Technical Data Sheet

3474/B1DB-AFHA/X/MS

Everlight Electronics Co., Ltd.

http\\:www.everlight.com

Rev 1

Page: 6 of 7

Device Number : DLE-347-004

Prepared date: 11-01-2005

Prepared by: Grace Shen

Notes

1. Above specification may be changed without notice. EVERLIGHT will reserve authority on

Material change for above specification.

2. When using this product, please observe the absolute maximum ratings and the instructions for

using outlined in these specification sheets. EVERLIGHT assumes no responsibility for any

damage resulting from use of the product which does not comply with the absolute maximum

ratings and the instructions included in these specification sheets.

3. These specification sheets include materials protected under copyright of EVERLIGHT

corporation.

Please

don’t

reproduce

or

cause

anyone

to

reproduce

them

without

EVERLIGHT’sconsent.

4. Below the zener reference voltage Vz, all the current flows through LED and as the voltage rises

to Vz, the zener diode “breakdown." If the voltage tries to rise above Vz current flows through

the zener branch to keep the voltage at exactly Vz.

5. When the LED is connected using serial circuit, if either piece of LED is no light up but current

can’t flow through causing others to light down. In new design, the LED is parallel with zener

diode. if either piece of LED is no light up but current can flow through causing others to light

up.