Popular IC Types: PC817, NE555, LM358, LM324, JRC4558, LM393, LM339, NE5532, LM386, TDA2030, TDA2822, PT2399, UC3842AN, UC3843AN, ULN2003AN, ULN2803APG, ICL7660s. With an incredible variety of essential components, you’ll have everything you need for your projects, from oscillators to operational amplifiers.