SMBJ5334AE3/TR13

The SMBJ5334AE3/TR13 is a single, highly reliable Zener diode designed and manufactured by STMicroelectronics. It functions as a regulating device and is used to maintain a constant voltage in any given electrical circuit. This Zener diode is highly useful in applications requiring a reliable voltage reference, such as in shunt voltage regulator circuits, power supply circuits, and oscillators.

Features

• Breakdown voltage of 5.6V.
• Current rate of 75mA.
• Static dissipation of 100mW.
• Rated Power of 500mw.
• Operating Temperature range from -55oC to +150oC.
• Small package size of 2-pin. SOT-23.

Applications

The SMBJ5334AE3/TR13 is mainly used for efficient regulation of voltages in the following applications:

• Shunt voltage regulation circuits.
• Primary power supply circuits.
• Oscillator circuits.
• Switch mode power supply circuits.
• High-speed digital circuits.
• Integrated circuits.

Working Principle

The working principle of the SMBJ5334AE3/TR13 is based on the Zener breakdown effect. In reverse-biased Zener diodes, when a large enough reverse voltage is applied across the Zener diode, it breaks down and hence allows a small amount of current to pass through. This amount of current remains the same over a wide range of voltages and is known as the “Zener voltage”. The SMBJ5334AE3/TR13 is designed to regulate an applied voltage to a constant 5.6V, regardless of the surge in the current or varying temperatures.