathode – R = Where: R = E = VF = IF = E – VF IF Resistor Value (Ohms) Source Voltage (V) Forward Voltage (V) Forward Current (A) Availability MS and SS Illuminated Series with new LED specifications are available immediately. www.nkkswitches.com 1-877-2BUYNKK 1-877-228-9655 Engineering Department 7850 East Gelding Drive • Scottsdale, AZ 85260 Phone 480-991-0942 • Fax 480-998-1435 7/12/07