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Topic: Part ID on the Mega 2560 (Read 669 times) previous topic - next topic

nadana

Nov 29, 2012, 09:26 am Last Edit: Nov 29, 2012, 09:40 am by nadana Reason: 1
What are those round things behind power jack? Mine says 2E 47 25S. Just curious. My guess is SMT capacitor 47uF. Then What 2E ans 25S stand for? Either one of them should be voltage. No?
Thank you.

westfw

The exact meanings of the markings are vendor specific.
I would guess that "2E" is a "lot number", and 25S has the voltage (25?) and perhaps a series identifier (tolerence, temperature range, etc.)

nadana

I just found a datasheet close to it. http://elcodis.com/parts/1972335/VES-100M1CTR-0405.html#datasheet
According to this paper, 2E is date code, 47 means 47 ohms, 25S means 25Volt series S, huh?
Thank you.

CrossRoads

47 would indicate 47uF, not 47 ohm
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Krupski


What are those round things behind power jack? Mine says 2E 47 25S. Just curious. My guess is SMT capacitor 47uF. Then What 2E ans 25S stand for? Either one of them should be voltage. No?
Thank you.


My 2560mega has 2 of them. They are marked:

D1
47
25V

They are 47 uF, 25 volt SMD capacitors.
Gentlemen may prefer Blondes, but Real Men prefer Redheads!

nadana


insazacorp

#6
Nov 30, 2012, 04:14 pm Last Edit: Nov 30, 2012, 04:17 pm by insazacorp Reason: 1
Thanks Krupski and CrossRoads. I was also wondering what those parts where. SMD Capacitor make sense. If I am not wrong, I believe they are a part of the Voltage Regulator circuit, is that correct?

Krupski


Thanks Krupski and CrossRoads. I was also wondering what those parts where. SMD Capacitor make sense. If I am not wrong, I believe they are a part of the Voltage Regulator circuit, is that correct?


Why not look at the schematic? http://arduino.cc/en/uploads/Main/arduino-mega2560_R3-schematic.pdf

Those caps are PC1 and PC2 in the diagram... and you're right, they are part of the voltage regulator.
Gentlemen may prefer Blondes, but Real Men prefer Redheads!

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