April 2008

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Resistor Color Code

April 8, 2008 in Solderman

Resistor Color Code

Resistor Color Code


1st digit) yellow 4, 2nd band (2nd digit) Violet 7, 3rd band red 2 (number of zeros that follow), means 4 7 00 ohms, 4.7 kilo ohms or kE

For 4 banded ones, MFR 1% first 3 bands represent first three digits, and fourth band stands for the number of zeros that follow. 4.7k will be Yw Vt Bk Bn.

Bk Bn Rd Og Yw Gn Bu Vt Gy Wt
0 1 2 3 4 5 6 7 8 9
Black Brown Red Orange Yellow Green Blue Violet Grey White

Right End Band is for tolerance

Brown Band 1% — MFR Metal Film Resistor is used in Instrumentation Electronics.

Gold Band 5% — CFR Carbon Film Resistor is common for Consumer Electronics.

Silver Stripe is 10% .

better use this tool for this and more Electronics Assistant

Ohms Law

April 8, 2008 in Solderman

Ohms Law

W / I root(W * R) V / R root(W / R)
I * R Volts V Amps I W / V
V / I Ohms R Watts W V * I
W / (I * I) (V * V) / W (V * V) / R I * I * R

this is the best i could do, a better one here

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