FW2500025Z Crystals, Oscillators, Resonators

Crystals refer to solid-state objects in which the atoms are arranged in a regular lattice structure. An important subgroup of crystals is piezoelectric crystals, which include the FW2500025Z crystal. Piezoelectric crystals are born with a symmetry between the electrical and mechanical properties. When an external force is applied to the crystal, it will produce energy in the form of an electric field, and when an external electric field is applied to it, it will produce a force that drives the crystal to change its size and shape. The FW2500025Z crystal is a common type of piezoelectric crystal with a thickness of 2.5 mm and a frequency of 25-32 MHz.

The main application of the FW2500025Z crystal is in the use of radio transmitters. A transmitter is an electronic device that converts an electrical signal, such as an audio signal, into a radio-frequency signal as part of an electromagnetic wave that can travel through the air. The radio-frequency signal can be used to transmit audio or data from one location to another. In a typical radio transmitter, an oscillator is used to generate a carrier signal at the desired frequency. The FW2500025Z crystal forms the core of the oscillator, providing the devices with a high-precision reference frequency.

The crystal’s ability to generate a consistent frequency is due to its working principle. The piezoelectric effect states that when a mechanical strain is applied to certain crystals, an electrical charge will be generated. Similarly, when an electric field is applied, a mechanical strain will be produced. Depending on the type of piezoelectric material, the piezoelectric effect can be reversed, meaning that an electric field can be produced when a mechanical strain is applied, or vice versa.

The FW2500025Z crystal\'s ability to generate a consistent frequency is due to its special design. It consists of a pair of metal electrodes deposited on either end of a single crystal bar. One of the metal electrodes is attached to the crystal bar and the other is grounded. When a small voltage is applied, the crystal bar elongates and generates a frequency that is controlled by the geometry of the crystal bar and the applied voltage. Thus, oscillations occur at a fixed frequency determined by the generated strain.

The FW2500025Z crystal is a reliable and versatile piezoelectric device. With its precision frequency, it is widely used in audio transmitters, wireless communication systems, and radar systems. It is a cost-effective and compact solution for many applications.