Vishay Zener Diode Single 21.71 V 500 mW Surface Mount 2-Pin DO-219AC (MicroSMF) PLZ22B-HG3_A/H

Vishay PLZ22B-HG3_A/H is a high-quality Zener diode designed for voltage stabilization and regulation in electronic circuits. This single diode with a nominal Zener voltage of 21.71 V is capable of dissipating up to 500 mW of power, making it suitable for low-power industrial and commercial applications.

The diode features a surface mount design housed in a compact DO-219AC (MicroSMF) 2-pin package, facilitating easy PCB mounting and space-saving circuit layouts. It utilizes silicon planar technology, providing ultra-low leakage current and excellent voltage stability characterized by a maximum Zener impedance of 30 Ω.

Designed to operate reliably across a broad temperature spectrum from -55°C to 150°C, this diode meets industrial and automotive application standards, including IEC 61760-1, IEC 61000-4-2 certifications, RoHS compliance, and the automotive AEC-Q101 standard for rigorous quality assurance.

Typical uses include protection circuits, voltage regulation, and stabilization in power supplies, as well as integration into automotive electronic modules requiring high reliability and long-term stability.

Rated nominal Zener voltage at 21.71 volts for stable voltage regulation. Maximum power dissipation of 500 milliwatts suitable for low-power circuits. Surface mount type with a compact 2-pin DO-219AC (MicroSMF) package. Low leakage current and maximum reverse leakage current of 200 nanoamperes.

Wide operating temperature range from -55°C to 150°C ensuring reliability. Test current of 5 milliamperes to maintain performance characteristics. Maximum Zener impedance of 30 ohms to ensure voltage stability. Compliance with IEC 61760-1, IEC 61000-4-2 standards, and RoHS directive.

Automotive standard qualified to AEC-Q101 for enhanced robustness. Silicon planar Zener diode technology for excellent stability and performance.

This product is ideal for applications in industrial electronics, automotive electronics, telecommunications, and power management systems where precise voltage control is critical. The surface mount design supports automated manufacturing processes.

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