SACB7.0 Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS (Transient Voltage Suppressors) diodes are special components designed to protect a circuit against overvoltage transients. As one of the available types, the SACB7.0 (Surface Mount Avalanche Controlled Breakover) offers superior circuit protection with an ultra-low lying clamping voltage level. In this article, the application field and working principle of SACB7.0 are discussed.

The Application Field

The SACB7.0, along with its other family members, is designed for use in a variety of electronic applications. It is mainly used for transient protection against electrostatic discharges (ESD) and other large voltages that could be caused by inductive or capacitive transients. As a result, it can be found in applications where over-voltage protection is necessary, such as protection from lightning strikes or radio frequency interference (RFI). The SACB7.0 can also be used to protect power lines, electronics, and much more.

The SACB7.0 is particularly useful in automotive applications due to its low clamping voltage. This makes it suitable for use in automotive primary and secondary circuits that require robust protection from large overvoltage transients. It is also suitable for use in industrial applications where overvoltage protection is necessary.

Working Principle

The SACB7.0 consists of two parts, a voltage controlled silicon diode and an avalanche breakdown region. During normal operation, the avalanche breakdown region dissipates the energy of an incoming transient. When the voltage across the device exceeds the breakdown voltage, the silicon diode begins to break down. This breakdown is controlled due to the nature of the avalanche region, which provides a self-limiting action. The result is a device that limits the peak voltage presented to the protected circuit.

The device operates much like a “clamping circuit”, where the voltage is clamped to a pre-determined level, providing protection to the downstream circuit component. The SACB7.0 also incorporates a resistive element that limits the current to approximately 10 amperes. This makes it suitable for use with a wide range of currents, from milliamps to watts.

The device works by dissipating the energy of an incoming voltage. When the voltage exceeds specified limits, the avalanche breakdown region begins to break down, which limits the peak voltage presented to the protected component. This unique feature makes the SACB7.0 well suited for overvoltage protection, and it is particularly useful in automotive applications where a low clamping voltage is required.

Conclusion

In conclusion, the SACB7.0 is a very useful transient voltage suppressor (TVS) diode. It is suitable for a variety of applications, including automotive, industrial, and other overvoltage protection applications. Its self-limiting avalanche breakdown region provides superior protection with an ultra-low clamping voltage level. As such, the SACB7.0 is a reliable solution to protect circuits from overvoltage transients.

The specific data is subject to PDF, and the above content is for reference