BZX884-C4V7,315

The BZX884-C4V7,315 diode is part of a range of single zener diodes from Vishay Semiconductor. This diode is particularly suited to voltage regulator, stabiliser, and reference circuit applications.

The Zener diode is currently the most common form of voltage regulator used, as it is reliable and cost-effective. It works by allowing the voltage to flow in one direction, while limiting it when the specified breakdown voltage is reached. Its application field is broad, but most commonly it is used in power supplies, such as those used in personal computers and other electronics, other electronics that require stable voltage, such as audio amplifiers, and in radio frequency (RF) circuits.

The BZX884-C4V7,315 diode is a small-signal Silicon Zener diode with a cathode indicated by polarity band. It is packaged in a widely used DO-35 (Transistor Outline 35) plastic package. This diode has a zener breakdown voltage of 4.7 volts, and its maximum zener impedance is 15 Ω at I ZT . It has a maximum reverse power dissipation of 500 mW and a maximum reverse voltage of 5.3V.

The working principle of a Zener diode is fairly simple. When the device is connected with forward current, a normal diode-like characteristics appear. The anode is connected to a positive voltage. A zener diode has a built-in electrical property called “Zener breakdown” that causes it to remain in a “on” state even when the reverse voltage exceeds its breakdown voltage. This limits the voltage to the breakdown voltage. The junction temperature rises as the current increases, and the voltage drops slightly, known as the “Zener Voltage”.

When used in a power supply, the Zener diode is connected in parallel with a resistor. This is known as the Zener diode voltage regulator circuit. When the output voltage of the power supply exceeds the specified limit, the current flows through the diode, keeping the output voltage stable. A voltage regulator circuit is a two-terminal device, with the output voltage determined by the resistance-capacitance ratio.

In summary, the BZX884-C4V7,315 is a single Zener diode from Vishay Semiconductor. This diode is used in a variety of applications such as voltage regulators, stabilizers, and reference circuits. It has a zener breakdown voltage of 4.7V and a maximum zener impedance of 15 Ω at I ZT . It works by allowing the voltage to flow in one direction and limiting it when it reaches the breakdown voltage. It is connected in a parallel circuit with a resistor to regulate voltage in power supplies.