Featuring the Direct Mountable Chip technology the new E17A and E21A LED series from Nichia are direct mountable, packageless, chip scale LEDs which reduce total system cost and increase performance at the same time.
The Direct Mountable Chip technology slashes at one major element of system cost: heat management. With thermal resistance of only 0.3 (℃/W junction to Ts measuring point), heat sinks can be smaller or higher performance can be obtained without increasing the heat sink.
Compared with 1-3 Watt LEDs from other manufactures the NVSWE21A (304lm@5000K and 2.1W) and the NCSWE17A (152lm@5000K and 1.05W) are considerably more effective at transferring the heat away from the LED chip.
In practical terms, for example with cooling element with a total thermal resistance of 15℃/W (Tc measurement point to ambient temperature) we can obtain up to 30% increase in the luminous flux from using the NVSWE21A compared to a LED with similar characteristics but with 5℃/W thermal resistance (Junction to Ts measuring point) and up to 80% increase if the same resistance would be 10℃/W, without any decrease in lifetime.
Further savings at the system cost can be obtained by product miniaturization which is possible by increasing the luminous flux possible from a square millimeter of LED package. This relationship between LED light and size is called flux density.
Direct Mountable Chip technology leads to an increase of flux density by up to 95% compared with the best alternative LED designs. From only 4.41 mm² (2.1 x 2.1 mm) the NVSWE21A has a typical flux of 304lm@5000K and 2.1W.
In combination with low thermal resistance, high flux density can reduce product dimensions and therefore cost significantly. Up to 80% of the cost of a LED product result from the case, cooling, driver and optics of the lighting fixture.
For example, if a smaller product has 15% less material cost, this will have the same impact in the price if the industry slashing LED price by 75%. As a bonus, less material use is good for the environment.
While further reduction in unit price per LED is desirable, the approach to achieve it with research and invention is the better choice. Direct Mountable Chip also empowers luminaire designers to create designs never before possible because LEDs can be clustered very closely together with conventional SMT and reflow production processes. Due to the seemingly borderless design, a LED package of custom size can be "created" from clustering Direct Mountable Chip Nichia LEDs.
Currently, the Direct Mountable Chip is used in the following Nichia LEDs
You can purchase the Nichia CSP LEDs in our shop, as single LEDs or SmartArray clusters.
From only 4.41 mm² (2.1 x 2.1 mm) the NVSWE21A has a typical flux of 304lm@5000K and 2.1W.
