Diotec ZPD20B, 2811662, is a precision Zener diode engineered for voltage stabilisation applications requiring a nominal Zener voltage of 20 volts. This component is designed with a through-hole package, delivering reliable performance under varying electrical conditions with a power dissipation of 500 milliwatts and a tolerance of 2%. Constructed with a p-n junction, the ZPD20B functions effectively as a blocking diode, making it suitable for use in power supply circuits, voltage reference modules, and other electronic systems where voltage regulation is essential. It is a preferred choice among engineers for its balance of performance and reliability in maintaining consistent voltage across components. https://elecena.pl/product/29679726/diotec-zpd20b-2811662-zener-diodes-20v-500mw-through-hole-2-tolerance 2026-01-10 https://elecena.pl/product/29679726/diotec-zpd20b-2811662-zener-diodes-20v-500mw-through-hole-2-tolerance 2026-04-15 https://elecena.pl/product/29679726/diotec-zpd20b-2811662-zener-diodes-20v-500mw-through-hole-2-tolerance 2026-06-22 https://elecena.pl/product/29679726/diotec-zpd20b-2811662-zener-diodes-20v-500mw-through-hole-2-tolerance 2026-07-15