Approval sheet

Page 4 of 7

ASC_WT04X_V14

Apr.2010

MARKING

3-digits marking

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

10

Ω

12

Ω

100

Ω

6800

Ω

47000

Ω

3-digits marking

100

120

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”

Derating

The power that the resistor can dissipate depends on the operating temperature; see Fig.2

Figure 2. Maximum dissipation in percentage of rated power

As a function of the ambient temperature

Circuit Mode

R1=R2=R3=R4=R6=R7=R8=R9