Utsource Update: Best Mosfet Products for audio amplifier
Today’s ever-growing market of the Electronics Industry is expanding to a greater extent and there has always been a special aspect of the Audio amplifiers in this industry, and for the amplification purpose, we often use Transistors for our circuit requirement.
We can use a different type of Transistors like we can use conventional BJTs (Bipolar Junction Transistors) like NPN or PNP type or we can use a special type of transistor MOSFETs (Metal Oxide Semiconductor Field Effect Transistor).Now in this article, we are going to discuss different MOSFETs which are used in different audio amplifier circuits and their detailed specifications.
What is a MOSFET?
A metal-oxide-semiconductor field-effect transistor (MOSFET, MOS-FET, or MOSFET) is a field-effect transistor (FET with an insulated gate) where the voltage determines the conductivity of this Transistor. It is mainly used for switching or amplifying signals. The ability to change conductivity with the amount of applied voltage can be used for amplifying or switching electronic signals. MOSFETs are now even more common than BJTs (bipolar junction transistors) in digital and analog circuits and it is widely used in audio amplifier circuits.
The two main type of MOSFETs
There are mainly two types of MOSFETs available based on the manufacturing process and the available channels in the MOSFETs, these are Depletion type MOSFETs and Enhancement type MOSFETs.
1. Depletion Type MOSFET
The transistor requires the Gate-Source voltage (V GS ) to switch the device to the OFF mode. The depletion-mode MOSFET is equivalent to a Normally Closed switch and it does the same operation.
2. Enhancement Type MOSFET
The transistor requires a Gate-Source voltage (V GS ) to switch the device to ON mode. The enhancement-mode MOSFET is equivalent to a Normally Open switch and it does the same operation.
Now we will discuss some best MOSFETs available in the market for the use of audio amplifiers.
1. 2SK2221
The 2SK2221 is a special type of MOSFETs which is used mainly in audio amplification devices and it is also used for the Low-Frequency Power Amplifier Circuits.
There is some complementary MOSFETs of this like 2SJ351, 2SJ352 which also shows same type of properties and also gives the same effect upon using in the circuit
UTSource 2SK2221 Price: US $ 9.46
Some Key Features of 2SK2221
I. High power gain is a feature of this particular MOSFET.
II. The 2SK2221 also shows Excellent frequency response.
III. High speed switching is another unique feature.
IV. This provides a Wide area of safe operation.
V. This is an Enhancement-mode type device.
VI. Good complimentary characteristics are shown by 2SK2221.
VII. Equipped with gate protection diodes for better protection in the circuits.
2. 2SJ352
As discussed already above that the 2SJ352 is a complementary device to the 2SK2221 and all the characteristics as shown by 2SK2221 is almost same in the 2SJ352 and also it can be used as a good audio amplifier for the Low-frequency amplifier circuits.
UTSource 2SJ352 Price: US $ 9.46
Some Key Features of 2SJ352
I. High power gain is a feature of this particular MOSFET.
II. Good complimentary characteristics are shown by 2SJ352.
III. Equipped with gate protection diodes for better protection in the circuits.
IV. It has Drain to source voltage -180 V.
V. It has Gate to source voltage rating as -200 V.
VI. It also provides a channel Temperature of 150 degree Celsius which provides it with additional security parameters.
VII. The Absolute Maximum Temperature Ratings of the Device is 25 degree.
3. 2SK215
This is a special type of MOSFET which is used for High frequency and low-frequency power amplifiers and it is also used for high-speed switching.There are also some good alternatives available for the 2SK215, these are 2SJ76, 2SJ77, 2SJ78 and 2SJ79.
UTSource 2SK215 Price: US $ 0.03
Some Key Features of 2SK215
Here are some key-specifications and use of 2SK215 MOSFET
I. This particular MOSFET is very useful for Suitable for direct mounting
II. It can also be used as High forward transfer admittance
III. Excellent frequency response is shown when it is used in audio amplifier devices.
IV. This MOSFET is of Enhancement-mode.
4. 2SK1058
This MOSFET can be used as Low Power Amplification device and there are also alternatives available in the market which are complementary to the 2SK1058 MOSFET, These are 2SJ160, 2SJ161 and 2SJ162.
UTSource 2SK1058 Price: US $ 6.76
Some Key Features of 2SK1058
I. Good frequency characteristics are shown by this device,
II. This MOSFET can be used as High-speed switching action.
III. Wide area of safe operation is given by this MOSFET so it provides it with another key point advantage for using it as an amplifier in audio amplification devices.
IV. This MOSFET is of Enhancement-mode type.
V. Good complimentary characteristics are shown by this type of device.
VI. Equipped with gate protection diodes so it provides no damage capability and also it prevents short-circuit.
VII. This MOSFET is Suitable for audio power amplifier.
5. 2SK216
This MOSFET can be used as high and low-frequency power amplifier devices and it also can be used in high-speed switching operations.There are some analogous components available for this device these are2SJ76, 2SJ77, 2SJ78 and 2SJ79 these also shows almost similar properties to 2SK216
UTSource 2SK216 Price: US $ 0.2
Some Key Features of 2SK126
I. These MOSFETs are Suitable for direct mounting
II. High forward transfer admittance is shown by the MOSFET 2SK216
III. Excellent frequency response is given by this MOSFET so it is more useful among all the MOSFETs discussed till now
IV. This MOSFET is again of Enhancement-mode type
6. 2SK213
This MOSFET can be used also as high and low-frequency power amplifier devices and it also can be used in high-speed switching operations.There are some analogous components available for this device these are2SJ77, 2SJ78 and 2SK213 these also shows almost similar properties to 2SK213
UTSource 2SK213 Price: US $ 0.3
Some Key Features of 2SK123
I. This particular type of MOSFET is Suitable for direct mounting High forward transfer admittance.
II. Excellent frequency response can be handled by this type of MOSFET which is of Enhancement-mode type.
III. It can also be used in High frequency and low frequency power amplifier circuits.
IV. It can be used as a good MOSFET in high speed switching circuits.
Summary
So in this blog we have discussed about the various type of MOSFETs as well as various good available MOSFETs in today’s Electronics Industry and their usage as Audio Amplifiers , some of them shows a good high speed switching operation or some of them also shows the High frequency and Low frequency power amplifier applications .
There is also much more about the applications so take a deep breath and explore the electronics world, hope for the future and think some day may your own electronic device will be featured in our blog.
