DCX142JH-7

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DCX142JH-7 is a transistor array manufactured and sold by ON Semiconductor, a renowned name in the field of power electronics. This pre-biased transistor array features a wide dynamic range of working voltages and is suitable for applications in automotive and industrial electronics. Its offering various features such as high reliability and low power consumption, have made it a popular choice for a variety of circuit designs.

The DCX142JH-7 consists of two high-frequency PNP transistors, each with a common emitter, collector and base electrodes. An integrated resistor of preset value acts as the emitter bias and serves to keep the forward bias current flow to the emitter junction. This enables the transistor to attain its maximum power capability as well as better thermal stability. Initially it provides the gate bias voltage to the two transistors so that they operate at an ideal quiescent state. This preset bias voltage is adjustable with the help of a potentiometer. However, this adjustment is limited within a predefined range.

The working principle of the DCX142JH-7 involves the transistor array forming an independent amplifier with input at the base with the collector and emitter connected to output and input terminals respectively. Initially, the collector bias voltage is preset and the emitter bias current is set. With the right input voltage at the base, the transistors start operating. The input voltage is amplified, while the collector-emitter voltage is kept within limits of negative or positive rail. This enables enhanced efficiency and better gain when compared to other transistor based devices. The two transistors are employed to achieve an ideal current mirror and the transistor array also acts as a Darlington pair.

Applications of the DCX142JH-7 include portable electronics, automotive, industrial and communication electronics. Its use in portable electronics is due to its suitability in consuming low power. Automotive and industrial electronics benefit from its low driver power requirement and reduced losses due to compact size. The transistor\'s robust features, such as the high reliable prebiased construction and wide dynamic range, makes it ideal for communication applications.

In summary, the DCX142JH-7 is a prebiased transistor array manufactured by ON Semiconductor. It features two high-frequency PNP transistors, each with a common emitter, collector and base electrodes, and is suitable for a variety of applications in automotive and industrial electronics, portable electronics, and communication electronics. The two transistors are used to achieve an ideal current mirror and the transistor array acts as a Darlington pair. Its design enables enhanced efficiency and better gain when compared to other transistor based devices.

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