OMRON XB4B

0.4-mm Pitch Board to FPC Connector
XB4A/XB4B
Ultra-low profile connector with a stacking
height of 0.9 mm and high contact reliability.
• Provides a firm tactile “click” and a high removal force.
• Twist-resistant design allows removal in all directions.
• Easy insertion through self-alignment.
• Double contacts ensure highly reliable contact.
• Halogen Free (See note)
Note: OMRON uses the following standard to determine halogenfree construction: 900 ppm max. for Br, 900 ppm max. for Cl,
and 1,500 ppm max. for Br+Cl.
• RoHS Compliant
Ordering Information
Type
Pin No.
Model
Quantity per reel (See Note)
Plug
24
XB4A-2435-D
3,000
40
XB4A-4035-D
50
XB4A-5035-D
60
XB4A-6035-D
80
XB4A-8035-D
24
XB4B-2435-D
40
XB4B-4035-D
50
XB4B-5035-D
60
XB4B-6035-D
80
XB4B-8035-D
Socket
3,000
Note: Please order a multiple of the quantity per reel.
Ratings and Specifications
■ Characteristics
Rated Current
0.3 A AC/DC
Rated Voltage
50 V AC/DC
Contact resistance
60 mΩ max. (at 20 mV DC max., 100 mA max.)
Insulation resisitance
100 MΩ min. (at 250 VDC)
Withstand voltage
250 VAC for 1 min. (leakage current: 1 mA max.)
Total insertion force
Pin number x 1.7N max.
Total removal force
Pin number x 0.1N min.
Insertion tolerance
50 times
Ambient operating temperature
-30 to 85°C (with no icing at low temperatures.)
■ Material and Finish
Housing
LCP resin (UL94-0)/black
Contacts
Spring copper alloy/nickel substrate (2 μm) Gold-plated contacts (0.15 μm)
0.4-mm Pitch Board to FPC Connector
XB4A/XB4B
37
Dimensions
■ XB4A Plug, SMT terminal
XB4A-@@35-D
PCB Mating Dimensions (TOP VIEW)
B
A
A±0.03
0.4
0.4±0.03
0.15
0.23±0.03
Pin number indication
2.3
3.4
4.1
3.2±0.03 4.7±0.03
Pin No.
A
B
24
XB4A-2435-D
Model
4.4
6.1
40
XB4A-4035-D
7.6
9.3
50
XB4A-5035-D
9.6 11.3
60
XB4A-6035-D
11.6 13.3
80
XB4A-8035-D
15.6 17.3
0.75
Stacking state
(Stacking connector is XB4B.)
Plug
contact
Plug (XB4A)
Socket (XB4B)
4.1
0.14
Effective stacking length
(straight portion)
0.9±0.15
Stacking height
5
Plug
housing
■ XB4B Socket, SMT terminal
XB4B-@@35-D
PCB Mating Dimensions (TOP VIEW)
B
A
A±0.03
0.4
0.4±0.03
0.15
1.3
4.4
0.23±0.03
5.0
4.0±0.03 5.6±0.03
Pin No.
Pin number indication
0.84
Stacking state
(Stacking connector is XB4A.)
Socket
Contact
Plug (XB4A)
Socket (XB4B)
4.1
0.14
Effective stacking length
(straight portion)
0.9±0.15
Stacking height
5
Socket
Housing
38
0.4-mm Pitch Board to FPC Connector
XB4A/XB4B
A
B
24
XB4B-2435-D
Model
4.4
7.2
40
XB4B-4035-D
7.6 10.4
50
XB4B-5035-D
9.6 12.4
60
XB4B-6035-D
11.6 14.4
80
XB4B-8035-D
15.6 18.4
Safety Precautions
Precautions for Correct Use
For Operating
1. Regarding the connector stacking operation, it should be confirmed there is no extreme displacement and tilt in the stacking
contact areas between a plug and a socket before the stacking
operation of the connectors.
2. Ensure that the connector stackings are fully seated.
• An incomplete stacking state may cause the failure of contact
reliability.
6. Do not insert a foreign object such as a tweezers into the connector stacking contact area.
• Doing so may cause the plating peel off and deform the shape
of the terminal.
3. Do not apply an extreme load when inserting or drawing out the
connector.
• The connector may be damaged, resulting in faulty contacts.
4. When stacking the plug and socket, press the back side of printed
circuit board mounted with them and then couple with as little
twisting force as possible.
• Doing so may cause the terminal and housing to change shape
or the housing to crack.
For Mounting
1. 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.
2. When mounting the connector by manual soldering, observe the
following precautions to ensure contact reliability.
• Conditions for manual soldering: 350±10°C 3±1 sec
• Do not apply an excessive amount of solder. Excessive solder
will cause the flux creap.
• Do not apply the soldering iron to the mounting terminal. Doing
so may cause the connectors to change shape.
• 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 Designing
5. When drawing out, hold the edge of the printed circuit board near
the connector and remove as vertically as possible, as described
in the figure below.
• Drawing out the plug with too much force may have possibility to
change shape of terminal solder/housing crack.
1. 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.
2. 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.
3. Do not use plural connectors on same PCB.
• Doing so may cause solder and housing crack.
4. When locating the connector on the printed circuit board, be sure
to allow space for the stacking operation.
5. Ensure a metal mask thickness of t = 0.10 to 0.15 mm.
The recommended open area of the metal mask is 90% of the
printed circuit board’s mating dimensions as shown in the dimensional diagrams.
Row direction
Pitch direction
0.4-mm Pitch Board to FPC Connector
XB4A/XB4B
39
Name of the Parts for Board to Board
Connectors
Circuit board
Housing Housing
Circuit board
<Plug>
Terminal
Terminal
<Socket>
Handling Methods
How to couple a connector
1. Position a plug with a socket.
2. Insert the connector until it becomes horizontal.
Horizon
How to draw out the connector
1. Hold the edge of the printed circuit board near the connector and
draw out as verifcally as possible.
40
0.4-mm Pitch Board to FPC Connector
XB4A/XB4B
MEMO
0.4-mm Pitch Board to FPC Connector
XB4A/XB4B
All sales are subject to Omron Electronic Components LLC standard terms and conditions of sale, which
can be found at http://www.components.omron.com/components/web/webfiles.nsf/sales_terms.html
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
OMRON ON-LINE
OMRON ELECTRONIC
COMPONENTS LLC
Global - http://www.omron.com
USA - http://www.components.omron.com
55 E. Commerce Drive, Suite B
Schaumburg, IL 60173
847-882-2288
Cat. No. X304-E-1a
04/11
Specifications subject to change without notice
0.4-mm Pitch Board to FPC Connector
XB4A/XB4B
Printed in USA