So, if you are looking for a PNP transistor for your amplifier circuit then TIP32 might be your choice or to switch higher current loads more than 2A, try logic level MOSFETS like IRF540N (N-channel) which also operates at 5V.Īlthough TIP has high collector current and current gain, it is fairly simple to control the device since it has an Emitter-Base voltage (VBE) of only 5V and base current of only 120mA. Since it has high collector current of about 2A it can be used for Power switching or large signal amplification.The transistor is mainly known for its high amplification capacity since 2A is not much of a higher capacity. Note: Complete Technical Details can be found at the TIP32C transistor datasheet provided at the end of this page. Collector-Emitter voltage (VCE) is 100 V.Continuous Collector current (IC) is 3A.There will be a similar challenge on the power supply board with the q3 2sd313, replaced by a SC2073 if it's not a BCE pinout.Controls the biasing of transistor, Used to turn ON or OFF the transistorĬurrent flows in through collector, normally connected to loadĬurrent Drains out through emitter, normally connected to ground What are your recommendations on these issue and how can I solve it, still having a good heat dissipation.are We talking about the four U-shaped black heat sinks on that picture. One could mount the transistor backwards, that will bring the legs into the right position, but then you have the metal side not in contact with the heatsink and even worse, it makes it impossible to read the part number. With the changed leg position on the new transistors it is nearly impossible to mount the transistors on the heatsink crossing the legs E and B without risking a contact between all tree pins. Normally that not a big deal to bring the legs into the right position, but these four transistors are mounted on big heat sink which have to sit at a special position on the board, due to limited space around. The old ones are BCE pinout and the new ones have ECB pinout. Original installed are 2sd357 and 2sb527 and I have ordered the recommend replacement SC2690 and SA1220. I use the BOM list for the SX-737 and everything was fine until I came to the Q7 - Q10. The 4 Output Q11 – Q14 shall stay at this stage. I have the power amp AWH-033 in front of me and want to change all the transistors Q1 until Q10.
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