LITEON has loose packing and ammo packing (Tape and reel)
(1) Loose pack: 250, 500, 1000 units/bag.
(2) Ammo pack: 2000pcs/ box.

A lighting emitting diode (LED) is a semiconductor device that emits incoherent narrow spectrum light when electrically biased in the forward direction of p-n junction. The color of the emitted light depends on the composition and condition of the semiconducting material used, and can be infrared, visible, or near-ultraviolt.

Unit : candela, intensity is the ratio of flux by solid angle.

Major packages are 3mm lamp, 5mm lamp, Oval lamp, Piranha lamp and CBI.

SMD LED - surface- mount device LED.

TR is current transfer ratio, it can be defined CTR= I_C/I_F.

RANK MARK	CTR(%)
L	50 ~ 100
A	80 ~ 160
B	130 ~ 260
C	200 ~ 400
D	300 ~ 600
L or A or B or C or D	50 ~ 600

For special CTR rank can contact with LITEON. 

LITEON photo coupler maximum operation temperature is 110°C.

Isolation voltage uses to evaluate isolation capability of photo coupler. It means isolation voltage between input and output of photo coupler.