Replacement for BLF278

Everything technical about radio can be discussed here, whether it's transmitting or receiving. Guides, charts, diagrams, etc. are all welcome.
Post Reply
User avatar
OldskoolPirate
no manz can test innit
no manz can test innit
Posts: 208
Joined: Thu Feb 18, 2016 9:32 pm

Replacement for BLF278

Post by OldskoolPirate » Wed Mar 15, 2017 1:51 pm

Hi I have a 300w pa with a blown chip but I can't source another one for a good price. Anyone know any other chip I could use in place of it ? Thanks
:tup

RF-Head
tower block dreamin
tower block dreamin
Posts: 271
Joined: Wed Oct 15, 2014 9:25 pm

Re: Replacement for BLF278

Post by RF-Head » Wed Mar 15, 2017 6:22 pm

If you want a 100% original then you to enigma-shop

http://enigma-shop.com/index.php?option ... _pathway=2

User avatar
Radio Garfield
big in da game.. trust
big in da game.. trust
Posts: 57
Joined: Mon Jan 30, 2017 7:16 pm

Re: Replacement for BLF278

Post by Radio Garfield » Thu Mar 16, 2017 9:32 am

http://enigma-shop.com/index.php?option ... &Itemid=66

Check the output power and working voltage.
Compare the datasheets for these devices:
BLF183XR, MRF151G, MRF6V2300NB, MRFE6VP6300H, SD2932

BUT, its not just simple replacement, one instead the other! Best thing is to buy another BLF278 if You have amplifier designed for that device.

User avatar
Analyser
tower block dreamin
tower block dreamin
Posts: 319
Joined: Fri Sep 26, 2014 9:11 pm

Re: Replacement for BLF278

Post by Analyser » Thu Mar 16, 2017 3:01 pm

Radio Garfield wrote: Thu Mar 16, 2017 9:32 am http://enigma-shop.com/index.php?option ... &Itemid=66

Check the output power and working voltage.
Compare the datasheets for these devices:
BLF183XR, MRF151G, MRF6V2300NB, MRFE6VP6300H, SD2932

BUT, its not just simple replacement, one instead the other! Best thing is to buy another BLF278 if You have amplifier designed for that device.
Out of all those listed the MRF151G is the only drop-in replacement. SD2932 is similar but in a lot of circuits it goes unstable so steer well clear.

Enigma also have MRF151Gs http://enigma-shop.com/index.php?option ... wer-mosfet.

User avatar
Analyser
tower block dreamin
tower block dreamin
Posts: 319
Joined: Fri Sep 26, 2014 9:11 pm

Re: Replacement for BLF278

Post by Analyser » Thu Mar 16, 2017 3:07 pm


User avatar
Radio Garfield
big in da game.. trust
big in da game.. trust
Posts: 57
Joined: Mon Jan 30, 2017 7:16 pm

Re: Replacement for BLF278

Post by Radio Garfield » Thu Mar 16, 2017 4:07 pm

@Analyser.
Off course. I told him that its not simple exchange device-for-device, but IMHO there is one simple and only solution.
Either he will buy it, or not!

:lol: :whistle :)

Post Reply