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Load capacitance is extremely critical in the design of crystal oscillator circuits. It is directly related to the frequency characteristics and stability of the crystal oscillator. It is the total capacitance composed of the crystal oscillator's external capacitance and the circuit's parasitic capacitance.

Farad capacitors, also known as supercapacitors and gold capacitors, are capacitors with special properties. Their capacitance can reach the Farad level or even higher, which is much higher than the capacity of ordinary capacitors.

Tantalum capacitors are often used in high-precision circuits due to their high reliability, stability and small size, but due to their high price and polarity requirements, special attention should be paid to the connection polarity during design.

Capacitors in parallel and series are very common in circuit design. Let's talk about their differences and applications.