CN-0226 Change Notice KP Series Illuminated Pushbuttons Change of Super Bright Bicolor LED Specifications for KP Series Type of Change: Engineering Product Part Number Appearance All models of KP01 and KP02 Pushbuttons with super bright bicolor LEDs will have a change to the specifications for both Red and Green. The change will effect all standard and custom products for the KP Series. KP01 Series KP02 Series SUPER BRIGHT BICOLOR LED SPECIFICATIONS ATTENTION ELECTROSTATIC SENSITIVE DEVICES (+) COM Green The electrical specifications shown are determined at a basic temperature of 25°C. Amber can be achieved by simultaneous illumination of Red and Green. After Change 6 CF (–) L1 Red KP Series illuminated pushbuttons are electrostatic sensitive. Before Change (–) L2 Colors Red Green Red Green Unit * 253 ~ 270 * 223 ~ 272 290 270 mcd Standard Luminous Intensity IV Maximum Forward Current I FM Typical Forward Current IF Typical Forward Current for Alternating Legends IF Forward Voltage VF 2.1 Maximum Power Dissipation PD Maximum Reverse Voltage VRM Wavelength at Maximum Emission λ Current Reduction Rate Above 25°C ∆I F Ambient Temperature Range 6 CF 30 25 30 25 (25 for Amber) (22 for Amber) (25 for Amber) (22 for Amber) 15 15 mA 15 5 mA 25 15 mA 3.2 2.0 3.1 V 63 80 72 88 mW 5 5 5 7 V 630 ~ 640 520 ~ 535 620 ~ 630 528 ~ 538 nm 0.40 0.36 0.40 0.36 mA/°C –25 ~ +50 –25 ~ +50 °C * Measured Value (Reference Data) R Notes • LEDs are an integral part of the switch and are not available separately. E • The LED circuit is isolated and requires an external power source. • If the source voltage exceeds the rated voltage, a ballast resistor is required. The resistor value can be calculated by using the formula shown here. • The changes to KP Series LEDs do not affect any external dimensions of the switches. • Contact the factory if further details are needed. + IF Anode VF – R = Where: R = E = VF = Cathode IF = E – VF IF Resistor Value (Ohms) Source Voltage (V) Forward Voltage (V) Forward Current (A) Effective Date Changes to KP Series LEDs will be effective with June 2014 production. http://www.nkkswitches.com • 1.877.2BUYNKK (228.9655) 7850 East Gelding Drive • Scottsdale, AZ 85260 • Telephone 480.991.0942 • Fax 480.998.1435 2014/06/06 Engineering Department