B72214T2381K105

TVS - Varistors, MOVs play an important role in protecting circuits from transient overvoltage. B72214T2381K105 is a kind of TVS - Varistors, MOVs. This article focuses on the application field and working principle of B72214T2381K105.

Application field of B72214T2381K105

B72214T2381K105 is suitable for protection of equipment, components and circuit systems against transient overvoltage. The application field covers the following fields:

• Data line
• Communication system
• Automotive electronics
• Power electronics
• Household appliance
• Communication equipment
• Consumer electronics
• Industrial automation
• Electronic equipment

Working Principle of B72214T2381K105

The working principle of B72214T2381K105 is very simple. It uses two Zener diodes to create a very low current path that diverts a large amount of current away from the protected part. When the current is large enough, an avalanche effect occurs, usually in the 6.4 to 8-volt ranges. This diverts the current away from the protected part, allowing it to be protected from transient overvoltage.

The two Zener diodes are perpendicular to each other to form the protection circuit. When the voltage difference between two points exceed the breakdown voltage of B72214T2381K105, the current flows in parallel through both the Zener diodes, thus forming a low-power path. The current flowing through the Zener diodes will cause a rapid increase in voltage within the Zener diodes, which causes an avalanche effect. When the avalanche effect is completed, the current will be diverted away from the protected part.

B72214T2381K105 is designed to have a preset current rating that prevents it from exceeding the rated amount. This makes it safe for use in protecting the protected part from transient overvoltage. The protection circuit is also designed to handle overvoltage surges above the rated voltage.

In addition, the protection circuit is designed to prevent the further increase of damage as a result of the overvoltage surge. This is done by limiting the amount of current that can flow into the protected part to a maximum amount that is predetermined by the protection circuit. This prevents the further increase of damage to the protected part and prevents the circuit from being damaged as a result of the overvoltage surge.