Product Overview

Sinyinda SYCZF01P5CSMT (PA9T version) is a 5Pin lithium battery connector female header (SMT type) specifically designed for 10A-class power and signal hybrid transmission + SMT fully automatic placement. This product uses a PA9T high-performance substrate with a heat deflection temperature of ≥310°C (1.8MPa), capable of withstanding a 260°C lead-free reflow soldering peak temperature (10s) without deformation or blistering; CTI value ≥400V (33% higher than PA6T's 300V), meeting the stringent insulation requirements of IEC 60664-1 overvoltage category III and pollution degree 3. The 5.0mm standard pitch ensures a creepage distance of ≥4.5mm, with a rated current of 10A per pin and 50A total, supporting integrated BMS communication lines and power lines in the same port. The SMT placement structure combined with dual positioning posts provides a PCB retention force of ≥80N, with vibration and shock resistance meeting automotive-grade LV214 standards. The asymmetric housing + guide groove dual anti-misinsertion design completely eliminates reverse insertion risks; tin-plated contacts (3-5μm) balance solderability and wear resistance, with a mating cycle life of ≥500 times. It is particularly suited for applications with rigid requirements for "260°C process + high CTI insulation + 10A hybrid transmission + SMT automatic assembly," such as automotive BMS sampling ports, energy storage high-voltage box interfaces, industrial AGV charging contacts, and medical portable device power modules, pairing precisely with the male header SYCZM01P5R1H590 to form a complete 10A-class 5.0mm pitch high-reliability lithium battery interconnect solution.

Core Advantages of the PA9T Version 10A-Class 5.0mm Pitch SMT Exclusive

• PA9T substrate withstands 260°C peak + low water absorption rate:Heat deflection temperature ≥310°C (1.8MPa), melting point 305°C, capable of withstanding 260°C lead-free reflow soldering peak temperature (10s) without softening, blistering, or discoloration; saturated water absorption rate is only 0.25% (PA6T is 0.8%), with moisture sensitivity level MSL 2, allowing direct placement without baking, avoiding soldering burst or dimensional expansion caused by moisture absorption that could affect placement accuracy.
• CTI ≥400V high comparative tracking index:33% higher than PA6T (CTI ≥300V), meeting the insulation requirements of IEC 60664-1 overvoltage category III and pollution degree 3; in harsh environments such as humidity, dust, and salt spray, the formation time of surface leakage paths is extended by more than 3 times, significantly reducing the risk of short-circuit fires in high-voltage lithium battery systems, making it especially suitable for applications such as energy storage power stations and outdoor charging piles.
• 5.0mm safety pitch + hybrid transmission architecture:Terminal center distance of 5.0mm, effective creepage distance ≥4.5mm, air gap ≥3.5mm; continuous current carrying capacity of 10A per pin (temperature rise ≤30K@25°C), up to 50A with 5 pins in parallel; supports flexible configurations of "2Pin power + 3Pin signal" or "3Pin power + 2Pin signal," enabling integrated BMS communication and medium-power supply in the same port, reducing the number of PCB openings and routing complexity.
• SMT placement + dual positioning posts with automotive-grade retention force:Pad width of 2.5mm, with PCB pad tolerance of ±0.05mm, providing axial retention force ≥80N and radial retention force ≥50N after soldering; dual positioning posts (diameter 2.0mm) ensure installation accuracy of ±0.1mm, with vibration and shock resistance meeting LV214 Grade 3 (10-2000Hz, 10g), satisfying a 15-year service life requirement under high-vibration conditions such as automotive BMS and industrial AGV applications.
• Asymmetric housing + guide groove dual keying:The housing adopts a trapezoidal profile + asymmetric guide rib and groove design, with a unique 5-pin position correspondence that completely eliminates reverse insertion risk; the guide groove depth is 2.0mm, ensuring all contacts are fully aligned before mating, preventing arc damage during hot plugging, and supporting blind mating operations; the PA9T substrate has a low friction coefficient, with insertion and withdrawal force fluctuation of <±5N, providing better tactile consistency than PA6T.
• Tin-plated contacts + nickel barrier layer for long-term solderability:The contact tin plating layer is 3-5μm thick, with an underlying nickel barrier layer of 2-3μm, preventing copper diffusion that could degrade solderability; after 1000 hours of storage at 85°C/85%RH high temperature and high humidity, the wetting time remains <2s, and solder joint strength retention is ≥90%; insertion and withdrawal wear is <0.05μm per cycle, and after 500 insertion cycles, the contact resistance change rate is <15%.

Application Guide for Vertical Scenario PA9T Version 10A-Class SMT Hybrid Transmission