1997 Jul 30 1
Philips Components
Surface mounted ceramic
multilayer capacitors General data
PACKAGING
Tape on reel
Packaging conforms fully with
“IEC 286-3”
,
“EIA 481-1”
and
“JIS C0806”
industrial standards.
Ceramic Multilayer Capacitors are supplied on tape on reel
or in bulk case. For CMCs with a product thickness of
<1 mm, paper tape is preferred. CMCs with a product
thickness of ≥1 mm, are supplied in embossed blister tape.
CARRIER TAPE
Polycarbonate.
Table 1 Properties of carrier tape
COVER TAPE
Polyester (antistatic).
Table 2 Properties of cover tape
PARAMETER WIDTH
8.1 ±0.2 mm 12 ±0.2 mm
Thickness 190 to 280 µm 240 ±20 µm
Tensile strength at break >60 N/mm2>60 N/mm2
Elongation at break 100 to 150% 100 to 150%
Surface resistance >1012 Ω/sq. >1012 Ω/sq.
PARAMETER WIDTH
5.5 ±0.1 mm 9.5 ±0.1 mm
Breaking force ≥10.7 N ≥17.6 N
Elongation at break ≥63% ≥63%
Surface resistance <1010 Ω/sq. <1010 Ω/sq.
Softening point 71 ±5°C71±5°C
Thickness 62 µm62µm
General information
For the combination carrier/cover tape no electrostatic
behaviour is observed (relative humidity ≥30%). The
products do not stick to the cover tape.
The technical and thermal properties of polycarbonate
tapes are excellent, so there is no change in dimensions
as a function of time. The peel off force is very stable as a
function of time and temperature, and it is defined as
0.1 to 0.7 N at a peel-off speed of 120 mm/minute.
Bulk packaging
For bulk case; see Fig.5 and Table 7.
Environmental considerations
•Cover tape, carrier tape and reel do not contain the
environmentally-harmful PVC materials.
•Because the carrier tape is made of a homogeneous
material (so called mono-plastic), it is ideally suited for
recycling.
•Compared to other PVC-free materials polycarbonate
shows very little deformation as a function of
temperature and has excellent stiffness.