2SA2007E

Series:	--
Packaging:	Bulk
Part Status:	Not For New Designs
Transistor Type:	PNP
Current - Collector (Ic) (Max):	12A
Voltage - Collector Emitter Breakdown (Max):	60V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 400mA, 8A
Current - Collector Cutoff (Max):	10µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	320 @ 2A, 2V
Power - Max:	25W
Frequency - Transition:	80MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-220-3 Full Pack
Supplier Device Package:	TO-220FN

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2SA2007E Application Field and Working Principle

Introduction

The 2SA2007E is a general purpose NPN transistor that is used in a variety of application fields. The 2SA2007E is a part of a wide variety of transistors ranges, collectively known as the 2SA2007E transistor family. This complex offers a variety of options for different application fields. This section will look closer into the application field and functionality of the 2SA2007E, regarding its working principle.

Application Field

The application field of the 2SA2007E can be placed into a number of different categories. It is used particularly in the following application fields:

• Audio amplifiers and oscillators.
• General purpose and medium power amplifiers.
• Switch circuits.
• DC/DC Converters.
• Small-signal amplifiers.

In most of these application fields, the 2SA2007E is used as a transistor amplifier. The reason why these fields are used more often is because the 2SA2007E can cope with a great range of power within their saturation region. The 2SA2007E is very powerful in comparison to other available transistors. This makes it well-suited for switching circuits and as a dual-polarity amplifier, respectively. The latter makes usage of the 2SA2007E very suitable for circuits such as DC/DC converters and audio or general purpose amplifiers.

Working Principle

The 2SA2007E operates in two very different ways, the two being saturation and active. In the saturation mode, the collector’s current flows in ratio to the base current, without a limit. The 2SA2007E will then be in saturation mode whenever its base emitter voltage becomes approximatively 0.6V or less. The active mode applies in the moment when the collector voltage is determined by its resistor. This will happen when the collector-emitter voltage reaches approximately 0.7V or less. During the active mode, the transistor will work as an open switch, in which the current mainly flows through the base for a very small amount of time.

Conclusion

The 2SA2007E is an NPN general purpose transistor, which is used across a variety of applications. These are mainly audio and signal amplifiers, switch circuits and DC/DC converters. The 2SA2007E operates in two modes, being active and saturation. During active mode, the transistor works as an open switch and its collector current is determined by the resistor. Whereas during saturation mode, the collector current is limited by the base-emitter voltage, becoming approximatively 0.6V or less.

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