Page 1 of 1
Replacement for BLF278
Posted: Wed Mar 15, 2017 1:51 pm
by OldskoolPirate
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
Re: Replacement for BLF278
Posted: Wed Mar 15, 2017 6:22 pm
by RF-Head
Re: Replacement for BLF278
Posted: Thu Mar 16, 2017 9:32 am
by Radio Garfield
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.
Re: Replacement for BLF278
Posted: Thu Mar 16, 2017 3:01 pm
by Analyser
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.
Re: Replacement for BLF278
Posted: Thu Mar 16, 2017 3:07 pm
by Analyser
Re: Replacement for BLF278
Posted: Thu Mar 16, 2017 4:07 pm
by Radio Garfield
@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!
