Approval sheet
SOLDERING CONDITION
The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260C 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 235C during 3 seconds. The test condition for no
leaching is 260C 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
CATALOGUE NUMBERS
The resistors have a catalogue number starting with .
L
WW08
U
R001
F
T
Size code
WW08 : 0805
Type code
Resistance code
Tolerance
Packaging code
Termination code
U : 0805 - 1W
S: 0805 – 0.5W
R is first digit followed by 3 J : 5%
T : 7” reeled in tape
L
= Sn base
significant digits.
(lead free)
F : 1%
0.001 = R001
Metal strip Low
EMF
WW08S/WW08U: 5,000 pcs per Emboss Tape & Reel.
Page 5 of 7
ASC_WW08S/WW08U_V01
SEP 2022