TFZGTR2.2B

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The TFZGTR2.2B single zener diode belongs to a family of devices known for their ability to maintain a nearly constant voltage even when the current passing through them is varied. It has the capability of limiting the voltage across a circuit and is most often used for voltage regulation and fail-safe protection against overvoltage.

The TFZGTR2.2B is rated for a maximum reverse breakdown voltage of 2.2 volts. This voltage is the point at which the device begins to conduct in the reverse direction, instead of blocking the flow of current like a normal diode. The maximum current that the device is capable of carrying is 7.2 milliamps. The TFZGTR2.2B has a power dissipation rating of 350 milliwatts.

A primary application of the TFZGTR2.2B is protection against overvoltage. The device is placed in parallel with the circuit and clamps the voltage at its rated breakdown value of 2.2 volts. If the voltage of the circuit rises above that voltage, the device begins to conduct, limiting the voltage of the circuit to a safe level. This prevents the components in the circuit from being damaged due to an overvoltage condition.

The TFZGTR2.2B is also suitable for use in voltage regulation circuits. The device is placed in parallel with the circuit, and the current passing through is set to a value that limits the voltage to the desired level. This control method is also known as a voltage limiter, as it keeps the voltage in the circuit from exceeding a certain value.

The operation of the TFZGTR2.2B is based on the principle of Zener breakdown. When the voltage across the diode is increased past the breakdown voltage, a small region of the device begins to conduct in the reverse direction. This region is known as the Zener region, and due to the reverse current, the voltage at the junction is maintained nearly constant, regardless of the voltage applied to it.

The TFZGTR2.2B is a single zener diode, so it can be used for applications that require a single diode. It is comprised of a glass-passivated chip and is mounted in a standard SOT23 package. The device is able to be soldered, with a soldering temperature of 260°C for 10 seconds. The TFZGTR2.2B is suitable for use in a variety of circuits, including automotive, industrial, and consumer applications.

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