CA-301 50.2667M-K: PB FREE

Series:	CA-301
Part Status:	Active
Type:	MHz Crystal
Frequency:	50.2667MHz
Frequency Stability:	±30ppm
Frequency Tolerance:	±30ppm
Load Capacitance:	10pF
ESR (Equivalent Series Resistance):	80 Ohms
Operating Mode:	3rd Overtone
Operating Temperature:	-20°C ~ 70°C
Ratings:	--
Mounting Type:	Through Hole
Package / Case:	Cylindrical Can, Radial
Size / Dimension:	0.122" Dia x 0.350" L (3.10mm x 8.90mm)
Height - Seated (Max):	0.350" (8.90mm)

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Crystals: CA-301 50.2667M-K: PB FREE Application Field and Working Principle

Crystals are a key component in many radio frequency circuits, providing a stable reference frequency. Crystals of the CA-301 50.2667M-K variety fulfill a particular niche in the realm of electronics engineering, that of PB-free components for certain kinds of applications. Below, we will explain just what these components are, what applications they have, and how they work.

What They Are, and What They Do

The CA-301 50.2667M-K crystal is a LTCC-packaged, lead-free (PB-free) component, suitable for assembly into printed circuit boards. It is designed to offer a highly stable reference frequency in the range between 0.5 and 26.5 MHz, regardless of the surrounding electrical environment. It is particularly useful for applications making use of high frequencies, or large antennal elements, such as mobile Internet, small form-factor radio and satellite communications.

The Working Principle

The working principle starts with the nature of the vibrations within the crystal itself. Relaxation oscillators are a type of electrical circuit that are particularly sensitive to the type of vibrations that occur within a quartz crystal structure. By vibrating at a relatively high frequency, they create an electrical signal with a specific frequency, known as the reference frequency. When properly designed, the electrical circuit containing the CA-301 50.2667M-K crystal will oscillate in such a way to match the resonant frequency of the crystal. The crystal will then keep the electrical circuit oscillating at the same frequency, known as the reference frequency, regardless of the external electrical conditions. This makes the crystal an ideal component for producing signals at high frequencies that are stable and reliable.

Applications of a PB-Free Crystal

The CA-301 50.2667M-K crystal is specifically designed as a PB-free component, meaning that it is free from lead, which is toxic and can be harmful to humans and the environment if not disposed of properly. This makes it suitable for applications where there is a need for a reliable reference frequency, but where the risk of lead contamination must be avoided.In particular, the CA-301 50.2667M-K’s PB-free status makes it ideal for use in the following applications:

• Mobile Internet and cellular communications systems;
• Wireless and satellite communication systems;
• Automotive electronic systems;
• Radios and communications systems containing antennas; and
• Computers and other electronic devices.

The PB-free status of the CA-301 50.2667M-K also makes it very attractive from a cost-perspective. Since lead is a relatively expensive material, PB-free components can be more cost-effective for certain kinds of applications.

Conclusion

The CA-301 50.2667M-K is a versatile, lead-free (PB-free) crystal specifically designed for a wide range of applications. It is capable of providing a highly accurate and stable reference frequency of between 0.5 and 26.5 MHz. Its low cost and PB-free status makes it an attractive option for applications such as mobile Internet, cellular communications, and wireless and satellite communication systems. It is also suitable for use in cars, radios, computers and other electronic devices.

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