Hi all,
Looking in my old stuffs, I found a Chinese rice light(serial set) circuit board in working condition. I found 2 PCR406 devices and expected it to be transistors and when I googled for datasheet, came to find that they were SCR's.. They control the pattern on the 2 lines of tiny bulbs. These 2 SCR's are controlled by a chip which has no id as its the usual Chinese black drop type covered custom chip. I checked out the datasheet and found the SCR's to handle 400v max and 800mA rating.. I'm new with SCR's, so could somebody help me how its different from transistors? I read abt it on Wikipedia and all, but what makes it more powerful over transistors? Also can I run a couple of led's on the output lines instead of those bulbs? I read its output is current limited. What voltage and current should I expect? I have made a sketch of details of all what I could find on the board.
Thanks You.
Looking in my old stuffs, I found a Chinese rice light(serial set) circuit board in working condition. I found 2 PCR406 devices and expected it to be transistors and when I googled for datasheet, came to find that they were SCR's.. They control the pattern on the 2 lines of tiny bulbs. These 2 SCR's are controlled by a chip which has no id as its the usual Chinese black drop type covered custom chip. I checked out the datasheet and found the SCR's to handle 400v max and 800mA rating.. I'm new with SCR's, so could somebody help me how its different from transistors? I read abt it on Wikipedia and all, but what makes it more powerful over transistors? Also can I run a couple of led's on the output lines instead of those bulbs? I read its output is current limited. What voltage and current should I expect? I have made a sketch of details of all what I could find on the board.
Thanks You.
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