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Im pretty sure the 2sj148's are powerful enough for what i need to do. The one thing im not sure on is the gate on voltage. I was under the impression p-channel mosfets needed a 0 to negative __ voltage to turn on, opposite of a a 0 to +3.5v of how its running the n channel mosfet.
All i...
Just wanted to give an update. Those replacement 2SK975's dropped right in and worked like they are supposed to. Its making a nice 0-8v square wave again now.
I do have a new problem though. The way this ecu triggers the coil is by grounding the outputs that have a ~200ohm pull up resistor...
Thanks for the info. How do you know that there should be 2S at the beginning of the part#?
Im an electronics noob, sorry. I cant read chinese or whatever that datasheet was but i found 2SK Semiconductor (Transistor, diode, IC) Cross reference but looking at this the pins seem backwards...
Yes, i tried crossing them with no luck. The transistor? that came out has K940 as a part # and 5D on a second line on 1 and 41 on the other 3, guessing the second line is a batch or date #. I wasnt able to find these anywhere, a datasheet for them or anything that had them listed to cross to...
I am trying to repair an old standalone ECU. I had 2 bad ignition transistors out of 4. I google searched the # on the transistor but came up with nothing. I dont have the old ones in front of me but can add their part # in later.
A 0-3.3v signal was going in but nothing was coming out of...
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