SM30T56AY

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The SM30T56AY is a transient voltage suppression diode (TVS) designed to protect electronic co mponents against voltage transients induced by lightning and other extreme events. The SM30T56AY is manufactured with a rated stand-off voltage of 30V and a peak pulse power rating of 600W, making it ideally suited to protect circuits from higher voltage spikes.

The device is a four-terminal component with a series diode/resistor combination that clamps the applied voltage so that it does not exceed the zener breakdown rating of the diode. This clamping occurs when the transient voltage rises above the breakdown voltage of the zener diode, and the current flow is limited by the series resistor. The SM30T56AY has an ultra-fast response time of less than 10ns, making it suitable for applications that require the highest levels of over-voltage protection.

The SM30T56AY can be used in a wide variety of applications where transient voltage protection is required. Common applications include consumer electronics, industrial components, and automotive systems. It is also a suitable choice for power supply inputs and outputs in high-power electronic devices. The SM30T56AY is RoHS compliant, making it an ideal solution for applications that require RoHS compliant parts.

The SM30T56AY is also available with an integrated ESD protection feature, allowing it to be used in applications that require protection against static electricity. The ESD protection feature is available in two versions: a Low capacitance (LC) version with 15pF ESD protection, and a High capacitance (HC) version with 150pF ESD protection. Both versions are designed to clamp transients up to 5V with minimal response time.

The SM30T56AY is designed to be connected in either a bidirectional circuit or a unidirectional circuit. In a bidirectional circuit, the device will protect both directions from transient voltages. In a unidirectional circuit, the SM30T56AY will protect the circuit from voltage transients that exceed the diode\'s breakdown voltage from one direction only. It is important to note that when the SM30T56AY is used in a bidirectional circuit, the series resistor must be of a higher value to ensure protection in both directions.

In summary, the SM30T56AY is an effective and reliable device for protecting electronics from transient voltage spikes. Its high peak pulse power rating, RoHS compliance, and integrated ESD protection make it an ideal choice for applications that require over-voltage protection.

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