9/11

8. Precautions (continued)

Symbol

Name

CL-L251-C4N1-C

CITIZEN ELECTRONICS CO.,LTD. JAPAN

CITILED

ambient temperature conditions or power dissipation. Thus, drive conditions should be

- Factors responsible for an increase in temperature include heat generation attributed to

Please ensure that heat generation is not in excess of the absolute maximum rating.

(Refer to 4-1 Performance)

taken into consideration, depending on ambient temperature (Ta).

(Recommended condition in a case of lead-free solder condition)

- Soldering shall be implemented using a soldering bit of 40W or less with a temperature

11. Recommended soldering condition (This product is not adaptable to reflow process)

- As this product is designed with consideration of the heat release property of module,

a heat release design is required to use this product efficiently.

8. Please be aware that this product should not come into contact with any other parts

- Please design a circuit that prevents any reverse voltage (excess current) from being

applied to this product instantaneously when the circuit is ON or OFF.

7. Lighting at a low current

When a minimum current is applied, LED dice may look different in their brightness due to

in assembled status.

DATA SHEET

- Contacts number of soldering bit should be within twice for each terminal as a correction.

A minimum current value of lighting of all dice is 40mA.

9. Drive circuit

between each package is recommended.

And when two or more LED packages are connected, the series connection

- Manual soldering

350°C or less within 3.5 seconds for one land.

- A constant current circuit is recommended as a drive circuit.

- No external force shall be applied to resin part during soldering.

* Citizen Electronics cannot guarantee if usage exceeds this recommended conditions.

Please use it after sufficient verification is carried out on your own risk if necessary.

- Regarding soldering correction, above conditions shall be used.

- Next process of soldering should be carried out after the product has returned to ambient

- For soldering correction

10. Heat generation

the individual difference of the LED element, and it is not a failed product.

Ref.CE-P1170

05/11

R1(0711)