JAN1N4990C

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The JAN1N4990C is a zener diode, which is a semiconductor device that is designed to consistently allow current to pass in one direction and at the same time regulate a certain voltage level. It is one of the single diode models in a series of devices used to provide protection against voltage spikes or transients in various electrical circuits.

This diode model has many uses in a variety of electronics fields and applications. It is commonly used in power supply circuits where it is used for voltage regulation, voltage level shifting, and power supply protection. It is also suitable for use in electronic circuits that require precision voltage reference and noise reduction. The zener diode can be used in circuits for amplifiers, DC converters, and signal conditioning circuitry. Further applications include LED drivers, signal references, signal buffers, and memory circuits.

The JAN1N4990C is a dual anode zener diode with a maximum allowable current of 500mA and a maximum power rating of 500mW. This diode has a breakdown voltage of 24V and a reverse leakage current of 30uA. The clamping voltage of this device is 24V and the surge current capabilities of the device is 2A. It is capable of being subjected to temperatures of up to 125°C and conforms to the JANTXV1 specification.

A zener diode works on the principle of avalanche breakdown. When the voltage across the diode is increased beyond the avalanche breakdown voltage, the current flows through the device. This emits an electron-hole pairs that create an additional current. This current increases exponentially with further increase in applied voltage and hence a zener diode regulates the voltage output by allowing the same current to flow across the diode, regardless of the connected load.

Thus, the JAN1N4990C is a commonly used single diode used for a variety of electronics applications that require voltage regulation, voltage level shifting, protection from transients, and noise reduction. Its features include a nominal breakdown voltage of 24V, power rating of 500mW, and surge current of 2A. It operates on the principle of the zener diode of avalanche breakdown and can operate over a range of temperatures up to 125°C.

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