1N963B

The 1N963B Zener diode is a single diode designed to regulate the voltage within an electrical circuit. It is a rectifying type diode that has two electrodes – the anode, and the cathode – just like any other diode.

Application Field

A 1N963B Zener diode is primarily used for voltage regulation or reference voltage applications. These diodes provide a constant voltage source for circuits when used in a reverse biased configuration. They are commonly used in radio, television, and other electronic equipment, as well as electronic power supplies, automotive electrics, and circuit boards. They can also be used as a voltage limiter, or to protect sensitive components from transient voltage to ground. Additionally, they are often used in circuit protection, and as a stabilizer in digital logic systems.

Working Principle

The working principle of a 1N963B Zener diode is based on the behavior of an ideal diode: when it is forward biased, current will flow from the anode to the cathode. however, when it is reverse biased, current will flow from the cathode to the anode, but only if the applied voltage exceeds the breakdown voltage, or Vz, of the diode. At this point, the diode will conduct, allowing current to flow from the cathode to the anode. The voltage at which this breakdown occurs is known as the “Zener voltage”, and it is typically very little such that it can be accurately controlled and used in voltage regulation.

Once the Zener voltage has been reached, the diode will continue to conduct current until it reaches its maximum rated power, at which point it will be saturated. In this state, the voltage across the diode will remain constant, regardless of the amount of current being drawn through it. This allows the diode to act as a voltage regulator, as the Zener voltage will remain constant, despite fluctuations in the current through the circuit.

In summary, the 1N963B Zener diode is a single diode that can be used for voltage regulation or reference voltage applications. It works by allowing current to flow from the cathode to the anode when the applied reverse bias voltage exceeds the breakdown voltage, or Vz, of the diode, creating a constant voltage across the diode. This allows the diode to act as a voltage regulator, as the Zener voltage will remain constant, despite fluctuations in the current through the circuit.