LED Leuchten Shop

Top Rank Q00 ex stock available!

Lumileds sets new standards in LED lighting with the just released K2. This LUXEON product is that new ultrabright LED which will dwarf all other former high power LEDs. The warm-white version emitts at least 30,6 lumens at ~3100 kelvin and an electric input of 3W for example. That beats all former emissions of Lumileds products by 15% min.

One more big advantage is the extremly high barrier temperature of 185°C in combination with the low thermal resistance of 9°C/W. This properties allow designers to develop their lighting solutions with very small heat sinks and needs of space.

The maximum acceptable forward current of 1500mA is a further advantage. Fabrication also likes surface mountable and pb-free parts that can be mounted long after opening the packing units.

The JEDEC clamminess level of 2a allows the Luxeon K2 to be mounted within 4 weeks from the moment of opening the bags without re-conditioning the components. Comparable parts have to be mounted within 72 hours after opening and are classified for JEDEC level 4 at the best.

Successful usage of high power LEDs:

Heat management

Applications with high power LEDs need enduring, adequate and plane heat conduction from the first moment of use. It is very important and neccessary to get the heat off the devices to ensure the maximum light output, lifetime and efficiancy.

Drive management

LEDs should be run with a constant current in addition to the manufacturers recommendations. To ensure this we recommend to take constant current power supplies because resistors are always a risk factor in high power LED applications.

EMC protection

LEDs are sensitive against heat and electric charge. Please avoid any kind of short circuits or electric discharge to the illuminant. The chip can be damaged or even destroyed.

Storage / JEDEC level

The storage temperature should be from -30°C up to + 80°C in dry ambience. After opening a sealed bag the content should be mounted rapidly. Once absorbed humidity can be removed by tempering the LEDs in some cases. More information can be found in the manufacturers datasheets or on the manufacturer homepages.

Soldering conditions

Each LED has its own soldering conditions that the user should pay attention to. After the launched lead free processing specifications many standarts have changed. Information about recommended soldering can be found in the manufacturers datasheets or on the manufacturer homepages.

Resistor for 5V-Betrieb:	5 Ohm / 0.55 W
Resistor for 9V-Betrieb:	16 Ohm / 1.95 W
Resistor for 12V-Betrieb:	25 Ohm / 3 W
Resistor for 14V-Betrieb:	30 Ohm / 3.7 W

individual resistor calculation

individual resistor calculation