Timeline for Why is the PCB so large on this SMPS?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Jul 15, 2017 at 18:18 | comment | added | D.A.S. | possibly not, the breadboard, as the contacts are floating from the plastic and the BB contacts don't get as much heat from the leads. But then again anything is possible. Polystyrene melts pretty low at 180'C | |
| Jul 15, 2017 at 15:02 | comment | added | Blair Fonville | good info. Thanks. Just to be clear, I said it would melt a breadboard, not a printed board. | |
| Jul 15, 2017 at 8:22 | comment | added | D.A.S. | A big difference in active area switch size for a TO-220, and power rating, Pd and its reciprocal RdsOn resistance allows higher current. But if solder doesn't melt a board , neither will 125'C, yet Arrhenius Law will accelerate aging 2x rate per 10~12'C rise above room temp , but can possibly burn your finger if 20% loss at 25W | |
| Jul 15, 2017 at 8:17 | history | edited | D.A.S. | CC BY-SA 3.0 |
added 2 characters in body
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| Jul 15, 2017 at 7:31 | comment | added | Blair Fonville | I was browsing around looking to buy a few of these just now, and came across this: LM2596. This is crazy. 3 Amps, the size of a linear regulator, adjustable, huge input range, and its max operating temperature is 125'C. It would melt through a breadboard pretty quick if allowed, but so versatile. It even has a power switch! ti.com/lit/ds/symlink/lm2596.pdf | |
| Jul 15, 2017 at 6:50 | history | answered | D.A.S. | CC BY-SA 3.0 |