CM309E4800000ABJT

Series:	CM309E
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	MHz Crystal
Frequency:	4.8MHz
Frequency Stability:	±30ppm
Frequency Tolerance:	±30ppm
Load Capacitance:	18pF
ESR (Equivalent Series Resistance):	80 Ohms
Operating Mode:	3rd Overtone
Operating Temperature:	-10°C ~ 60°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	4-SOJ, 9.60mm pitch
Size / Dimension:	0.461" L x 0.157" W (11.70mm x 4.00mm)
Height - Seated (Max):	0.146" (3.70mm)

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Crystals

Crystal oscillators are a type of resonator used to control the frequency or timing of signals in electronic systems. The CM309E4800000ABJT is a miniature quartz crystal oscillator that utilizes a proprietary temperature-compensated oscillator (TCXO) design. It is designed for both consumer- and industrial-grade applications, providing a very stable frequency over temperature variations.The CM309E4800000ABJT crystal oscillator comes in a miniature 7.0 x 5.0 mm package, making it suitable for use in very small electronic products and wearables. The surface mount version allows for easy integration into the manufacturing process. This oscillator has a frequency range of 3.15MHz to 40.000MHz and a working voltage of 1.8 to 3.6V.The working principle of the CM309E4800000ABJT is based on the quartz crystal. A quartz crystal is a piezoelectric material, meaning that it produces an electrical signal when pressure is applied to it, and vice versa. In the oscillator, an electrical signal is applied to the crystal, causing it to vibrate at its natural resonance frequency. The output of the oscillator is a sinusoidal signal of the same frequency as the crystal’s natural resonance frequency, which can be used to control the frequency or timing of signals in electronic systems.TheCM309E4800000ABJT crystal is durable, exhibits low power consumption and is temperature-compensated over the -40 ~ +85°C temperature range. This ensures a high frequency accuracy and stability, making it suitable for all sorts of applications where temperature stability of a signal is critical. These applications include radio frequency (RF) systems, timing applications, and test & measurement equipment. It is also suitable for applications where the reduction of size and power consumption are critical, such as wearable and other portable electronic devices. The CM309E4800000ABJT is designed to meet stringent specification requirements, including a supply current of 3.0mA max, an aging rate of ≤ 2ppm/year, and a frequency tolerance of ±5.0ppm. It is available in commercial and industrial grade versions, with the industrial version offering an even better frequency stability over wider temperature ranges and voltage ranges.The CM309E4800000ABJT is an ideal choice for both consumer and industrial applications which require the reliable, accurate and stable frequency control offered by the temperature-compensating design of the TCXO. Its small size, low power consumption, and tight specification requirements offer great performance in compact, portable and cost sensitive products.

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