Allicdata Part #: | BD679AGOS-ND |
Manufacturer Part#: |
BD679AG |
Price: | $ 0.00 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | ON Semiconductor |
Short Description: | TRANS NPN DARL 80V 4A TO225 |
More Detail: | Bipolar (BJT) Transistor NPN - Darlington 80V 4A ... |
DataSheet: | BD679AG Datasheet/PDF |
Quantity: | 1899 |
Series: | -- |
Packaging: | Bulk |
Part Status: | Active |
Transistor Type: | NPN - Darlington |
Current - Collector (Ic) (Max): | 4A |
Voltage - Collector Emitter Breakdown (Max): | 80V |
Vce Saturation (Max) @ Ib, Ic: | 2.8V @ 40mA, 2A |
Current - Collector Cutoff (Max): | 500µA |
DC Current Gain (hFE) (Min) @ Ic, Vce: | 750 @ 2A, 3V |
Power - Max: | 40W |
Frequency - Transition: | -- |
Operating Temperature: | -55°C ~ 150°C (TJ) |
Mounting Type: | Through Hole |
Package / Case: | TO-225AA, TO-126-3 |
Supplier Device Package: | TO-225AA |
Base Part Number: | BD679 |
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Introduction
The BD679AG is a kind of small signal single transistor with an NPN junction. This is a simple transistor that is popular in modern electronics as it is suitable for a variety of applications. This transistor is made with a wide variety of materials, including silicon and gallium arsenide. It has an extremely low threshold voltage and a very high current gain. This makes it an ideal choice for applications that require a high performance transistor.
Application field
The BD679AG transistor is generally used in digital circuits where high speed, low power, and high performance levels are required. It is used to amplify electrical current and voltage, as well as provide switching capabilities. It is commonly used in digital logic circuits, such as logic gates, as well as audio amplifiers and radio frequency amplifiers.
Because of its low power requirements, the BD679AG transistor is also widely used in battery-powered devices such as toys, remote controls, and medical devices. It is also often used as an amplifier in small audio systems, as well as in power management circuits.
Working principle
The transistor is a semiconductor device that is made of three regions; base, collector and emitter. The three regions are separated by a thin layer of insulating silicon dioxide. The electrons that enter the base region attract positively charged ions and create a space charge layer around the base region.
When a small current is passed through the base region, the current also passes through the rest of the transistor. This is known as the ‘amplification’ effect. The amount of current that can be amplified is dependent on the current gain of the transistor, and this is usually marked either as hFE or Hfe, depending on the manufacturer.
In general, the BD679AG transistor is designed to work with a supply voltage of 5.0V and a gain of 40. Due to its low power consumption and high current gain, it is an ideal choice for high performance circuits.
Conclusion
The BD679AG transistor is a versatile single-transistor solution suitable for a number of applications. It has an extremely low threshold voltage and a very high current gain, making it an ideal choice for digital logic circuits, audio amplifiers and power management circuits. It is also widely used in battery-powered devices such as toys and remote controls. In terms of its working principle, the transistor is a semiconductor device that amplifies current and voltage. Although the BD679AG transistor has a gain of 40, its performance will vary depending on the current and voltage input.
The specific data is subject to PDF, and the above content is for reference
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