LIGITEK ELECTRONICS CO.,LTD.

Property of Ligitek Only

Drive Method:

LED is a current operated device, and therefore, requirer some kind of current limiting incorporated into

the driver circuit. This current limiting typically takes the form of a current limiting resistor placed in series

with the LED.

Consider worst case voltage variations than could occur across the current limiting resistor. The forwrd

current should not be allowed to change by more than 40% of its desired value.

(A) Recommended circuit.

(B) The difference of brightness between LED could be found due to the VF-IF characteristics of LED.

ESD(Electrostatic Discharge):

Static Electricity or power surge will damage the LED. Use of a conductive wrist band or anti-electrosatic

glove is recommended when handing these LED. All devices, equipment and machinery must be properly

grounded.

Cleaning:

Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LED.

Circuit model A

LED

LED

Circuit model B

Precautions For Use:

Storage time:

2.Once the package is opened, the products should be used within a week.

Otherwise, they should be kept in a damp proof box with descanting agent.

Considering the tape life, we suggest our customers to use our products within

a year(from production date).

they should be treated at 60 ±

℃

PART NO. LDBK9UG9553/R9-B01

11/12

Page