NICHIA STS-DA1-5625 <Cat.No.190328>

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(7) Cleaning

● Do not wipe/clean the LEDs with a damp cloth soaked in water or solvents (e.g. benzine, thinner, etc.).

● If required, use isopropyl alcohol (IPA). If water or other solvent is used, it may cause issues. Before using the solvent, ensure that

sufficient verification is performed to ensure that the solvent does not adversely affect the LEDs. In addition, the use of CFCs such

as Freon is heavily regulated.

● When a foreign substance (e.g. dust, debris, loose materials, etc.) adheres to the LEDs, wipe it off with a damp well-squeezed

cloth that was soaked only in isopropyl alcohol (IPA).

● Do not wipe the emitting surface. Otherwise, it may result in excessive pressure to the emitting surface causing issues (e.g. wire

to deform, the encapsulating resin to become damaged, the color to change, etc.). If wiping the emitting surface is necessary,

ensure that sufficient preliminary verification is performed to ensure that there are no issues; wipe the emitting surface at the

customer’s risk.

● Do not clean the LEDs with an ultrasonic cleaner. If cleaning must be done, ensure that sufficient verification is performed by using

a finished assembly with LEDs to determine cleaning conditions (e.g. ultrasonic power, LED position on the PCB assembly) that do

not cause an issue.

(8) Eye Safety

● There may be two important international specifications that should be noted for safe use of the LEDs: IEC 62471:2006

Photobiological safety of lamps and lamp systems and IEC 60825-1:2001 (i.e. Edition 1.2) Safety of Laser Products - Part 1:

Equipment Classification and Requirements. Ensure that when using the LEDs, there are no issues with the following points:

- LEDs have been removed from the scope of IEC 60825-1 since IEC 60825-1:2007 (i.e. Edition 2.0) was published. However,

depending on the country/region, there are cases where the requirements of the IEC 60825-1:2001 specifications or

equivalent must be adhered to.

- LEDs have been included in the scope of IEC 62471:2006 since the release of the specification in 2006.

- Most Nichia LEDs will be classified as the Exempt Group or Risk Group 1 according to IEC 62471:2006. However, in the case

of high-power LEDs containing blue wavelengths in the emission spectrum, there are LEDs that will be classified as Risk

Group 2 depending on the characteristics (e.g. radiation flux, emission spectrum, directivity, etc.)

- If the LED is used in a manner that produces an increased output or with an optic to collimate the light from the LED, it may

cause damage to the human eye.

● If an LED is operated in a manner that emits a flashing light, it may cause health issues (e.g. visual stimuli causing eye discomfort).

The system should be designed to ensure that there are no harmful effects on the human body.