JAN1N4122-1

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JAN1N4122-1 is a type of single zener diode which is commonly used in many electronics applications. This diode is typically used in series mirror-voltage regulation applications, shunt regulator applications, reverse-bias protection applications, and more. It has a maximum voltage regulation of 22.5V and a maximum power dissipation of 0.3W (300mW).

Application field

JAN1N4122-1 is widely used in battery backed power supplies where the power must be maintained even during power interruptions. It is also used in voltage regulators and voltage references because of its stable and accurate performance. Furthermore, it is useful in circuits where AC noise needs to be suppressed and surges need to be diverted. It is also used for reverse-bias protection applications, thus protecting the circuitry from over-voltage events.

Working principle

The working principle of JAN1N4122-1 is based on the breakdown voltage of a zener diode. The diode is wired in reverse bias and when a voltage higher than the zener voltage is applied to the diode, the zener diode will become conductive and will start to draw current. This current will be regulated and so the regulated voltage across the load. This voltage is quite steady and is referred to as the zener breakdown voltage.

The JAN1N4122-1 is specially designed for use in series regulating applications. A series voltage regulator is used in circuits where a steady voltage is required and input variations must be compensated for. When the input voltage of the regulator changes, the zener diode will change its conductivity which in turn changes the output current of the regulator and maintains the output voltage at a steady level.

Other applications of the JAN1N4122-1 include shunt regulator applications. In shunt regulators, the zener diode is wired in parallel with the load and acts as a voltage reference device for the circuit. When the output voltage exceeding the reference voltage, the zener diode becomes conductive, limiting the output voltage of the circuit.

JAN1N4122-1 is also useful as a reverse-bias protection device in many circuit designs. In these applications, the diode will conduct current if the reverse bias voltage across the diode exceeds the breakdown voltage. This will protect the circuit from over-voltage events and short-circuiting.

Finally, JAN1N4122-1 is often used to suppress AC noise in different electronic circuits. The diode acts as a low-pass filter, blocking the AC noise while allowing the DC voltage to pass through without much attenuation.

In summary, the JAN1N4122-1 is a versatile and reliable single zener diode which has many applications in various electronic circuits. With its maximum voltage regulation of 22.5V and a maximum power rating of 0.3W (300mW), the JAN1N4122-1 is a great choice for any electronics designer.

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