Notes on Using FPC Connectors
–1–
ACCTB13E 201701-T
Notes on Using FPC Connectors
■ About safety Remarks
• Do not use these connectors beyond the specification sheets.
The usage outside of specified rated current, dielectric strength,
and environmental conditions and so on may cause circuitry
damage via abnormal heating, smoke, and fire.
• In order to avoid accidents, your thorough specification review
is appreciated.
Please contact us if your usage is out of the specifications.
Otherwise, Panasonic Corporation cannot guarantee the quality
and reliability.
• Panasonic Corporation is consistently striving to improve
quality and reliability.
However, the fact remains that electrical components and
devices generally cause failures at a given statistical probability.
Furthermore, their durability varies with use environments or use
conditions. In this respect, please check for actual electrical
components and devices under actual conditions before use.
Continued usage in a state of degraded condition may cause the
deteriorated insulation, thus result in abnormal heat, smoke or
firing. Please carry out safety design and periodic maintenance
including redundancy design, design for fire spread prevention,
and design for malfunction prevention so that no accidents
resulting in injury or death, fire accidents, or social damage will
be caused as a result of failure of the products or ending life of
the products.
■ PC board design
• Design the recommended foot pattern in order to secure the
mechanical strength in the soldered areas of the terminal.
• In order to facilitate the connector mount, make sure to design
the board with reduced warpage.
• Please design and pay attention to the distance from the board
edge to the pattern. When cutting the board, do not give an
excessive stress to the connector, which risks damaging the
connector.
(Y3BW/Y5BW)
• Depending on FPC dimension and FPC insertion location,
there is a possibility that the holding contact and an FPC pattern
of both end of signal contacts are in short-circuited.
Please design the equipment not to be affected even if a board
pattern of holding contacts and an FPC pattern of both end of
signal contacts are in short-circuited.
(For example: Do not connect a board pattern of holding
contacts and GND. If connect a board pattern of holding
contacts and GND, also connect board pattern of both end of
signal contacts.)
■ FPC and equipment design
• Design the FPC based with recommended dimensions to
ensure the required connector performance.
• When back lock type is used, secure enough space for closing
the lever and for open-close operation of the lever.
• Make sure that connector positioning and FPC length are
appropriate to prevent diagonal insertion of the FPC.
• Due to the FPC size, weight, or the reaction force of the routed
FPC, FPC removed and connector deformation may occur by a
fall, vibration, or other impact.
When using FPC connector for smart phones, cellular phones
and other applications which require falling resistance, please
pay attention to precautions.
• Carefully check the equipment design and take required
measures to prevent the FPC removed.
• If the shock of falling, vibration is applied to the FPC, please
design the equipment not to be applied a load to connector, such
as fixing the FPC.
• Make sure to design the FPC insertion part with reduced
warpage. Otherwise, the warpage may adversely affect the FPC
insertion.
■ Connector mounting
• Excessive mounter chucking force may deform the molded or
metal part of the connector. Consult us in advance if chucking is
to be applied.
• In case of dry condition, please note the occurrence of static
electricity.
The product may be adhered to the embossed carrier tape or
the cover tape in dry condition.
Recommended humidity is from 40%RH to 60%RH and please
remove static electricity by ionizer in manufacturing process.
(Y4BH)
When using in high-speed transmission applications,
please take care when designing the FPC/FFC, because the
differential impedance values may be uneven depending on
FPC/FFC dimensions settings, uneven dimensions, and
layering composition.
(Y3BW/Y5BW)
■ The holding contacts cannot be used as conductors.
The holding contacts are located on both ends of the
connector, and the shape of the soldered portions is the
same as that of the signal contacts.
Use caution to ensure connect identification.
(Y3BL)
■ Soldering terminal structure
• Since soldering terminals touch FPC, note that the short
circuit may occur when the metal parts exposed on side of
FPC.
• Depending on FPC dimension, there is a possibility that
soldering terminals and an FPC pattern of both end of signal
contacts are in short-circuited.
Please design the equipment not to be affected even if a
board pattern of soldering terminals and an FPC pattern of
both end of signal contacts are in short-circuited.
(For example: Do not connect a board pattern of soldering
terminals and GND. If connect a board pattern of soldering
terminals and GND, also connect board pattern of both end of
signal contacts.)
