1PMT4112/TR7

Diodes - Zener - Single

The 1PMT4112/TR7 is a Zener diode, which is a special type of diode that is used to regulate voltage levels. This type of diode has several unique characteristics, such as its ability to maintain a fixed voltage level and its ability to protect against high-voltage transients. The 1PMT4112/TR7 is specifically designed to regulate 12 volts, but it can be used in other voltage-regulated circuits as well.

Application Field

Zener diodes, like the 1PMT4112/TR7, are used primarily for voltage regulation in circuits. They are especially useful for DC/DC converters, where the output voltage needs to remain constant despite any changes that may occur in the input voltage, such as across a fluctuating power supply line. They are also used for voltage shifting, and as a part of other circuits that require a stable voltage reference. Another important application for Zener diodes is protection against over-voltage on inputs and outputs of equipment, as a safeguard against voltage spikes that could potentially damage delicate electronic components.

Working Principle

The 1PMT4112/TR7 is a Zener diode, which works in two main modes: forward-bias and reverse-bias. When connected in a circuit in a forward-bias mode, the diode acts as a regular diode, allowing current to flow in the forward direction only. This is known as the forward bias mode, and it is the most common mode of operation for a regular diode.When connected in a reverse-bias mode, the Zener diode shows a different electrical behavior. In this mode, a small reverse-voltage is applied to the diode, which causes the diode to break down and let current flow in both directions. This is known as the breakdown voltage, and it serves to ensure that the voltage drops to a set predetermined value, regardless of the changes in the voltage of the input power source. This makes the Zener diode ideal for use in voltage-regulated circuits.

Conclusion

The 1PMT4112/TR7 is a Zener diode, which is used primarily for voltage regulation and protection against high-voltage transients. The Zener diode works by operating in two modes, namely forward-bias and reverse-bias. In the reverse-bias mode, a small reverse-voltage is applied to the diode, which causes the diode to break down and let current flow in both directions, thus regulating the voltage to a set predetermined value. This makes the 1PMT4112/TR7 an ideal component for use in a variety of voltage-regulated circuits.