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