1N4728A 3.3V Zener Diode

The 1N4728A is a 3.3V Zener diode built in a through-hole DO-41 glass case, designed to hold a precise, stable reference voltage in protection circuits and basic voltage regulation designs. Like other Zener diodes in this family, it should always be paired with a suitable Zener resistor for safe, reliable operation.

With a nominal voltage of 3.3V and a tolerance of plus or minus 5%, the 1N4728A serves as a dependable reference point for voltage regulation circuits and can also be used in switching applications and clipper circuit designs. Rated for 1.0 Watt power dissipation and a broad storage temperature range of -65 to 175 degrees Celsius, it offers the sharp reverse characteristics and high reliability expected from a well-made Zener diode.

• 3.3V nominal voltage – reliable reference and clamping voltage
• ±5% tolerance – consistent, precise performance
• 1.0 Watt power dissipation – handles moderate power loads
• DO-41 through-hole package – easy to mount and solder
• Wide temperature range – operates from -65°C to 175°C
• Common applications – voltage regulation, protection circuits, clipper circuits

Add precise low-voltage reference protection to your circuit with the 1N4728A 3.3V Zener Diode.