8 Threads found on edaboard.com: bc547 bc337
50mA is close to the 100mA maximum allowed current for the bc547. If the base current is 1/10th the collector current then its typical saturation voltage loss is less than 0.2V.
A bc337 transistor is much more powerful so with its base current 1/10th the 50mA collector current its typical saturation voltage loss is only 0.03V.
Are you using the tr
Analog Circuit Design :: 01-15-2015 20:05 :: Audioguru :: Replies: 6 :: Views: 335
Could anyone point me in the direction of a suitable discrete transistor amplifier schematic that would be suitable for amplifying the audio signal from an ipod before it goes into the control pin of a 555. Preferably using bc547, BBC548, BC549, BC557, BC558, BC559, C1815, A1015, BC327 or bc337.....all of which I have plenty
Hobby Circuits and Small Projects Problems :: 11-11-2012 01:33 :: IanP :: Replies: 10 :: Views: 1940
General Purpose Amplifier Transistors.
2N4401=NPN replacements: bc337, bc547, replacements: BC327, BC328,
Electronic Elementary Questions :: 02-05-2012 06:19 :: mister_rf :: Replies: 1 :: Views: 7947
hello ...i just wanted to know that which is the equivalent transistor for bc547?????
RF, Microwave, Antennas and Optics :: 07-01-2010 03:15 :: sanjubluerock3 :: Replies: 2 :: Views: 21968
i would like to know about the bc547 AND bc337A difference between two transistors, can i use it alternatively.
thanks & regards
Analog IC Design and Layout :: 08-20-2009 13:25 :: dayal :: Replies: 5 :: Views: 4044
I was having a look at the "Amplified Ear" project over at ( ) and noticed that 3 of the 4 transistors were bc547 and only one was a bc337.
To this effect I have two questions:
1. AFAIK, the bc337 seems to be a better choice in every way over the bc547, so why did the author u
Analog Circuit Design :: 07-06-2009 12:56 :: KamalS :: Replies: 8 :: Views: 12177
I don't check if it's a software problem. But, you use a bc547 transistor, and you don't say anything about what kind of relay you used. BC546/bc547/BC548 transistors gain (hfe) are dependents of how much current drops from collector to emiter. First, base resistor must be lower 1K or less. I recomend that change the transistor to a bc337 is (...)
Microcontrollers :: 12-30-2005 06:15 :: penrico :: Replies: 10 :: Views: 1526
To drive piezo-buzzers you can use any general purpose NPN transistors ..
Here are some examples:
In general, select one with Vce ≥ 30V and Ic ≥ 100mA ..
Microcontrollers :: 12-27-2005 21:28 :: IanP :: Replies: 1 :: Views: 571