8/11

8. Precautions

1. Avoid the application of any stress to the resin portion.

2. Avoid any contact by a sharp metal nail or other materials with the resin portion.

3. This product should be secured firmly by fastening an M3 screw on both sides of the product.

Please be careful not to apply any stress to the product during the clamping operation.

please check thoroughly.

4. Insulation between the terminal section and the heat sink section of the LED is not covered

by warranty. With regard to insulation after this product has been assembled in an apparatus,

preventive action should be carried out by the customer.

5. For fixing this product to the outer heat sink, heat grease should be applied to the whole rear

surface so that the product can dissipate heat as a whole. Please pay attention to avoid product

deformation when conducting the clamping operation with heat grease in sheet form.

6. Handling of static electricity

- These products are sensitive to static electricity charge.

Please take measures to prevent any static electricity being produced such as the wearing of a

wristband or anti-static gloves when handling this product.

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

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

- ESD sensitivity of this product is 1000V (HBM, based on JEITA ED-4701/304).

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

whether the assembled LEDs are damaged by static electricity or not.

- It is easy to find static-damaged LEDs by a light-on test.

<Light-on test criterion>

Symbol

As the connection status could vary depending on materials of outer heat sink,

DATA SHEET

Condition

Judgmental criterion

up parallel circuit is unacceptable

CITILED

Name

CL-L251-MC6L1-C

CITIZEN ELECTRONICS CO.,LTD. JAPAN

Resin portion (Shaded area)

Recommended installation screw pitch

Thermal conduction materials

(Insulation)

Outer heart sink

Spring Washer (

≦

φ6mm)

M3screw (Insulation)

Plane washer (

≦

φ6mm)

13.08 mm

L251 consists of three blocks.

Ref.CE-P1178

05/11

R1(0711)