SA170A-E3/54

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TVS (Transient Voltage Suppressor) diodes are a type of semiconductor device that have been designed to protect sensitive circuitry from high-voltage transients. The SA170A-E3/54 is a silicon-based TVS diode designed to protect against voltage transients in the range of 30V to 170V. This makes it a suitable choice for a variety of applications including automotive, consumer electronics and industrial applications. The device also has a low capacitance of less than 5pF, allowing for higher frequency operation and improved switching performance. This article looks at the SA170A-E3/54’s application field and working principle.

Applications of the SA170A-E3/54 TVS Diode

The SA170A-E3/54 TVS diode is suitable for transients in the range of 30V to 170V, making it applicable in automotive, consumer electronics, and industrial applications. In automotive applications, the SA170A-E3/54 could be used to protect against electrical transients such as Electrostatic Discharge (ESD), Electrical Fast Transients (EFT) and Line Transients (LET). In consumer electronics, the device is suitable for use on printed circuit boards to protect electronic components from damage caused by overvoltages. In industrial applications, the SA170A-E3/54 is suitable for use in ‘smart’ motor and machinery control circuits, as well as in electrical and metering equipment for protection against overvoltages and ESD.

Working Principle

TVS diodes work by having a bidirectional conduction capability, which means the device can flow current in either direction. When the current flow is in opposes the diode\'s direction, it starts to block this current, which has an effect of providing a voltage drop. The diode’s breakdown voltage is set to the required protection limit, and when the voltage across it reaches that limit it starts conducting and the voltage is clamped. The SA170A-E3/54 is designed to provide an unidirectional path for current spike up to the clamp voltage and then it releases the direct current (DC) voltage that is applied to it. When the voltage reduces again, the device stops conducting.

Features and Benefits

The SA170A-E3/54 offers a number of features and benefits. It has a low capacitance of less than 5pF, which allows for higher frequency operation and improved switching performance. The device’s low clamping voltage of less than 530V helps to reduce the overall power loss in the system. The device is also highly temperature stable, with a maximum operating temperature of -55°C to 125°C, making it suitable for use in both hot and cold environments. Furthermore, the SA170A-E3/54 is manufactured using a low temperature process, which helps to reduce stress on the active components. This, in turn, helps to reduce the risk of device failure.

The SA170A-E3/54 is a highly reliable and rugged device that is capable of handling a wide range of transient voltages and frequencies. It is easy to install and compatible with a variety of circuit packages, making it ideal for use in high-density circuit boards. The device also offers excellent ESD protection and comes with a guarantee of long-term reliability.

Conclusion

The SA170A-E3/54 is a silicon-based TVS diode designed to protect against voltage transients in the range of 30V to 170V. It is suitable for a variety of applications, and offers excellent ESD protection, a low capacitance, and a low clamping voltage. The device is highly reliable and temperature stable, and is easy to install and compatible with a variety of circuit packages.Overall, the SA170A-E3/54 provides an excellent solution for protecting sensitive circuitry from high-voltage transients.

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