MM3Z4V7T1G

Diodes - Zener - Single

A diode is a semiconductor device with two terminals, which conduct in one direction. Zener diodes are mainly used for voltage regulation, for stabilizing voltage, for protecting circuits from voltage transients, and for providing protection from overvoltages. Zener diodes are often used to provide a reference voltage for active components such as transistors. The MM3Z4V7T1G is a single Zener diode that offers a wide operating temperature range and a temperature coefficient of 0.009/°C. It is also RoHS compliant.

The MM3Z4V7T1G is a 5.6 V low capacitance Zener diode with an operating voltage ranging from 3.2 to 5.6 V. It has a high peak reverse power dissipation rating of 200 mW, making it suitable for many applications. It is also rated for up to 1.2 A operating current, making it suitable for many power supply regulation and protective applications. The device has a maximum reverse current of 5 μA at 1.2 V, a maximum reverse power dissipation of 100 mW, and a reverse breakdown voltage of 1 to 6V.

The MM3Z4V7T1G is a general-purpose Zener diode, suitable for a wide range of applications, such as voltage regulation in power supplies, protective circuits, overvoltage and undershoot protection, and transient protection from electrostatic discharge (ESD). Its operating temperature range is -55°C to +175°C, making it suitable for a variety of applications, including automotive, industrial, medical and communications. Due to its wide operation range and low capacitance, the MM3Z4V7T1G is suitable for high-speed circuits, where it can provide protection against spills and transients.

Working Principle

The working principle of the MM3Z4V7T1G lies in its junction capacitance, which is used to control the voltage across it. When an electric field is applied, the current in the diode increases and becomes practically constant. This varies the voltage drop across the diode and the reverse current in the diode. The amount of voltage drop depends on the amount of capacitance present. This voltage drop is called the Zener voltage. The Zener voltage is determined by the junction capacitance, which controls the amount of current flowing through the diode. The Zener voltage and current remain constant until the current is exceeded, at which point the diode will break down and the circuit will be over-voltaged.

The MM3Z4V7T1G is designed to be used in a circuit as a voltage regulator or transient protection. In a voltage regulated circuit, the Zener voltage is used to regulate the voltage across the Zener diode and limit any jumps in the output voltage. In a transient protection circuit, the Zener voltage is used to limit the voltage drop across the diode, protecting the circuit from any sudden over-voltage or under-voltage transients.

The MM3Z4V7T1G is a low capacitance Zener diode, making it ideal for fast switching applications, as it can respond quickly to changes in voltage. It is also ideal for voltage regulation and over-voltage protection in automotive, industrial, medical and communication applications due to its wide operating temperature range.