DMG9640N0R

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Bipolar junction transistors (BJTs) have been the backbone of many fields of electronics for decades. A transistor array is an arrangement of multiple transistors that are connected in parallel for the purpose of providing higher levels of current and voltage than a single transistor could provide. The DMG9640N0R is a transistor array that is pre-biased for an NPN audio-frequency small-signal application. This array provides a variety of features that make it ideal for a range of audio-frequency applications.

Description

The DMG9640N0R is a pre-biased NPN small-signal audio-frequency transistor array. It consists of four NPN transistors, each with its own emitter, base and collector, packaged in a single package. Each transistor is biased separately and has a current gain of 40. The thermal resistance of the transistor is also very low, making it ideal for audio applications. Additionally, the quiescent current of the array is very low; this helps to reduce power consumption and improve stability.

Features and Benefits

The DMG9640N0R offers a range of features that make it ideal for audio applications. Firstly, its low thermal resistance ensures that all of the transistors remain stable, even at high current and voltage levels. Secondly, the array’s quiescent current is very low, meaning that it draws less power, which is ideal where power consumption is important. Finally, the integrated Ebers-Moll equation allows for precise calculation of the array’s voltage, current and power gain under various conditions.

Applications

The DMG9640N0R is most commonly used in audio systems, due to its low quiescent current, excellent thermal resistance, and high gain. It is also used in power supplies and instrumentation due to its ability to deliver high current and voltage levels. Additionally, it is used in many consumer electronic devices, such as mobile phones, digital audio players, multimedia speakers, and digital cameras.

Working Principle

The DMG9640N0R is a pre-biased NPN transistor array, meaning that each emitter is already connected to a common positive voltage source. This means that the transistor array will connect the voltage source to the collector, allowing current to flow through the transistor. The current gain of the transistor can then be adjusted by changing the base supply voltage. Additionally, the array’s Ebers-Moll equation allows for precision calculations of the array’s voltage, current, and power gain.

Conclusion

The DMG9640N0R is a pre-biased NPN small-signal audio-frequency transistor array that is ideal for a variety of audio applications. It offers a range of features that make it highly stable and power efficient, including its low thermal resistance, low quiescent current, and integrated Ebers-Moll equation. It is most commonly used in audio systems, power supplies, and consumer electronics devices.

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