CD4825E1VH

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Solid state relays are a type of switching device that control the flow of electricity. Unlike mechanical relays, which are commonly used in many applications, solid state relays (SSRs) contain no contact points or mechanical parts and are more reliable, efficient, and require less maintenance. The CD4825E1VH is a popularly used SSR that is suitable for a wide range of industrial applications from air conditioning systems to industrial machinery.

The CD4825E1VH is a single phase solid state relay series with an actual load current range of 25A and a rated control voltage of 4-32V DC. It offers superior performance at high switching frequencies(300kHz) and a wide temperature range of -40°C to +85°C. The CD4825E1VH relays feature zero-cross switching to reduce surges and buzzing noises caused by switching. Its high temperature protection and short-circuit protection adds to the added safety features.

Application Field:

The CD4825E1VH is a versatile SSR and can be used in numerous applications. They are suitable for controlling motors in industrial machines, operating air conditioner systems, controlling heaters, controlling solenoid valves, and much more. The CD4825E1VH can be used in automotive safety systems, battery charging systems, medical imaging systems, and even in lighting systems.

Working Principle:

The CD4825E1VH utilizes the components of an SCR (silicon controlled rectifier) as well as a logic circuit to enable and disable a load. The SCR is controlled, when the logic circuit is triggered, and it applies the AC or DC electrical supply to the load. When the logic circuit is activated, it sends a signal to the SCR, which then initiates the flow of power to the load and when the logic circuit is deactivated, it stops the flow of current to the load. This makes the CD4825E1VH an ideal SSR for applications that require fast, reliable switching.

The CD4825E1VH’s zero-cross switching ensures minimal switching noise and no surges. The zero-cross switching works by ensuring the control circuit is switched during the phase of minimum current. This ensures that the triggering of the SCR occurs when the current is low thereby limiting the amount of switching noise and surges. The CD4825E1VH also has short circuit protection, over-voltage protection and over temperature protection features which make it even more durable and reliable.

The CD4825E1VH advantages include fast switching, superior performance, low cost, no maintenance, and extreme reliability. The CD4825E1VH is the perfect fit for any application that needs a single phase SSR and is an excellent choice for a wide variety of industrial applications.

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