SA10A-E3/73

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SA10A-E3/73 is one type of TVS - Diodes. It is constructed with two series-connected bipolar transistors (in the same chip) that are triggered by an integrated avalanche structure, forming a non-linear diode with a defined clamping voltage. For this reason, it is known as transient voltage suppressor (TVS) diode. As such, TVS-diodes act like a fast acting surge protector, absorbing transient events to safe guard against mechanical, lighting, and ground fault transients.

The main purpose of an SA10A-E3/73 diode is protecting sensitive circuits against voltage transients. The diode is designed to be able to handle electrical power spikes that otherwise may lead to equipment malfunction or damage. It is designed to conduct high inrush transients while allowing the expected average DC current. Problems associated with voltage transients include slow startup, thermal runaway, and even circuit failures.

The application field of an SA10A-E3/73 is wide. Most notably, they are used to prevent malfunctioning of high speed digital circuits and other sensitive circuit devices. They are also very common in power supply design and in communication systems. In addition, they can be used to protect against lightning strikes, aging materials, and other physical causes of damage. Finally, SA10A-E3/73 diodes can be used to protect security systems, automotive and mechanical systems, and medical devices.

The working principle behind SA10A-E3/73 diodes is fairly straightforward. Its two series-connected transistors provide a quick, relatively symmetrically dropping, avalanche breakdown in case of an overvoltage. The maximum clamping voltage is limited by its inherent design. The main advantage of using transistors rather than just a zener diode is that the rapidity of reacting to overvoltage is improved thanks to their breakneck speed. During normal operating conditions, the diode operates as an open switch, with practically no voltage drop and very low power losses.

Due to its various features, SA10A-E3/73 diodes provide supreme protection against electrostatic discharge (ESD). They block and divert any dangerous surge to ground. Besides their inrush transient capability, the diodes feature a high capacitance and a fast response time. Measuring the capacitance of a given diode is a great way to measure its effectiveness versus the risks of surge protection.

In summary, SA10A-E3/73 diodes offer an effective and reliable protection against electrical overvoltage. They can easily be used in power supply design and in communication systems. Furthermore, their low resistance and capacitance make them attractive options for ESD protection. Whether the intended use is in high speed digital circuits, automotive applications, medical devices, or security systems, the SA10A-E3/73 can provide ultimate protection.

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