The XH Connector series from JST is designed for high reliability and versatility, inspired by the success of the NH series connectors. With a 2.5 mm pitch, these disconnectable crimp-style connectors are small in profile with a mounting height of just 9.8mm, making them suitable for compact electronic applications. The connectors accommodate a current rating of up to 3 A AC/DC with an applicable wire range of AWG #30 to #22 and suitable for a PC board thickness of 1.6 mm.
Technical Specifications
The connectors have a voltage rating of 250 V AC/DC and operate within a temperature range of -25°C to +85°C. Environmental endurance is reflected in the connector’s contact resistance, which maintains at 10 mΩ maximum initially and 20 mΩ max after environmental tests. Insulation resistance is impressive at over 1000 MΩ minimum. Additionally, these connectors are capable of withstanding 1000 VAC/minute, ensuring durability and safety. All components are RoHS compliant, and the series is recognized under various standards including E60389, LR20812, and J50014297.
Design and Assembly Details
The datasheet provides detailed PC board layout and assembly layout information for both through-hole and SMT type connectors, presenting minimum spacing requirements for circuits. It emphasizes non-cumulative tolerances for all centers at ±0.05 mm. Users are encouraged to contact JST for specific hole dimensions based on the type of PC board and the piercing method employed.
Components and Materials
Contacts are available in different models to accommodate various wire sizes and insulation diameters and are made from phosphor bronze with a tin-plating (reflow treatment). Additionally, for some applications, low-insertion force type contacts are noted for their ease of insertion and withdrawal. Housings are listed by circuits and dimensions and are constructed from PA 6, UL94V-0 natural (white), with options for different color identifications and a plugged-up variant not approved by UL/CSA/TUV. The summary also mentions the housing’s material as PA 6 (UL94V-0) in a natural white color, with an emphasis on RoHS compliance.
Tools for Crimping
The datasheet provides specific information regarding suitable crimping apparatuses, machines, dies, and the respective part numbers, ensuring that users can crimp the connectors accurately and efficiently for secure connections.
Overall, the XH Connector is engineered to meet the stringent demands of modern electrical applications where size constraints and connection reliability are paramount. It clearly delineates the specifications, standards, and compliance, making it suitable for a variety of electronic interconnect purposes. End users are prompted to review the ‘General Instruction and Notice when using Terminals and Connectors’ section at the end of the catalog and to reach out to JST for detailed specifications and inquiries.
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