SC628AH

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The SC628AH is a component that is used in alarms, buzzers, and sirens. It is a low profile and high-efficiency amplifier, with a wide operating supply range that makes it suitable for use in various applications.

The SC628AH is a high-reliability amplifier designed for applications where long-lasting and reliable operation is required, such as in sirens, alarms, and buzzers. It is a self-oscillating amplifier which can be used in conjunction with a loudspeaker, or other sound producing device, to drive the required sound.

The SC628AH has a wide operating voltage range of between 4.5 and 30 volts, which makes it suitable for use in a variety of applications, such as in automobile audio systems, loudspeakers, and other alarm and siren systems. It provides a maximum output power of up to 5 watts, with a low distortion rate.

The SC628AH utilizes a parallel amplifier design, which helps to reduce the power loss in the amplifying elements. This helps to boost the efficiency of the amplifier, while also reducing the power consumption. Additionally, the amplifier also has a low thermal resistance, ensuring reliable and long-term operation in high-temperature environments.

In terms of working principle, the SC628AH amplifies an input signal using two parallel amplifying circuits. These two circuits are connected in series and mutually balanced to provide a high voltage output. The amplifying transistors are made with high-quality components and operate in a Class AB fashion, providing a high current gain with low distortion. The two amplifying circuits are then configured so that each one is fed with a slightly different frequency, enabling the amplification of a harmonic signal.

The SC628AH also has a built-in protection circuit to protect the amplifier against any short-circuiting, as well as against excessive voltage and current. This helps to ensure continued and reliable operation of the amplifier even in extreme conditions.

The SC628AH is a highly reliable and efficient amplifier that is suitable for use in a wide range of applications. It is ideal for applications such as sirens, alarms, buzzers, and loudspeakers, and its wide operating voltage range makes it suitable for use in a variety of environments and applications.

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