S23C24TR

Surge-Stopper suppressor diodes, often referred to as S23C24TR, are an efficient and cost-effective form of EMI/EMC protection. This type of component is an active device, designed to protect sensitive electronic components such as FPGAs, ASICs, and SDRAMs from damage due to transient overvoltage events. These transients occur when line voltage suddenly spikes or dips and can cause destructive electrical fires, power surges, or system downtime.

Surge-Stopper suppressor diodes are passive electronic guards that provide protection for delicate systems by automatically switching into action when a large voltage differentials occur. The high-power protection diodes feature a metal oxide varistor (MOV) that acts as the conducting element in the diode. The MOV conducts current during surges or spikes, redirecting the excess energy away from sensitive components, thus preventing destruction from transients. The MOV also acts as a passive electrical resistance element which serves to limit the current flow and voltage range when voltage transients occur.

The S23C24TR diode is a low-profile SMD component used for ESD, EMI, and EMC protection for portable devices and handhelds. It features a very small footprint and is ideal for applications such as PDAs, notebooks, and cell phones. The device also provides sufficient overvoltage protection to meet the latest standards for ESD. The diode is designed with three distinct layers; the first layer features a surface-windowed protection field device (SPF) with a monolithic core to minimize EMI and EMC symptoms; the second layer is composed of a multilayer varistor which provides excellent over voltage protection for a wide range of transient conditions; and the third layer is a conformal coating which provides the necessary insulation and protection against environmental contaminants.

The working principle of the S23C24TR is simple; when an incoming surge or spike occurs, the MOV quickly responds to redirect the energy away from sensitive components, thus allowing safe operation during transient conditions. It also features a self-resetting operation which ensures that normal operation is resumed when the transient event dissipates. The device also provides a low-impedance path for the current to travel, while allowing normal operation of the electronic component. This type of device is well suited for both AC and DC transient protection applications.

Overall, S23C24TR surge-stopper suppressor diodes are an effective and efficient way to protect against power transients in sensitive electronic equipment. Not only do they provide protection from voltage transients, but they are also small and unobtrusive, making them perfect for applications such as portable devices and hand-helds.