This is the price inquiry on Taobao in China：0.85yuan
Product Features
10MM size: Length 10MM, Distance between feet 5MM
Height 7MM, 12MM Size: Length 12MM, Height 9.5MM, Distance between Feet 8.5MM
16MM size: 16MM in length, 12MM in height, with a distance of 10MM between the feet
T is for launch. R is for receiving.
The black circle on the pin is positive, and the other one is negative when connected to the casing
From the Internet.Publisher：writer，Please indicate the source when turning around：https://www.machinery-agent.com/Electronic_component/1314.html
