What is the difference between the two transistors referred to!!

Hello, What is the difference between the two transistors referred to!! What does the letter B and C mean??

Solution

The B version has a DC current gain of 200, while the C version has a current gain of 420.

Here there differences are listed.

https://www.findchips.com/compare/bc547b--vs--bc547c

Compare BC547B by undefined vs BC547C by undefined. View differences in part data attributes and features.