SMV2201-040LF Discrete Semiconductor Products

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SMV2201-040LF Variable Capacitance (Varicaps, Varactors)

Variable capacitance (VC) devices, also known as ‘varicaps’ or ‘varactors’, are commonly used in a wide range of electronics applications. The SMV2201-040LF is one such device, which is designed to regulate the amount of electrical charge passing through it.

The SMV2201-040LF is a Silicon MEMS VC device, capable of providing precise capacitance levels across a range of temperatures and frequencies. It features a unique “U-groove” structure, allowing for efficient power distribution, excellent EMI suppression, and improved stability. It can operate in temperatures ranging from -55 to +150 degrees Celsius. It’s small size (3.60mm x 4.25mm x 0.90mm) and low-profile makes it suitable for PCBs and other space-constrained applications.

The fundamental concept of VC devices is the tunnel or Schottky diode, which when exposed to an applied voltage across its junction, can create a region within its electrical field in which electrons can tunnel through. This phenomenon creates an increase in capacitance within the VC device. This capacitance can then be regulated with an appropriate control voltage.

The SMV2201-040LF has an optimized diode shaped dielectric layer which allows for efficient power distribution and improved EMI suppression. It also has a low leakage current and high insulation resistance, making it ideal for use in a wide range of communication and information processing applications.

The SMV2201-040LF is suited for use in a wide range of applications, including radio frequency (RF) tuning and filtering, antenna adjustment, optical networks, local area networks (LANs), RAM memory tuning, and other consumer electronics.

The working principle of the device revolves around the concept of the tunnel or Schottky diode. This diode will exhibit an increased capacitance when exposed to an applied voltage across its junction. This results in a ‘tuning-like’ action, wherein the capacitance of the device can be varied over a range of voltages with a corresponding variation in frequency.

The device is commonly used to create filters in RF applications as the capacitance of these devices can be varied over a wide range with a range of associated frequencies. This allows for precise signal sorting and the creation of selective filters. The device can also be used for signal shifting, signal modulation and resonance tuning due to its variable capacitance.

The SMV2201-040LF is suitable for various applications which require precision capacitance and frequency control, as well as EMI control and power distribution. The adjustable capacitance of the device makes it versatile, and allows it to be employed in a number of different scenarios. This makes the SMV2201-040LF a highly desirable device when it comes to tunable capacitance.

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