EFJ-C3005E5B Crystals, Oscillators, Resonators

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Resonators are electrical components that are used to establish a tunable frequency filter for both receiving and transmitting signals in the RF band. They consist of a small metal container that has a circular metal can at one end and a flat bottom that is connected to the circuit. They are connected to the circuit via two pins that are suspended in the can. The metal can has an inductor inside it and a variable capacitor that can be adjusted. EFJ-C3005E5B resonators is one such type of resonator.

The EFJ-C3005E5B resonator has a ceramic package that measures 5 x 5 mm. It has a inductive-capacitive (LC) type resonator with a center frequency of 300 MHz and ±25 MHz wide tuning range. It functions by resonating at the desired center frequency with the adjustment of the variable capacitors. The efficiency of the resonator can be increased by the use of an external temperature compensating capacitor. The operating temperature range is -30 to +85 degrees Celsius.

The main application of EFJ-C3005E5B resonator is in the area of wireless communications and radar systems. It is used as a selective frequency filter, frequency stabilizer, oscillator and frequency discriminator. It is also used as a frequency reference in superheterodyne receivers and transceivers, frequency control filters in analog to digital converters, and as part of a wideband amplifier. Additionally, it is used in industrial and consumer applications including temperature and humidity sensors, RFID tags and universal remote controls.

The working principle behind the EFJ-C3005E5B resonator is quite simple. It works by connecting a variable capacitance and inductor to a common point. This creates an LC circuit with a resonance frequency determined by the ratio of the value of elements. When a signal is applied to the LC circuit, the current divides between the inductor and the capacitor and oscillates at the resonance frequency. This frequency can be adjusted by adjusting the value of the capacitor. This type of oscillator is also known as a “tank circuit” because of its ability to “store” energy.

Resonators are essential components in the field of radio technology. The EFJ-C3005E5B resonator is a highly useful device that is used in all kinds of wireless communications systems and industrial applications. It offers a wide tuning range, high efficiency, and low losses making it suitable for a variety of applications. It is also a cost-effective device that can easily be integrated in existing systems.

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