LED lamp factory commonly used LED SMD beads specifications

     0603, 0805, 1210, 3528, 5050 is refers to the LED lamp factory commonly used LED SMD beads size (inch / Metric), such as 0603 is 0.06 inches in length, width is 0.03 inches. But note that the 3528 and 5050 units are metric.
     Next is a detailed introduction of these specifications:
     0603: conversion to metric is 1608, namely LED SMD beads length is 1.6mm, width is 0.8mm. It is referred to as the 1608 in the industry, the british system is 0603.
     0805: conversion to metric is 2012, LED element length is 2.0 mm, the width is 1.2mm. It is referred to as the 2012 in the industry, the british system is 0805.
     1210: converted to the metric system is 3528, which means that the length of the LED element is 3.5mm, the width is 2.8mm. It is referred to as the 3528 in the industry, the british system is 1210.
     3528: This is the metric, element length is 3.5mm, width is 2.8mm. It is referred to as the 3528 in the industry.
     5050: This is the metric, element length is 5.0mm, width is 5.0mm. It is referred to as the 5050 in the industry.
     Currently most of the LED lamp factory to adopt LED SMD beads, 3528 and 5050 and 3535 and 5630 is accounted for the majority, there are many manufacturers will 3528 and 5050 and 3535, SMD LED for automotive lighting.

The above article from Sourcechip official website (http://www.sc-ledlights.com/) yjblog1512
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