BZW06-299B A0G

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TVS (Transient Voltage Suppression) diodes, are especially designed for protecting sensitive electronics from catastrophically high voltage transient pulses. The BZW06-299B is a series of such TVS diodes manufactured by Infineon Technologies. It offers low junction capacitance, high peak power and low clamping voltage. In this article, the application field and working principle of BZW06-299B A0G will be discussed.

The protection range of BZW06-299B A0G spans from a breakover voltage of 5.7V to 34V. It is designed to protect sensitive components such as microcontrollers, MOSFETs and other semiconductor devices. In addition, it provides 1500W surge capability at 8/20µs pulse and can be used at temperatures up to 125°C. Due to its high peak power capability with low clamping voltage, it is suitable for automotive, consumer, telecommunication and industrial applications.

The working principle of BZW06-299B A0G relies on its succinct structure. It consists of two well-matched diodes connected in series, where one of the diode is reverse-biased, and the other is forward-biased. When a surge occurs, the system applies a large voltage to the diode, which induces a forward-bias current to start conduction. When the voltage is above its clamping voltage, the conduction current increases rapidly and then saturates in the avalanche region. The reverse-biased diode clamps the voltage, so that the voltage across it won’t exceed its maximum value.

Whenever a surge occurs, the conduction current increases rapidly and the voltage across the two diodes drops to a low voltage. Thus, the BZW06-299B A0G shunts the surge current away from the sensitive device, preventing further damages due to overvoltage. The following is a simplified working principle of the BZW06-299B A0G:

In conclusion, the BZW06-299B A0G is a TVS diode that can provide reliable surge protection for high-sensitivity electronic components. It has low junction capacitance, high peak power and low clamping voltage, and can be applied in automotive, consumer, telecommunication and industrial areas. The working principle of BZW06-299B A0G relies on its succinct structure: two connected diodes. During surges, the conduction current increases rapidly and the voltage drops to a low voltage, thus shunting surge current away from the sensitive device and preventing damages due to overvoltage.

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