how to read tantalum caps

spooney · 6th December 2007, 02:18 AM

I'm getting ready to order more parts for my orion 2150gx and i'm not sure what the value is on the tantalum caps in this amp.I can see they are 25 volt but the value is listed as what looks like 2u2 . I'm not sure if these are 2.2 microfarad or 22 or maybe I'm way off.If somebody could shed some light it would be greatly appreciated.

17DoubleE · 6th December 2007, 03:08 AM

I'd guess the position of the "u" is the decimal point (2.2uF). Do you know what mfg's cap they are? We could find a datasheet to confirm, or could you measure one of them?

spooney · 6th December 2007, 11:19 PM

i don't see anything on the caps that would indicate the manufacturer of them.

dark_avenger · 10th December 2007, 12:24 AM

they would be 2.2f not sure why they write it 2u2 but for some reason they do...

spooney · 10th December 2007, 02:37 AM

awesome thanks for the reply.Thats exactly the info I needed

ocool_15 · 10th December 2007, 04:15 AM

2u2 is 2.2uF.

"That is just the European notation. They replace the decimal point with the multiplier letter.This prevents the possible loss of the decimal point in transcribing data. For instance, 4.7K = 4K7, 1.2K = 1K2, 1M = 1M and so on.

It's handy, and less error prone."
DIY Reference link - Aron Nelson

Perry Babin · 10th December 2007, 04:19 AM

2.2uF, not 2.2F

They use the unit symbol in place of the decimal. It saves space and is easier to see.

6th December 2007, 02:18 AM	#1
spooney diyAudio Member Join Date: Dec 2006	how to read tantalum caps I'm getting ready to order more parts for my orion 2150gx and i'm not sure what the value is on the tantalum caps in this amp.I can see they are 25 volt but the value is listed as what looks like 2u2 . I'm not sure if these are 2.2 microfarad or 22 or maybe I'm way off.If somebody could shed some light it would be greatly appreciated.

10th December 2007, 04:19 AM	#7
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	2.2uF, not 2.2F They use the unit symbol in place of the decimal. It saves space and is easier to see. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

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6th December 2007, 03:08 AM	#2
17DoubleE diyAudio Member Join Date: Nov 2007	I'd guess the position of the "u" is the decimal point (2.2uF). Do you know what mfg's cap they are? We could find a datasheet to confirm, or could you measure one of them?

6th December 2007, 11:19 PM	#3
spooney diyAudio Member Join Date: Dec 2006	i don't see anything on the caps that would indicate the manufacturer of them.

10th December 2007, 12:24 AM	#4
dark_avenger diyAudio Member Join Date: Sep 2007	they would be 2.2f not sure why they write it 2u2 but for some reason they do...

10th December 2007, 02:37 AM	#5
spooney diyAudio Member Join Date: Dec 2006	awesome thanks for the reply.Thats exactly the info I needed

10th December 2007, 04:15 AM	#6
ocool_15 diyAudio Member Join Date: Nov 2004 Location: sk	2u2 is 2.2uF. "That is just the European notation. They replace the decimal point with the multiplier letter.This prevents the possible loss of the decimal point in transcribing data. For instance, 4.7K = 4K7, 1.2K = 1K2, 1M = 1M and so on. It's handy, and less error prone." DIY Reference link - Aron Nelson

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