Amateur Extra › E6 Circuit Components › E6D02
E6D02
What is the equivalent circuit of a quartz crystal?
Pick an answer to check it.
Answer: A. Series RLC in parallel with a shunt C representing electrode and stray capacitance
A quartz crystal acts like a series RLC circuit (the motional arm), with a shunt capacitance in parallel from the electrodes and holder. This gives it both series and parallel resonances.
Tip: Series RLC shunted by holder capacitance.