JST EH series connector is used first to end PCB (printed circuit board) due to the standardized structure and high cost-effectiveness. Take EH-2.5 of 2.5mm pitch, their terminals are phosphor bronze, tin-plated (thickness ≥1μm), contact resistance not exceeding 30mΩ, and at a maximum current of 3A (maximum temperature rise of 40K) possible, 15% higher than the current rating of the standard 2.54mm pitch connector (such as Molex KK series having a temperature rise of 50K). Within SONY PlayStation 5 main board, the JST EH power interface module increased the PCB density by 20% (tolerance on contact center distance ±0.05mm) and enhanced assembly yield from 97.5% to 99.8% through SMT-adaptable design (reflow maximum temperature 260 ° C). The global market for PCB connectors, as per Grand View Research, will be $6.2 billion in 2023, and EH series will capture a 19% market share through standardized packaging (adjustable height 3.5mm to 8.5mm), thus reducing the cycle of design verification by 40% (from 6 weeks to 3.5 weeks). From a cost perspective, JST EH is economical in the sense that it reduces BOM (Bill of Materials) complexity through the application of modular design.
Its dual-in-line packages (e.g., EH-D10 series) offer 10-24 pin position flexible configuration and reduce the SKUs in stock by 70% (e.g., Dell XPS notebook production line connector models reduced from 15 to 5). In BYD EV BMS (electric vehicle battery management system), the price per board is reduced by 1.2 (by 120.8/unit) after switching from customized solutions to EH series connectors. Reliability and compatibility are the largest benefits of jst eh.
Its 50 times insertion and withdrawal life (IEC 60512 standard 30 times), insertion and withdrawal force ±10% (rival products ±20%), can satisfy automated production lines (e.g., Foxconn chip machine speed 0.2 seconds/point) requirements. Industrial uses, after Siemens S7-1200 PLC module adopts EH series connector, the probability of signal breakdown during vibration testing (frequency 10Hz-500Hz, acceleration 5G) is reduced from 0.5% to 0.02%, MTBF (mean time to failure) is increased from 50,000 hours to 120,000 hours. The radiation-hard JST EH-R is used in the starship navigation system PCB of SpaceX in 2022. The contact resistance variation ≤5% under proton radiation intensity 100krad(Si), and the bit error rate still is 1E-12 (the connector standard rises to 1E-8). JST EH still advances with the development of technology.
EH-HSD series, launched in 2023, offers 10Gbps high-speed signals (loss ≤-1.2dB@5GHz) with ±5Ω (industry standard ±10Ω) impedance matching tolerance for Nvidia A100 Gpus’ PCIe Gen4 interface, reducing latency from 0.8ns to 0.3ns. EH-MED is ISO 13485 certified (leakage current <10μA) for medical devices, reducing EMC noise on Medtronic pacemaker PCBS by 20dB (30MHz-1 GHZ band). Founded on ABI Research estimates that global industrial PCB connector market will grow 11% every year between 2028, and JST EH will own 25% of 5G base station and AI server market with its IPC-610 Class 3 standard capability and wide -55 ° C to 125 ° C operating temperature. Make high density interconnect costs equal to $0.03/pin.