1N825A (DO35)

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A DO35 (1N825A) zener diode is an electronic component made up of a P-N junction, a semiconductor material, and a robust packaging. It is a type of diode that is specifically designed to allow current to pass through it in a unique manner, and is used for voltage regulation or rectification in circuit design. The DO35 (1N825A) is a single zener diode, usually used for low power applications.

The DO35 (1N825A) zener diode features a voltage range from 4 volts to 200 volts, a current range up to 50mA and a power rating of 400mW. It is also available in components with different voltage breakdown levels and typical zener impedance values. The DO35 (1N825A) is a very popular diode due its small size, low cost and wide availability.

A do35 (1N825A) zener diode works based on its ability to reverse bias. When a voltage is applied to the diode, normally of the same polarity, a current flow starts that is proportional to the applied voltage. At a certain point on the operating curve, polarity reversal occurs and a certain voltage value is maintained as long as the current remains below the avalanche current. This point at which polarity reversal occurs is known as the Zener Voltage, and the diode performs its main function – voltage regulation.

The most common application for the DO35 (1N825A) zener diode is in a power supply circuit. It is designed to be used in series with a voltage regulator, providing a precise steady DC voltage and providing a stable power source for electronic products or components. It is also commonly used for electronic protection circuits. The diode’s precise regulation of current and voltage prevents the device being connected to the circuit from receiving too much power to avoid malfunctioning or damage.

The DO35 (1N825A) zener diode can also be used to generate a signal which can be used to prevent false operation in cases where the signal may be disrupted by unwanted interference. This type of zener diode can be used to block signals at certain frequencies, allowing the desired signal to pass. It is the most common type of diode used for this purpose. Furthermore, the 1N825A is also used in radio and television circuits for signal peaking, or in an amplifier or oscillator for impedance matching.

In conclusion, the DO35 (1N825A) zener diode is a single discreet component, designed to allow current to pass through it in a limited, regulated way. It is commonly used for applications such as voltage and current regulating, signal peaking, impedance matching, and protection circuits. Its low cost, wide availability and small size make it a popular choice for circuit designers.

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