Approval sheet
Page 5 of 9 ASC_WA04/06_V16 Apr-2014
MARKING
3-digits marking for E24 series 1% ,5% products
Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance
value. For values up to 9.1 the R is used as a decimal point. For values of 10.0 or greater the first 2 digits
apply to the resistance value and third indicate the number of zeros to follow.
Example
RESISTANCE
4.7Ω 10Ω 100Ω 6800Ω 47000Ω
3-digits marking
4R7 100 101 682 473
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of ±5%,
The values of the E24 series are in accordance with “IEC publication 60063”
Standard values of nominal resistance are taken from the E24/E96 series for resistors with a tolerance of
±1%, The values of the E24/E96 series are in accordance with “IEC publication 60063”
Derating
The power that the resistor can dissipate depends on the operating temperature; see Fig.3.
Figure 3
Maximum dissipation in percentage of rated power as a
function of the ambient temperature
CONSTRUCTION
R1=R2=R3=R4
