SMZJ3799AHE3/5B

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The SMZJ3799AHE3/5B Zener diode is a single-terminal, non-polar device designed to breakdown at a specific reverse voltage. It functions as an Voltage regulator, protection device, and limit circuit. It keeps the voltage across the diode constant when current is passed through it.

A Zener diode passes current in the forward direction, just like a normal diode. But, when the voltage exceeds the rated breakdown voltage value, the diode turns on and passes current in the reverse direction. This ability makes Zener diodes an indispensable regulator and protection device for a wide range of circuits.

The SMZJ3799AHE3/5B is capable of withstanding reverse voltages of +3.3 Volts. The rated current and power are 350mA and 500mW, respectively. This diode also has resistance values of 2.5 ohms forward and 16 ohms reverse.

The SMZJ3799AHE3/5B diode operates in applications such as transistor bias on AC circuits, audio equipment, power supplies, voltage regulators, and surge protectors. It is mainly used to prevent overvoltage due to reflections, lightning, or sudden voltage spikes or as a Zener voltage regulator for precise control of low voltages.

The main working principle of the SMZJ3799AHE3/5B is that it deliberately limits the current flowing through it if the applied voltage exceeds the rated breakdown voltage value. This prevents the circuit from being damaged due to exceeding the power dissipation capabilities of the diode, and the circuit components which are connected from the diode. The diode also protects the Zener diode itself from overvoltage conditions which could render it inoperable.

The SMZJ3799AHE3/5B is popular due to its small physical size and low power drain. It is rated for a wide temperature range and is also very reliable. The diode can provide a stable and precise voltage level when designed appropriately with proper thermal resistance. It is one of the most important elements of a Voltage Regulation, Protection and Limiting circuit.

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