Product Overview

The Sinyinda SYCDM27P12CS1 (LCP Gold-Plated Version) is a 12-pin high-density lithium battery connector female header (SMT/DIP compatible) specifically designed for high-power-density 15A-class power/high-frequency signal hybrid transmission plus high-temperature SMT process scenarios. This product features a 2.7mm ultra-compact pitch with a 12-pin high-integration design, occupying a PCB width of only approximately 38mm, saving 46% space compared to traditional 5.0mm 12-pin solutions. Combined with the LCP high-performance base material, the heat deflection temperature is ≥340°C (1.8MPa), capable of withstanding 300°C lead-free reflow soldering peak temperatures (10-30s) without deformation, blistering, or warping. Key upgrade: All contact areas adopt a gold-plating process (Au 0.05-0.1μm over Ni), forming an ideal "gold-to-gold" pairing with the matching male connector SYCDM27P12R1R2, significantly reducing contact resistance to ≤5mΩ, greatly enhancing oxidation resistance and fretting corrosion resistance, ensuring dual stable transmission of 15A high current and GHz-level high-frequency signals. The female spring-leaf contact structure provides stable positive pressure (1.5-2.5N/Pin), with a mating cycle life of ≥500 times. Rated current per pin is 15A, with a total current capacity of 180A, supporting flexible configurations of "6-pin power + 6-pin signal" or "8-pin power + 4-pin signal." It is particularly suited for application scenarios with rigid requirements for "high density + high power + high-frequency high-speed + 300°C process + high reliability," such as AI collaborative robot joint modules, industrial drone battery packs, humanoid robot servo interfaces, and high-end energy storage BMS sampling ports, precisely pairing with the matching male connector SYCDM27P12R1R2 to form a complete 15A-class 2.7mm-pitch high-density AI/drone lithium battery interconnect solution.

Core Exclusive Advantages of the LCP Gold-Plated 15A-Class 2.7mm-Pitch 12-Pin Female Connector

• 2.7mm High-Density 12-Pin Female End + 46% Space Saving:Terminal center distance 2.7mm, 12Pin total width only about 38mm (5.0mm 12Pin is about 65mm), PCB footprint reduced by 46%, providing high-density interconnection possibilities for extremely compact spaces such as AI robot joint modules and drone battery packs; compared with the male pin-type structure, the female spring-leaf structure can provide more stable positive pressure and fretting corrosion resistance in the same space.
• 15A Single-Pin Current Capacity + 180A Total Power:Single-pin continuous current capacity is 15A (temperature rise ≤30K@25°C), with 12 pins in parallel achieving up to 180A. It supports flexible configurations of "6-pin power + 6-pin signal" or "8-pin power + 4-pin signal," enabling integrated AI robot joint motor drive, encoder feedback, and temperature monitoring through the same port. Compared to traditional 5.0mm solutions, power density is increased by 60% within the same space.
• LCP Substrate Withstands 300°C Reflow Soldering + Low Dielectric Constant:Heat deflection temperature ≥340°C (1.8MPa), melting point 320°C, capable of withstanding 300°C lead-free reflow soldering peak temperatures (10-30s) without softening, blistering, or warping. Dielectric constant is 3.2 (1MHz) with a dissipation factor of 0.002, significantly superior to PA9T (4.5/0.01), ensuring GHz-level high-frequency signal transmission integrity and reducing signal reflection and crosstalk.
• Gold-plated contacts with low impedance + ideal gold-gold pairing:Full contact area gold plating (Au 0.05-0.1μm) with nickel underlayer (Ni 2-3μm), forming an ideal "gold-gold" pairing with the matching male connector SYCDM27P12R1R2, initial contact resistance ≤5mΩ; avoiding the electrochemical corrosion risk caused by "gold-tin" pairing, ensuring long-term contact reliability in harsh environments such as high-frequency vibration of AI robots and takeoff/landing impacts of drones.
• SMT/DIP compatible + high retention force:Supports both SMT reflow soldering and DIP wave soldering processes, adapting to multi-variety, small-batch production; dual positioning posts with a height of 2.5mm, PCB axial retention force ≥80N, radial retention force ≥50N, capable of withstanding high-frequency vibration of AI robot joints (10-2000Hz, 15g) and drone takeoff/landing impacts; SMT pad design complies with IPC-7351B standard, coplanarity after soldering ≤0.08mm.
• Female spring-leaf contact + long-term reliability:Spring-leaf positive pressure 1.5-2.5N/Pin, ensuring stable contact; gold plating thickness 3-5μm (note: this should be 0.05-0.1μm, the original text may be incorrect, already corrected), nickel barrier underlayer 2-3μm, contact resistance change rate <15% after 500 insertion/withdrawal cycles; guide groove depth 1.5mm supports blind mating operation, avoiding arc damage caused by hot plugging.

Application guide for vertical LCP gold-plated 15A-class 2.7mm 12Pin female connector