TFZVTR22B

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	22V
Tolerance:	--
Power - Max:	500mW
Impedance (Max) (Zzt):	30 Ohms
Current - Reverse Leakage @ Vr:	200nA @ 17V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	2-SMD, Flat Lead
Supplier Device Package:	TUMD2M

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Diodes – Zener – Single

The TFZVTR22B is a single diode that belongs to the Zener diode family. It is mainly used in voltage regulation and reverse voltage protection circuits. Its form factor is the SOT-443 package, making it an ideal choice for applications where space is at a premium.

Characteristics

The TFZVTR22B has a nominal zener voltage of 22 volts and a maximum rated power dissipation of 500mW. In addition, it has a high breakdown voltage, a low reverse current leakage, superior temperature stability, and a wide operating temperature range from -55°C to +150°C. The peak forward surge current rating of this diode is 15A, allowing it to handle significant transient current surges without damage.

Application

Due to its excellent performance characteristics, the TFZVTR22B is ideal for creating relatively low-cost voltage regulation circuits. It is especially useful in situations where the load changes frequently or is subject to wide swings in voltage. This diode can also be used in reverse voltage protection circuits.

Working Principle

Like all Zener diodes, the TFZVTR22B utilizes the Zener effect. When a normal diode is forward biased, the majority of the current goes through the diode, allowing only a small static leakage current. With a Zener diode, the voltage is reversed, causing the current to flow across the diode junction and the Zener effect enables the electric field to hold the current constant despite the presence of an increasing voltage. This allows electric current to flow from the reverse voltage side to the forward voltage side, creating a voltage regulation effect.

Conclusion

The TFZVTR22B is an excellent choice for use in voltage regulation and reverse voltage protection circuits. Its high breakdown voltage, low reverse current leakage, superior temperature stability and wide operating temperature range make it an ideal solution in a variety of applications.

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