0
\$\begingroup\$

I see some SMT wire wound inductors are named like 3R3 or 4R5, much like a resistor, why so? I expected them to be like 4H5.

\$\endgroup\$

1 Answer 1

3
\$\begingroup\$

The "R" in the value doesn't stand for "resistance", it stands for "radix point". This makes the designation language-/localization-independent, since different regions use different symbols for the radix point, e.g. ".", ",", etc.

\$\endgroup\$
1
  • \$\begingroup\$ That's one I would have never figured out haha I was thinking about something related to impedance, but not this \$\endgroup\$
    – mFeinstein
    Commented Nov 15, 2013 at 1:58

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.