UDZ8V2B-7 Discrete Semiconductor Products

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

Diodes - Zener - Single

The UDZ8V2B-7 is a Zener diode suited for use in a range of applications. Its name derives from the characteristic behaviour of its reverse biased PN-junction formed from two differently doped silicon layers, which creates a kind of potential barrier.

The UDZ8V2B-7 is a 1 watt (1 W) Zener diode that operates in the breakover region between 8 and 10 volts forward voltage. The Zener diode has a current rating of 100mA to 500mA depending on its application. The reverse breakdown voltage of the UDZ8V2B-7 is 7.1 volts – a typical value for a Zener diode of that type.

In general, a Zener diode is used to prevent overvoltage in electronic circuits by clamping voltage to a specific level. When forward biased, with the associated current flowing, the diode acts as an ordinary diode. However, if the applied voltage is greater than the Zener voltage (ZV), the PN-junction breaks down and a current begins to flow in the reverse direction. This current is limited by the impedance of the circuit and the Zener more or less "clamps" the voltage to a fixed level.

When reverse biased, the UDZ8V2B-7 behaves as a diode with a negative resistance characteristic. This characteristic is also found in avalanche diodes and other Zener diodes. It ensures that the voltage remains almost constant at its Zener voltage when the current passes through a certain threshold value. As a result, the diode provides a much higher degree of regulation than an ordinary diode.

The UDZ8V2B-7 is typically used in circuit designs requiring a fixed reference voltage. They are usually found in voltage regulation, voltage monitoring systems, power supply systems and telecom equipment. Their very stable reference output can be used for low-power, high-accuracy reference components for a variety of circuits. The Zener diode is also used for overvoltage protection, frequency multipliers and temperature compensation.

The working principle of the UDZ8V2B-7 is based on the PN-junction formed between two differently doped semiconductor layers. During normal operation, the PN-junction keeps the electric field at the boundaries of the junction low, ensuring that the current continues to flow only in the forward direction. However, when the voltage is greater than the Zener voltage, the electric field builds up at the boundary and causes current to flow in the reverse direction.

The Zener diode can be used in numerous applications including voltage regulation, voltage monitoring systems, power supplies, and telecom equipment. Its very stable reference output can be used for low-power, high-accuracy reference components for a wide range of applications.

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