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Transistors - Bipolar (BJT) - Arrays

The PMBT3946VPN,115 is a resistor-loaded Darlington transistor array which is specially designed for high current, low voltage applications. It provides high gain, low power dissipation, and fast switching performance in a variety of applications across the automotive, consumer, and industrial markets.

Application Fields

The PMBT3946VPN,115 is used in a wide variety of applications such as the following:

• Power supplies
• Motor and solenoid control
• High-current switching applications
• Audio power amplifiers and switching systems
• Logic-level "gates"

Working Principle

The PMBT3946VPN,115 is an array of transistors arranged in a unique Darlington configuration. This arrangement provides each transistor in the array with high current gain and fast switching times, resulting in consistent and reliable performance. The resistor present in the Darlington array serves to protect the transistor from over-current faults, and also helps to set the gain of the array.

The array provides a total current gain of 500,000, yielding high performance in even the most demanding applications. In addition, the chip\'s low Vce (collector-emitter voltage) and Vce(sat) (collector-emitter saturation voltage) characteristics provide effective protection in cases of short circuit or current overloading.

The PMBT3946VPN,115 has an operating temperature range of -55°C to +175°C, making it suitable for use in a wide variety of automotive, consumer, and industrial applications.

Conclusion

The PMBT3946VPN,115 is a resistor-loaded Darlington transistor array which offers high gain and fast switching performance in a variety of applications in the automotive, consumer and industrial sectors. The array\'s unique configuration provides high current gain and reliable performance, and its low Vce and Vce(sat) characteristics provide effective protection in cases of short circuit or current overloading, making it suitable for use in a wide variety of high-current, low-voltage applications.

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