V47ZS05PX2855

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The V47ZS05PX2855 is a type of Transient Voltage Suppression (TVS) device, designed to protect sensitive electronics from high voltage transient. TVS devices are a category of surge protecting components that also includes varistors (MOVs) and silicon-controlled rectifiers (SCRs). As a TVS device, the V47ZS05PX2855 is used to securely shunt excess voltage at high speeds to ground, quickly and safely diffusing electrical shock that would otherwise damage sensitive equipment. The V47ZS05PX2855 is particularly suited to heavy-duty applications, which may require a higher voltage threshold or clamping mechanism.

The V47ZS05PX2855 is specially designed for applications involving 24V and 48V DC input power. It is a low capacitance device with low inter-electrode capacitance, low leakage, and fast response time. The device is housed in an industry-standard SOT23 discrete plastic surface mount package, enabling self-assembly processes with low thermal resistance.

The main purpose of the V47ZS05PX2855 is to provide electrical overvoltage protection in various AC and DC circuits. Its maximum clamp voltage, at 21V DC, is designed to self-activate and begin clamping voltage exceeding the maximum operating voltage without input from an external circuit. The device is also capable of providing ultra-low capacitance protection (less than 6 pF) for analog and digital signals, ideal for protecting sensitive components in data communications and networks.

The working principle of the V47ZS05PX2855 is based on the principle of avalanche breakdown. When a surge or overvoltage is applied to a PN junction device, an electric field is set up. The voltage across the junction increases as more charge is accumulated. If the voltage is sufficiently high, the electric field can become strong enough to cause a spark to form, allowing for current to flow across the junction. This is known as avalanche breakdown.

At this point, the device can act as a shunt, allowing the excess voltage to safely flow to ground. This process happens quickly, usually in 1 to 3 nanoseconds. This makes the V47ZS05PX2855 ideal for applications in which response time is critical, such as data communication and networking.

The V47ZS05PX2855 is an essential component for many applications that demand a reliable protection solution. Its fast response time, low capacitance, and low voltage clamping capabilities make it an ideal choice for applications requiring electrical overvoltage protection. It is especially well suited for AC and DC power circuits, analog and digital data communications, and networking.

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