Shift838 Posted March 11, 2017 Share Posted March 11, 2017 (edited) I need to replace a few 12v voltage regulatorson some TI manufactured cards, like 32k, Rs232, etc Should it be this one: #1 at Jameco item # 51334 HERE or #2 at Jameco item # 51335 HERE #1 i have ordered before and it works but part of the regulator is thicker than a 7805 and the front bottom near the led will not allow the stock card to be placed on it again. I also noticed #1 seems to be able to output multiple voltages based on the datasheet. the pictures are just stock photos. Anyone order 12v ones from Jameco before for replacing, and which ones ? or one at Mouser: HERE Edited March 11, 2017 by Shift838 Quote Link to comment Share on other sites More sharing options...
+helocast Posted March 11, 2017 Share Posted March 11, 2017 902127 is what I've always used, but your 51334 suffices. When multiple voltages are listed for fixed regulators, that usually means there are several part numbers in the same series that have same specs, minus voltage of course. Once in a while you run into physical tolerance issues on bulk versus manufacturer listings. A TO-220 outline changes slightly whether it is packaged in tray, rail, flat pack, etc. but not usually enough to cause problems. Quote Link to comment Share on other sites More sharing options...
Shift838 Posted March 11, 2017 Author Share Posted March 11, 2017 902127 is what I've always used, but your 51334 suffices. When multiple voltages are listed for fixed regulators, that usually means there are several part numbers in the same series that have same specs, minus voltage of course. Once in a while you run into physical tolerance issues on bulk versus manufacturer listings. A TO-220 outline changes slightly whether it is packaged in tray, rail, flat pack, etc. but not usually enough to cause problems. I have the Jameco 51334 but it's too thick where the screw goes through and does not allow the case to shut on the LED side. I'm wondering if the Mouser will be better. Quote Link to comment Share on other sites More sharing options...
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