Approval sheet

Page 4 of 7

ASC_WF10A_V02

MAY - 2016

MARKING

1202 = 12Kohm

FUNCTIONAL DESCRIPTION

Product characterization

Standard values of nominal resistance are taken

from the E96 & E24 series for resistors with a

tolerance of

1%, 5%. 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.2

SOLDERING CONDITION

The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260

C for 10

seconds. Therefore, it is possible to mount Surface Mount Resistors on one side of a PCB and other discrete

components on the reverse (mixed PCBs).

Surface Mount Resistors are tested for solderability at 235

C during 2 seconds. The test condition for no

leaching is 260

C for 30 seconds. Typical examples of soldering processes that provide reliable joints without

any damage are given in Fig 3.

Fig 3. Infrared soldering profile for Chip Resistors

Fig 2. Maximum dissipation in percentage of rated

power

As a function of the ambient temperature