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Author Topic: 12 V Regulator  (Read 705 times)
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Hi. I'm using a 12 V regulator to power some computer fans. Is it necessary to use capacitors with the regulator or will it be fine without them. Thanks.
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In general, you should use what the datasheet says.

If a (relatively) constant load like a fan is present, they are probably not necessary.
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If a (relatively) constant load like a fan is present, they are probably not necessary.
Yes they are.
Anyway a fan is inductive and noisy so you defiantly need them with a fan.

There has been a flurry of these posts recently, I don't know what caused it but if any professional electronic engineer insisted in not putting caps on regulators he would be sacked, and quite rightly. 
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Thanks. The data sheet says nothing about capacitors. What amount should I use?
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I doubt that can you link the data sheet?
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Here is the data sheet.
http://www.nteinc.com/specs/900to999/pdf/nte966.pdf
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Page 2 second paragraph. They say 0.33uF, and all the example circuits have 0.1uF on in and out.
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Thank you so much.
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There has been a flurry of these posts recently, I don't know what caused it ...

It's a conspiracy to rile you up.  They switch back and forth between voltage regulator capacitors, bypass capacitors on ICs, and the capacitor on the shift register clock line.

Don
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