SA120CA-E3/73

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TVS - Diodes, or Transient Voltage Suppression Diodes, are designed to quickly respond to and protect against voltage transients over an electrical line. The SA120CA-E3/73 is a particular TVS diode that is specifically designed for use in data line and telecom protection applications. This diode consists of avalanche breakdown and high-speed switching technologies that make it the preferred choice for a wide variety of signals. In this article, we will discuss the application field and working principle of the SA120CA-E3/73.

The SA120CA-E3/73 is designed for use in low to moderate power low frequency (LF) radio frequency (RF) and DC/DC applications. This diode features low inner capacitance values and high holding peaks, which make it ideal for protecting data lines, as well as signals from radiated sources. With a peak pulse power of 819W (10/1000μs), Volt Clamping of 17.2V, and an average junction temperature of +125°C, the SA120CA-E3/73 offers superior protection for a variety of signals.

When it comes to the working principle of the SA120CA-E3/73, it is relatively simple. This diode consists of a zener region and a BZT (Breakover Zener Transistor) region. The zinc oxide layers in these regions act as a switch for the current flow. When the voltage applied exceeds the diode’s breakdown voltage (Vbr), the zener region will be triggered and the BZT region will then become active. The BZT region allows for a higher current to flow, which helps protect the device from excessive voltage transients.

When the diode is not being subjected to a voltage transient, the zener region acts as a series resistor that prevents current overloads. In addition to this, the diode features a low on-state voltage drop, enabling it to maintain a consistent voltage on the load. This helps protect signals from becoming distorted or otherwise unnecessarily affected.

The SA120CA-E3/73 has a wide range of applications that include DC/DC converters, telecom and data line protection, low frequency RF protection, and automotive protection. This diode is also suited for use in medical equipment, cell phone base stations, military equipment, and consumer electronics. Furthermore, it has been designed for use in systems with ESD levels of ±30kV and RF Signal levels of + 135dBm.

The SA120CA-E3/73 is a high-performance TVS diode designed to protect electronic components from voltage transients. It has a low on-state voltage drop and a series resistor that prevents current overloads. This diode is designed for use in low to moderate power low frequency RF and DC/DC applications, and it can handle ESD levels of ±30kV and RF Signal levels of + 135dBm. With its superior protection capabilities, the SA120CA-E3/73 is an ideal choice for telecom and data line protection, low frequency RF protection, automotive protection, and other applications.

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