Mar 21, 2013 #1 M myfaithnka Advanced Member level 4 Joined Nov 5, 2010 Messages 106 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,298 Activity points 2,022 hi all, i am trying to make a fading led circuit for Easter, please suggest me a low power equavalent pair (npn-pnp) I have bjts like bc548,bc547,bc 107 available here. sl100 and sk100 is not required here i assume (10 leds, 12 V VCC ). can some one share a link explaining the complementary pairs for this transistors ? thanks in advance.
hi all, i am trying to make a fading led circuit for Easter, please suggest me a low power equavalent pair (npn-pnp) I have bjts like bc548,bc547,bc 107 available here. sl100 and sk100 is not required here i assume (10 leds, 12 V VCC ). can some one share a link explaining the complementary pairs for this transistors ? thanks in advance.
Mar 21, 2013 #2 captainshahid Member level 3 Joined Feb 29, 2012 Messages 58 Helped 8 Reputation 16 Reaction score 8 Trophy points 1,298 Location india, bhopal Activity points 1,586 http://www.electronicecircuits.com/wp-content/uploads/2009/11/BD140-pnp-BD139-npn-transistor-pin-Configuration-pinout.jpg
http://www.electronicecircuits.com/wp-content/uploads/2009/11/BD140-pnp-BD139-npn-transistor-pin-Configuration-pinout.jpg
Mar 21, 2013 #3 G godfreyl Advanced Member level 5 Joined Apr 18, 2012 Messages 1,974 Helped 632 Reputation 1,266 Reaction score 621 Trophy points 1,393 Activity points 12,772 There's a nice list of low power NPN transistors and their PNP complements here: https://users.tpg.com.au/gerskine/greg/PNP%20Small%20Signal%20Transistors.htm
There's a nice list of low power NPN transistors and their PNP complements here: https://users.tpg.com.au/gerskine/greg/PNP%20Small%20Signal%20Transistors.htm