This part is a kind of semiconductor called SMD5050.

Function of this product has SMD LED.

Manufacturers : DREAMLAND

Image and pinout :

Some of the text within the PDF file :

Technical data sheet SMD 5050 RGB Features: ● ● ● ● ● http://www.yuanlei-led.com High efficiency; Reliable and Robust; The product itself will remain within ROHS compliant; The series is specially designed for applications requiring higher brightness; The LED lamps are available with different colors and intensities; : Dimensional drawing drawing: All dime nsio ns are in millimeter Tolerance is ±0.25mm(0.10″)unless otherwise noted : Shape Specification Specification: No. ITEM SPEC OR DESCRIPTION ◆ ◆ No change color No Disrepair Scratch（length ≤2.0mm,Width≤0.25mm） macula（≤0.25mm and ≤2EA in Encapsulation reverse） bubble/氣泡（≤0.3mm and ≤2EA Encapsulation reverse） No bottom crook No oxidation No electropolar reverse No Encapsulation reverse N [ ... ]

SMD5050 PDF Datasheet Download