New Product Of NICHIA Upgrades Again

 On October 6, NICHIA unveiled the high high output UVC LED NC4S334BR, further demonstrating its commitment to UVC LED technology.

The new high output UVC LED NC4U334BR is 6.8*6.8mm and still uses 280nm band to maximize virus capability and maintain practical reliability. At the same time, it can generate 200mW radiation flux at 7.8W input power. Significantly increases the available virus killing power without sacrificing service life. It is one of the highest output UVC LED in the industry.

According to the official information, NC4U334BR’s high output can bring greater possibilities for industrial water treatment and air purification. Previously, the available radiation flux in a given space was limited, and because of the industrial scale traditionally associated with mercury lamps, the instantaneous on/off operation capability of LEDs significantly reduced standby power compared to the time required for mercury lamps to reach full power.

On Sept. 21, NICHIA also issues using high radiation flux 280nm NCSU434B UVC LED, has the highest power conversion efficient 3.5*3.5mm LED. In the typical input power under the condition of 350mA/5.7V, the typical radiation flux is 62mW. In addition, in high density installation, the radiation flux per unit area is about three times that of traditional products. At present, mass production has begun for a variety of bacterial and viral applications, particularly for industrial water and air applications.

UVC LED is one of the most popular sterilization methods, which is expected to completely change the effect of sterilization and disinfection, and may bring more safe sterilization facilities. This is a common understanding in the industry, and it is also an important transition road for UV disinfection from the current mercury lamp to UV LED disinfection in the future.

The last high output UVC LED NC4U334BR is designed to meet the market demand for industrial water treatment and air purification to a certain extent. Importantly, this small but efficient UVC LED can provide high radiation flux, high power. Compared to previous technology, the solution provides better system miniaturization and highly stable long-life performance.

NICHIA is committed to continue to focus on the development of deep ultraviolet LEDs with higher performance and reliability, and to help achieve a mercury-free and carbon-free society through energy conservation.

How to Store the UV LED Light Beads

 Correct Storage Method of Ultraviolet LED Lamp / UV LED Correct Storage Method

Conditions		Temperature	Humidity	Time
Storage	Before opening aluminum bag	≤30℃	≤90%RH	Within 1 year from delivery date
	After opening aluminum bag	≤30℃	≤70%RH	168hours
Baking		65±5℃	-	24hours

1.The storage/packaging requirements for this LED are comparable to JEDEC Moisture Sensitivity  Level (MSL) 3 or equivalent. NCHIA used IPS/JEDEC STD-020 as a reference to rate the MSL of this LED.

2.This LED uses a package that could absorb moisture. If the package absorbs moisture and is exposed to heat during soldering, it may cause the moisture to vaporize and the package to expand and the resulting pressure may cause internal delamination. This may cause the optical characteristics to degrade. To minimize moisture absorption in storage/transit, moisture-proof aluminum bags are used for the LEDs with a silica gel packet to absorb any air moisture in the bag. The silica gel beads turn blue to red as they absorb moisture.

3.Once the moisture-proof aluminum bag is open, ensure that the NICHIA Ultraviolet LED is soldered to a PCB within the range of the conditions above. To store any remaining unused LEDs, use a hermetically sealed container with silica gel desiccants. NICHIA recommends placing them back to the original moisture-proof bag and reseal it.

4.If the “After Opening” storage time has been exceeded or any pink silica gel beads are found, ensure that the LED are baked before use. Baking should only be done once.

5.This LED has gold-plated electrodes. If the LEDs are exposed to a corrosive environment, it may cause the plated surface to tarnish causing issues (i.e. solderability). Ensure that when storing LEDs, a hermetically sealed container is used. NICHIA recommends placing them back to the original moisture-proof bag and reseal it.

6.To prevent substance/gases from affecting the plated surface, ensure that the parts/materials used with the SMD UV LED Lamp Chips in the same assembly/system do not contain sulfur (e.g. gasket/seal, adhesive, etc.). If the plating is contaminated, it may cause issues (e.g. electric connection failures). If a gasket/seal is used, silicone rubber gaskets/seals are recommended. Ensure that this use of silicone does not result in issues (e.g. electrical connection failures) caused by low molecular weight volatile siloxane.

7.To avoid condensation, the LEDs must not be stored in areas where temperature and humidity fluctuate greatly.

8.Do not store the UV Light Emitting Diode Chips in a dusty environment.

9.Do not expose the LEDs to direct sunlight and/or environment over a long period of time where the temperature is higher than normal room temperature.