ECS-250-18-5PX-JEM-TR

Series:	CSM-7X
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	MHz Crystal
Frequency:	25MHz
Frequency Stability:	±50ppm
Frequency Tolerance:	±20ppm
Load Capacitance:	18pF
ESR (Equivalent Series Resistance):	30 Ohms
Operating Mode:	Fundamental
Operating Temperature:	-20°C ~ 70°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	HC-49/US
Size / Dimension:	0.449" L x 0.189" W (11.40mm x 4.80mm)
Height - Seated (Max):	0.169" (4.30mm)

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ECS-250-18-5PX-JEM-TR Crystals

Crystals play a vital role in communication systems, electronic components, instruments, and other electronic equipment. They comprise of oscillator circuits that periodically oscillate at a particular frequency, as determined by the physical properties of the crystal and voltage levels applied to it. The ECS-250-18-5PX-JEM-TR crystal is a high precision, low noise crystal oscillator that operates at specific frequencies, known as the cut frequencies.

Application and Working Principle

The ECS-250-18-5PX-JEM-TR crystal has a wide range of applications in various industries, ranging from aerospace to telecommunications. This crystal is used in frequency synthesizers, direct digital synthesizers (DDS), spread spectrum clocks, mobile radio transceivers, and global positioning systems (GPS). The working principle of the ECS-250-18-5PX-JEM-TR crystal is based on the oscillation of an electrical signal received by the crystal. This crystal consists of an oscillator circuit composed of an inductor and capacitor, applied across a quartz crystal diaphragm with a specific cut frequency. The crystal diaphragm is made of piezoelectric material, meaning it is sensitive to external electrical and mechanical factors. This sensitivity allows the crystal diaphragm to oscillate with a specific frequency determined by the cut frequency. The quartz crystal diaphragm is connected to a metallic tuning fork that vibrates when an alternating current potential is applied to it. This vibration is transmitted to a quartz crystal, causing the piezoelectric material to vibrate and oscillate with a frequency determined by the cut frequency. The oscillation of the crystal generates an electrical alternating current that is then transmitted to the output stage. The output stage amplifies the alternating current signal and the frequency of the signal is determined by the cut frequency. The frequency of the signal generated by the crystal is known as the operating frequency, which must be within a narrow range for the crystal to be suitable for use. This crystal is designed to operate over a wide frequency range, with the typical operating frequency lying between 8MHz and 150MHz.

Advantages

The ECS-250-18-5PX-JEM-TR crystal is one of the most reliable and accurate Crystals available on the market. This type of crystal oscillator has a wide operating temperature range, typically between -40°C and +95°C, with excellent temperature stability. The ECS-250-18-5PX-JEM-TR crystal is also very efficient and consumes less power than other crystals. It has very low frequency drift, meaning it will not drift in frequency even when subjected to various outside factors such as temperature changes and supply voltage.Additionally, this crystal has very good in-phase and quadrature error specifications – it generates an output signal with very little phase noise and presents a very low jitter noise performance. The extremely flat group delay also ensures the reliability of the oscillator to a high degree.

Conclusion

The ECS-250-18-5PX-JEM-TR crystal is one of the most reliable and precise crystals available on the market, with a wide range of applications in various industries. The crystal is very efficient and has a wide operating temperature range, low frequency drift, low in-phase and quadrature error specifications, and an extremely flat group delay. This makes the crystal an excellent choice for precise timing applications.

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