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Data Sheet

SMLP34 Series

2014.11 - Rev.I

6/8

l

Precaution (Surface Mount Device)

1.Storage

If the product is heated during the reflow under the condition of hygroscopic state, it may vaporize and expand

which will influence the performance of the product. Therefore, the package is waterproof. Please use the

product following the conditions:

• Using Conditions

Classification

Temperature

Humidity

Expiration Date

Remark

1

Before using

5 to 30ºC

30 to 70%RH

Within 1 year

from Receiving Storage with waterproof package

2

After opening

package

5 to 30ºC

Below 70%RH

Within 168h Please storing in the airtight container with

our desiccant (silica gel)

• Baking

Bake the product in case of below:

1

The expiration date is passed.

2

The color of indicator (silica gel) turned from blue to colorless or from green to pink.

(Even if the product is within the expiration date.)

• Baking Conditions

Temperature

Time

Humidity

60±3ºC

12 to 24h

Below 20%RH

Remark

• Bake products in reel.

• Reel and embossed tape are easy to be deformed when baking, so please try not to

apply stress on it.

• Recommend bake once.

2.Application Methods

2-1. Precaution for Drive System and Off Mode

Design the circuit without the electric load exceeding the ABSOLUTE MAXIMUM RATING that applies on the

products. If drive by constant voltage, it may cause current deviation of the LED and result in deviation of

luminous intensity, so we recommend to drive by constant current. (Deviation of VF Value will cause deviation of

current in LED.) Furthermore, for off mode, please do not apply voltage neither forward nor reverse. Especially,

for the products with the Ag-paste used in the die bonding, there’s high possibility to cause electro migration and

result in function failure.

2-2. Operation Life Span

There’s possibility for intensity of light drop according to working conditions and environments (applied current,

surrounding temperature and humidity, corrosive gases), please call our Sales staffs for inquiries about the

concerned application below.

1

Longtime intensity of light life

2

On mode all the time

2-3.Applied Stress on Product

The top of the LED is very soft, which the silicon resin is used as sealing resin. Therefore, please pay attention

to the overstress on it which may influence its reliability.

2-4.Usage

The Product is LED. We are not responsible for the usage as the diode such as Protection Chip, Rectifier,

Switching and so on.