SA90CA-E3/73

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TVS, or Transient Voltage Suppression diodes, are designed to protect sensitive electronic devices from overvoltages caused by electrostatic discharge (ESD) voltages or surges. The SA90CA-E3/73 is one such diode, which is widely used in consumer and industrial applications for its versatile protection capabilities. In this article we will look at the application field and working principle of the SA90CA-E3/73.

Application Field of SA90CA-E3/73

The SA90CA-E3/73 device is a unidirectional transient voltage suppressor diode designed for use in all kinds of electronic circuits where overvoltage protection is necessary. It is suitable for protecting against ESD pulses and other voltage transient phenomena in many consumer electronic products such as digital cameras, camcorders, mobile phones, tablet PCs, PDAs, audio/video equipment, and more. This diode can also be used in various industrial applications, including power supply protection, telecom line protection, and line card protection.

Its compact structure and low profile lead make it ideal for use in space constrained applications. Its fast response time and low capacitance make it perfect for protecting against transient overvoltages. The SA90CA-E3/73 can also be used with surface-mount applications due to its small size and low capacitance. Its four layer, planar construction also makes it a good choice for high-density, high-frequency, and high-temperature applications.

Working Principle of SA90CA-E3/73

The SA90CA-E3/73 diode is composed of a reverse-connected PN-junction. When a transient overvoltage occurs across the device, a current surge is generated and the diode is rapidly placed in the conductive state. This process begins with the junction becoming forward biased, allowing current to pass through the diode. As a consequence, the current surge is shorted to ground, leading to a suppression of the transient phenomenon.

The device will remain in the conductive state until the applied voltage across the diode decays to a safe level. Once this occurs, the PN-junction returns to its original non-conductive state. This protect the circuit against further over-voltages or surge transients. The fast response time of the diode ensures that it is able to react to transient over-voltage events quickly and effectively, thus minimizing the damage they could potentially cause.

The SA90CA-E3/73 is a robust device that can handle up to 1000W of transient power in an 8/20μs waveform. It also features a high peak current handling capability of up to 10kA. These characteristics make it an ideal choice for protection of sensitive electronic products from overvoltages and transients.

Conclusion

The SA90CA-E3/73 device is a unidirectional transient voltage suppressor diode designed for overvoltage protection. It has a wide range of applications in consumer and industrial products and its small size and low capacitance make it suitable for high density applications. This diode features a fast response time and high peak current handling capacity, making it an excellent choice for the protection of sensitive electronic circuits.

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