Common Precautions for XF Connectors
17
Common Precautions for XF Connectors
For All Models
For Operating
• Make sure that the FPC has been inserted correctly.
If the FPC is inserted incorrectly from the customer's design
specification, the pin number will not match and it may damage the
contacts or cause malfunction of the equipment.
• Insert the FPC fully to the back of the connector.
Not doing so may cause a loss of contact reliability.
• Do not lock or unlock the slider with excessive force.
The connector may be damaged, and cause contact failure.
• Do not use the connector of which the slider has once come off.
• When inserting and drawing out the FPC, make sure that the slider
has been unlocked first.
Using the FPC in the following ways may damage the FPC, change
the shape of the contacts, or result in contact failure.
(1) Drawing out the FPC when the slider is still locked.
(2) Drawing out the FPC by pulling it up and down or from left to
right or twisting it sideways.
For Designing
• When mounting the connector to the FPC, design the FPC so
that extreme peel force should not be applied directly on to the
connector.
If the FPC bends near the connector, or if the FPC is used with
extreme peel force directly on to the connector, it may cause a
contact loss.
• If the connector-mounted FPC is installed at a location or in
any equipment that will subject the FPC to continuous shake or
movement, secure the FPC or take any countermeasure against FPC
disconnection from the connector.
• Use FPCs that conform to the appropriate specifications and size as
stated by OMRON.
When using a different FPC, or an FFC, contact OMRON.
• Use the same metal for the FPC plating and the connector plating.
• “Whiskers” may protrude from the FPC film of some lead-free
FPCs. Be careful when using these units.
• Ensure a metal mask thickness of t = 0.12 to 0.15 mm.
The recommended metal mask open area is 90% of the printed
circuit board mating dimensions given in the dimensions diagrams.
For Mounting
• Do not mount (reflow or manual soldering) the connector to PCB
with FPC inserted in the connector. Doing so may result in contact
failure.
• The reflow conditions are as stated in OMRON’s specifications and
guidelines.
These conditions, however, depend on the type of solder, the
manufacturer, the amount of solder, the size of the circuit board, and
the other mounting materials.
• When mounting the connector by manual soldering, observe the
following precautions to ensure contact reliability.
(1) Conditions for manual soldering: 350±10°C 3±1 sec
(2) Do not apply an excessive amount of solder. Excessive solder
will cause the flux to rise.
(3) Do not apply the soldering iron to the mount attachments using
force. Doing so may cause the connectors to change shape.
n Safety Precautions
Precautions for Correct Use (4) Do not apply the soldering iron to any parts of the connector
other than the mount attachments. Doing so may cause the
connector to change shape.
For Board Mounting
• Be careful of board warping. The connector flatness is 0.1 mm max.
A large amount of warping, however, may result in soldering faults.
• Do not apply excessive force on the connector before mounting it.
The connector may be damaged, resulting in faulty contacts. Do not
insert the FPC and lock the slider before mounting the connector.
• Be careful not to apply an excessive load on the board when
performing the following actions. The connector may be damaged,
resulting in faulty contacts.
(1) Dividing multi-cavity boards.
(2) Securing a board with screws.
Storage
(1) Do not store the connectors in locations subject to dust or high
humidity.
(2) Do not store the connectors in locations close to sources of
gasses such ammonia gas or sulfide gas.
For Slidelocking Models
For Operating
• When locking the slider, apply pressure to both sides or the entire
slider, then push the slider all the way in.
Not doing so may result in contact failure.
For Designing
• When designing the board, be sure to allow unlocking and operating
space for the slider.
• XF2M & XF2W series are available to use FPC/FFC cable.
Please check any condition of each cable in spec sheet, or contact
with our Sales side.