HANRUN(Zhongshan HanRun Elec) HR911105A

Product FAQ

• 1. What Are the Pricing Tiers and Availability of the HR911105A at LCSC?
  On LCSC (LCSC# C12074), the HR911105A is priced as follows: 1+ pcs: $1.5212 each 10+ pcs: $1.3212 each 31+ pcs: $1.1422 each 93+ pcs: $1.0002 each 496+ pcs: $0.9437 each 992+ pcs: $0.9147 each Over 34,000 units are in stock and available for immediate shipment. The standard packaging is 31 pieces per tube. HANRUN (Zhongshan HanRun Electronics) is a Chinese connector manufacturer with a wide catalog of Ethernet and modular connectors.
• 2. What Are the Recommended Soldering and Assembly Practices for the HR911105A?
  As a through-hole component, the HR911105A is compatible with both wave soldering and manual soldering. Standard packaging is 31 pieces per tube, with a minimum order of 1 piece. Wave soldering temperatures and conveyor speed must be adjusted to ensure full hole fill without solder bridging across the dense pin field typical of RJ45 connectors. The RoHS-compliant construction means lead-free solder alloys (e.g., SAC305) are appropriate. The connector's plastic housing has a defined maximum soldering temperature that should be confirmed in the HANRUN datasheet to avoid deformation.
• 3. What PCB Footprint and Drilling Requirements Does the HR911105A Through-Hole RJ45 Require?
  The HR911105A uses Through Hole (THT) mounting, requiring drilled PCB holes for all signal, shield, and LED pins. Through-hole RJ45 connectors offer greater mechanical robustness at the board edge compared to SMT variants, making them preferred in applications subject to cable plug/unplug cycling. Designers should obtain the HANRUN HR911105A mechanical drawing from the LCSC C12074 datasheet to confirm pin pitch, hole diameter, and recommended land pattern dimensions before finalizing PCB layout.
• 4. Does the HR911105A Include Integrated Magnetics, and What Does That Mean for Design?
  Yes — the HR911105A is listed under the Modular/Ethernet Connector Jacks With Magnetics category on LCSC, meaning the Ethernet isolation transformer and common-mode choke are integrated into the connector housing. This eliminates the need for external discrete magnetic components, reducing BOM count and board space. The integrated magnetics provide the 1500V AC isolation required by IEEE 802.3 Ethernet standards. Designers should verify in the HR911105A datasheet (available at LCSC# C12074) the exact transformer turns ratio and insertion loss specifications to confirm suitability for the target Ethernet speed (10/100BASE-T or Gigabit).
• 5. What Are the Key Specifications of the HR911105A RJ45 Connector?
  The HR911105A is a Jack Modular Connector in the RJ45 form factor from HANRUN (Zhongshan HanRun Electronics). It is a Through Hole (THT) mount connector categorized under Modular/Ethernet Connector Jacks With Magnetics (LCSC# C12074). It is RoHS compliant with CNHTS 8536901100 and USHTS 8536908585. The standard packaging is 31 pieces per tube, and the minimum order is 1 piece. It is designed for board-mount Ethernet port applications where integrated magnetics are required.