What electronic component is this? What's the role.

1, TNR is the independent manufacturer code of Taiwan-funded enterprises Shunquan Electronics.

2. 14V indicates that the chip diameter is 14mm.

The "1" after 3.82 1 means that the number of zeros after the significant digit is "1", that is, a "0". 82 1 stands for 820 V.

4.K stands for voltage tolerance, and "K" stands for 10%.