Jump to content
Electronics-Lab.com Community

n-chanel eMOSFET data?


Recommended Posts

Hello from NE PA,

Where do you all find data on MOSFET transistors?

I look on ebay  for MOSFETs but most do not have specs so you have to search for
a data sheet, download it, open it, and find it's not what you want!

I am looking for an n channel  eMOSFET for a class D amplifier that has 150 to 200 volt
drain to source. Some 20 to 40 ma for current.

I find lots of power switching MOSFETs references.

Are there any good books on using MOSFET transistors?

thanks in advance,

Link to comment
Share on other sites

An audio amplifier with a supply voltage as high as 200V will produce about 500W into an 8 ohm speaker and produce almost 12A peak, not a few milli-amps.

Oh, is your amplifier going to use an old output transformer that has not been used for 50 years? Then its output power might be 1.8W into 8 ohms. 

Link to comment
Share on other sites

Thanks for the reply.

I have a a 400 microsecond pulse every 20 ms that I wish to amplify. I need about 100 volts so I an thinking I need a 150-200v transistor.

I need to preserve the varying amplitude so I can not just emulate it with a switching transistor.

Speaking of transformers; I tried amplifying it with a 2n7000 n channel MOSFET using an audio transformer in reverse (input into the 8 ohm windings ) but I could not get a decent output pulse in spite of using various combination of diodes.


HarryA  \../

To close this out. I found mouser.com to be helpful as they have a system of filters that makes it easier to find what you want - with some effort.

I ordered the n-channel ZVNL120 eMOSFETs from then; 200v and 120ma.

The book "Electronic Devices and Circuits" by "Schaum's easy outlines" has good information on circuit design using bipolar, FETs, and MOSETs tranistors.




Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...