This part is a kind of semiconductor called MR5060-xxx.

Function of this product has PCB MOUNT LED INDICATORS.

Manufacturers : QT

Image and pinout :

Some of the text within the PDF file :

PCB MOUNT LED INDICATORS Page 1 of 6 PACKAGE DIMENSIONS .045 (1.14) DESCRIPTION For right-angle and vertical viewing, the QT Optoelectronics LED circuit board indicators come in T-3/4, T-1 and T-1 3/4 lamp sizes, and in single, dual and multiple packages. The indicators are available in AIGaAs red, high-efficiency red, bright red, green, yellow, and bi-color at standard drive currents, as well as at 2 mA drive current. To reduce component cost and save space, 5 V and 12 V types are available with integrated resistors. The LEDs are packaged in a black plastic housing for optical contrast, and the housing meets UL94V-0 flammability specifications. .099 (2.52) .093 (2.36) + .143 (3.63) .250 (6.35) + .125 (3.18) DENOTES ANODE LEAD .300 (7.62) .029 MAX (0.74) .100 (2.54) .500 (12.70) FIG [ ... ]

MR5060-xxx PDF Datasheet Download