16.02.2012

UVLED-365-330-SMD

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Reflow soldering should not be done more than two times.

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When soldering, do not put stress on the LEDs during heating.

3. Static Electricity

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The LEDs are very sensitive to Static Electricity and surge voltage. So it is recommended

that a wrist band or an anti-electrostatic glove be used when handling the LEDs.

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All devices, equipment and machinery must be grounded properly. It is recommended that

precautions should be taken against surge voltage to the equipment that mounts the LEDs.

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When inspecting the final products in which the LEDs were assembled, it is recommended to

check wheter the assembled LEDs are damaged by staticelectricity or not. It is easy to find

static-damaged LEDs by a light-on test or a VF test at a lower current (below 1mA is

recommended). The LEDs should be used the light detector etc. when testing the light-on.

Do not stare into the LEDs when testing.

4. Heat Generation

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Thermal design of the end product is of paramount importance. Please consider the heat

generation of the LED when making the system design. The coefficient of temperature

increase per input electric power is affected by the thermal resistance of the circuit board and

density of LED placement on the board, as well as other components. It is necessary to

avoid intense heat generation and operate within the maximum ratings given in the

specification.

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The operating current should be desided after considering the ambient maximum

temperature of LEDs.

5. Storage

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The LEDs should be stored at 30°C or less and 90%RH or less after being shipped and

should be used wihin 1 year. When you want to store these LEDs, moisture proof packaging

with absorbent material (silica gel) is recommended.

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LED electrodes are gold plated. The gold surface may be affected by environments which

contain corrosive substances. Please avoid conditions which may cause the LED to corrode,

tarnish or discolor. This corrosion or discoloration may cause difficulty during soldering

operations. It is recommended that the LEDs be used as soon as possible.

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Please avoid rapid transistions in ambient temperature, especially in high humidity

environments where condensation can occur.