Datasheet L251 (Citizen) - 9

SPECIFICATIONS 9/9 Precautions (continued) 6. Please be aware that this product should not come into contact with other parts in assembled status. 7.Drive circuit - A constant current circuit is recommended as a drive circuit. And when two or more LED packages are connected, the series connection between each package is recommended. - 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. 8. Heat generation - 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. Please ensure that heat generation is not in excess of the absolute maximum rating. (Refer to 4-1 Performance) - Factors responsible for an increase in temperature include heat generation attributed to ambient temperature conditions or power dissipation. Thus, drive conditions should be taken into consideration, depending on ambient temperature (Ta). 9. Recommended soldering - Soldering operation should be performed within 3.5 seconds per land using a soldering iron of 40W or lower. The temperature of a soldering iron should be adjusted 350C or lower. - No external force is applied to sealing resin during soldering operation. - Please do not handle a product until it returns to a normal temperature. Note: This product is not adaptable to reflow process. 10. Other - This product complies with RoHs directives. - This product is intended for the application in general electronic devices (such as office automation equipment, communication devices, audio-video equipment, home electrical appliances, measurement hardware and others). In cases where this product is used for the applications that requires high reliability or could directly affect human life or health due to failure or malfunction (aerospace hardware, medical equipment, atomic control equipment and others), please consult with our sales representatives beforehand. - Our warranty does not cover situations where this product undergoes secondary fabrication such as changes in shape. -An agreement of formal product specifications is required prior to mass production. - The specifications and appearance of this product are subject to change without advanced notice. Approved Checked Drawn Symbol CITILED Name CL-L251-MC6L1 Drawing No Mark Date Description Appro. CITIZEN ELECTRONICS CO.,LTD. Ref.CE-P407 04/09