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TVS - Diodes

A TVS (Transient Voltage Suppressor) diode is an electronic device used to protect a circuit from over-voltage, over-current and electrostatic discharges. TVS diodes are used in many applications including power supplies, telecommunications, automotive, industrial, and consumer electronics. The SA33CAHB0G is a bi-directional TVS diode, specifically designed to protect against electromagnetic interference (EMI).

Application Field

The SA33CAHB0G can be used in a variety of applications such as automotive, industrial, consumer electronics, telecom and medical systems. Automotive systems typically require higher peak pulse current for the protection of lines and components. Industrial systems require protection from shocks and overcurrents. Applications such as consumer electronics, telecom and medical systems require protection from high electrical transients.

The SA33CAHB0G is specifically designed for protection against both electrostatic discharges (ESD) and lightning strikes. It can also be used to protect power supply rails from over-voltage and over-current. The device is also EMI-compatible, which means it can effectively suppress electrical noise from sources such as high-frequency radiation and electrostatic discharges. It is suitable for both DC and AC applications.

Working Principle

The SA33CAHB0G is designed to provide protection against multiple over-voltage and over-current conditions. During normal operation, the diode acts as an open circuit and does not conduct. When the device is exposed to an over-voltage or over-current condition, the diode switches into a low voltage reverse biased avalanche state. This causes the device to conduct, dissipating the excess energy and returning the device to its normal operating state.

The device is designed to protect the system from a wide range of over-voltage and over-current conditions. The device is rated for an operating voltage range from ±20V to ±200V and can provide protection against peak pulse currents up to 6.2A. The device also features a high maximum clamping voltage, enabling it to protect a system against a higher level of over-voltage, thereby increasing system reliability.

Conclusion

The SA33CAHB0G is a bi-directional TVS diode specifically designed to protect against electrostatic discharges and other over-voltage/over-current conditions. The device is suitable for a wide variety of applications and offers a high maximum clamping voltage and peak pulse current ratings. The device is also EMI compatible and can effectively suppress electrical noise from sources such as high-frequency radiation and electrostatic discharges.

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