BZW04-299B R1G

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TVS diodes are high-speed electronic circuit-level components that protect components and circuits from over-voltage and over-current. BZW04-299B R1G is a type of TVS diode, whose features make it suitable for design applications such as electronic circuits, automotive safety systems, and communications systems.

BZW04-299B R1G application field

BZW04-299B R1G belongs to 600W & 400W type of TVS diode which possesses various features such as low-capacitance, low-capacitance base and reversed polarity overvoltage clamping protection. In addition, it is RoHS compliant, making it an attractive option for lead free new projects. Its small size makes it ideal for applications in the electronic instrumentation market. BZW04-299B R1G TVS diode is used in the application fields such as computer port protection, SI, TELE & FAX, ISDN, automotive safety systems, and Security & Lighting. The proximity of the transistor drain and gate the TVS diode provides also a dual protection for very high surge pulses as the MOSFET is generally vulnerable to over voltage transients (EOS).

BZW04-299B R1G working principle

The BZW04-299B R1G TVS diode protects the circuit from volts over transient voltages due to high-demand currents from outside sources or power spikes. Its working principle is that of a Zener Diode, where the diode clamps the peak voltage to the Breakdown Voltage of the Diode. The diode clamps the voltage by forcibly conducting the excess current through it. The Breakdown Voltage of the TVS Diodes is selected depending on the application.

The BZW04-299B R1G TVS diode uses Zener avalanche breakdown mechanism for protection, which results in precise clamping and lower power dissipation. The reverse polarity protection circuit prevents from high transient voltages to enter into the protected circuit and cause damage. The internal oxide layers of the diode structure limits the current passing through the diode, thereby protecting the circuit from over-voltage and over-current.

Conclusion

The BZW04-299B R1G TVS diode is a suitable diode for protecting electronic circuits, automotive safety systems, communications systems and Security & Lighting. Its features make it an ideal solution for use in a variety of applications in the electronic instrumentations market. Its working principle is using the Zener avalanche breakdown mechanism for protection, which results in precise clamping and lower power dissipation. Therefore, this TVS diode is highly recommended for the protection of electronic devices and systems requiring reliable over-voltage and over-current protection.

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