SM15T30CA-E3/9AT

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TVS or Transient Voltage Suppressors, also known as Transient Voltage Suppression Diodes are a subset of the zener diode family, and they are designed primarily to protect vulnerable electronic components from transient overvoltage events such as spikes from lightning, noise on AC lines, or other power supply related issues. The SM15T30CA-E3/9AT is a 15 Volt unidirectional TVS diode that is designed for transient overvoltage suppression applications.

Working Principle

TVS diodes like the SM15T30CA-E3/9AT work on the principle of avalanche breakdown. As the name suggests, it involves the heavy flow of current into the diode when exposed to a large enough reverse bias voltage. This causes the diode to break down and act like a short circuit, dissipating the excess voltage, and thus protecting the circuitry. The SM15T30CA-E3/9AT diode is designed to clamp the transient voltage to 15V or less, and also offers protection against lower energy power surges. The device is also self-resetting, allowing it to protect the circuit from multiple transient events without requiring manual resetting.

Application Field

TVS diodes like the SM15T30CA-E3/9AT are often used in a variety of circuits and devices where transient protection is needed. This can most often be found in higher powered systems, such as industrial automation, server systems, UPS systems, or other commercial and consumer electronic systems. The fast clamping capability of the device, combined with the high power handling capability and low leakage current allows it to perform well in both AC and DC applications. It can also be used to protect automotive applications, such as ECUs and other computer systems.

The SM15T30CA-E3/9AT is designed to be an efficient device for power supply protection and transient protection both in commercial and automotive applications. It is suitable for both series and parellel connection with supply voltages between 6 and 30V. The device also has an ESDA rating of 10kV, making it extremely reliable and versatile.

Conclusion

The SM15T30CA-E3/9AT Transient Voltage Suppression diode is a versatile device well-suited for power supply and transient protection. It is reliable and offers protection from overvoltage transients over a wide variety of applications, ranging from AC and DC systems to automotive ECUs. It also features a wide operating voltage range and a low leakage current for efficiency and reliability. The device is also self-resetting, allowing it to protect multiple transient events while not requiring manual resetting.

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