1N4729CPE3/TR12

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Zener diodes are a type of semiconductor diode designed to break down at a specified reverse voltage, allowing current to pass while acting against overvoltage. The 1N4729CPE3/TR12 Zener diode is a single type with low power dissipation, making it suitable for use in digital and analog electronic circuits where high stability and low noise are desired.

The 1N4729CPE3/TR12 is a monolithic silicon planar power Zener diode with an integrated guard ring for transient protection. Zener diodes require a forward gate current to induce a reverse breakdown voltage, after which the diode can pass current. The presence of a guard ring helps to reduce the effect of parasitic capacitance in the circuit on the induced breakdown voltage.

The 1N4729CPE3/TR12 is designed for easy usage in circuit boards. The Zener diode is housed in a 3-lead Plastic SOD-523F surface mount package with a max height of 2.15mm and a lead/pad pitch of 0.65mm. This allows them to fit in small spaces without the need for additional spaces. It also provides excellent heat dissipation with low thermal resistance.

The 1N4729CPE3/TR12 Zener diode has a reverse breakdown voltage of 3.3V with a prevention voltage ranging from 3.4V to 6V and an operating temperature range of -65°C to +100°C. The device has a reverse current leakage of 0.2µA. The maximum reverse power dissipation of the 1N4729CPE3/TR12 diode is 300mW, and a maximum forward voltage of 0.8V.

The 1N4729CPE3/TR12 Zener diode is suitable for variety of applications, including: clipper circuits, overvoltage protection circuits, voltage discriminator circuits, switching power supplies and voltage regulation. This is due to the relatively low cost of the device, as well as its low power consumption and easy to install design.

The working principle of the 1N4729CPE3/TR12 Zener diode lies in its ability to adjusts the voltage on its node to a constant value, regardless of changes in input and output load. Through a simple circuit design, this type of Zener diode can easily regulate an output voltage to a preset value. This is done by placing a Zener diode in series with a resistor. When the input reaches a certain voltage, the Zener diode turns on and begins to regulate the voltage level by adjusting its voltage to the preset value.

In summary, the 1N4729CPE3/TR12 is a low power dissipation, high stability single type Zener diode with a breakdown voltage of 3.3V and a maximum reverse power dissipation of 300mW. The diode works by adjusting the voltage on its node to a preset value, allowing it to be used in a variety of applications such as clipper circuits, overvoltage protection circuits, voltage discriminator circuits, switching power supplies and voltage regulation. This Zener diode is housed in a 3-lead Plastic SOD-523F surface mount package, making it easy to install and use in circuit boards.

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