I am doing an Arduino project. The design specifies a BD139 transistor.
http://www.discountelectronicsstore...standard-bipolar-npn-power-transistors-bd139/
To avoid paying £3 postage on a 50p transistor, I'd like to get this at Maplins. Unfortunately, the very nice and helpful guy at the shop says he knows all about resistors, capacitors, and diodes, but not about transistors. So he couldn't help.
Can anyone tell me which transistor in the Maplins catalogue is equivalent to this BD139?
http://www.discountelectronicsstore...standard-bipolar-npn-power-transistors-bd139/
To avoid paying £3 postage on a 50p transistor, I'd like to get this at Maplins. Unfortunately, the very nice and helpful guy at the shop says he knows all about resistors, capacitors, and diodes, but not about transistors. So he couldn't help.
Can anyone tell me which transistor in the Maplins catalogue is equivalent to this BD139?