1N4690

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The 1N4690 is a Silicon Zener diode with moderate capacitance and low leakage current. It has a power dissipation rating of 200 mW, 5.1 V zener reverse breakdown voltage, and an operating temperature range of -75 °C to +150 °C.

The 1N4690 is used in applications that require voltage regulation, such as power supply circuits, television receivers, and audio amplifiers, where the zener diode is used to maintain the voltage in a circuit. It is also used in a variety of other applications, such as voltage detection, voltage dividers, and transient suppression.

The 1N4690 works as a voltage regulator by allowing current to flow in only one direction, from anode to cathode. When a positive voltage is applied to the anode, current will flow from the anode to the cathode until it reaches the breakdown voltage of the diode, at which point the current will increase. As the voltage increases, the current will increase, causing the diode to act as a shunt, limiting the current and regulating the voltage.

Once the current exceeds the rated maximum, the diode becomes reverse biased and it acts as an open circuit. This prevents the voltage from exceeding the breakdown voltage and protects the circuit from damage. The 1N4690 is also used in ESD (electro-static discharge) protection circuits, where it can absorb excess static charge without being damaged or destroying the circuit.

The 1N4690 diode is also popular in circuit design because of its wide operating temperature range. It can be used in circuits that require low-power operation at temperatures as low as -75°C, and it can also handle temperatures up to 150°C. This makes it an advantageous component choice for temperature-sensitive circuits, such as automotive applications.

In summary, the 1N4690 is a Silicon Zener diode widely used in a variety of applications that require steady and reliable voltage regulation. Its wide operating temperature range makes it suitable for use in temperature-sensitive circuits and its low leakage current makes it ideal for ESD protection circuits. Its power dissipation rating of 200 mW and 5.1 V zener reverse breakdown voltage make it a suitable component for many different applications, such as power supplies, TV receivers, and audio amplifiers, where consistent and reliable voltage regulation is necessary.

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