Capacitor identification in the UK

Projects General Guidance
1

Hello

I'm going to build the ignition coil fencer and I have a question about capacitor identification. The diagram says 4u7 for a capacitor. Is this 4.7 micro farads or 47 micro farads?

Thank you.

1010×474 8.31 KB

2

4.7 uf (microfarads)

3

Yes, it is 4.7μF.
The units identifier is used in place of the decimal point.

It is much easier to see the μ symbol than a very small or poorly printed decimal point.

Similarly with resistors 5k6 is used to represent 5.6kΩ,
and 8R2 represents 8.2Ω.

This practice is not limited to the UK.

4

JohnLincoln:
This practice is not limited to the UK.

In fact, it has virtually no connection to the UK. More a European thing, first noted in "Elektor" and similar.

5

Paul__B:
In fact, it has virtually no connection to the UK. More a European thing, first noted in "Elektor" and similar.

But it is used in the UK and that's what I asked.

Thanks for the info. Makes sense too.