Product Overview

Sinyinda SYCBCHM01P4R1 is a 4-Pin high-current plug male connector (current-sharing version) specifically designed for 80A-class pure power lithium battery transmission scenarios. This product adopts 4 identical 20A power terminals with no signal pin mixing design, supporting 4-way parallel current sharing to achieve 80A continuous current-carrying capacity. Even if a single pin fails, it can still operate at derated capacity to ensure system redundancy safety. It features copper-nickel plated (50-80μ") high-wear-resistant contact technology, with a mating cycle life of ≥1000 times and stable contact resistance of ≤3mΩ; the PA66 insulating substrate combines mechanical strength and temperature resistance, with a rated voltage of DC 250V and an operating temperature range of -40°C to +105°C. The integrated snap-lock mechanism provides ≥40N retention force (30% higher than 2-Pin/3-Pin versions), and the asymmetric housing design provides physical anti-reverse connection protection, with a recommended mating cycle life of 1000 times. It is particularly suitable for high-power lithium battery application scenarios with rigid requirements for "high current density + dynamic current sharing + redundancy safety," such as 48V/60V lithium battery PACK parallel ports, energy storage PCS DC-side interconnection, battery swap station battery rack interfaces, and AGV fast-charging bases. It pairs precisely with the female socket SYCBCHM01P4R1F to form a complete 80A-class pure power lithium battery interconnection solution.

Core Advantages Exclusive to 80A Pure Power Terminals (4×20A Current-Sharing Version)

• Dynamic Current Sharing with 4×20A Homogeneous Terminals:The 4 terminals are completely identical in size, material, plating, and crimping specifications, with an initial contact resistance dispersion of <5%, ensuring that the current distribution deviation among pins is <±3% under 80A load; this avoids single-pin overload heating caused by impedance differences in traditional "main pin + auxiliary pin" mixed layouts. Measured results show that under 80A full load, the temperature rise difference among the 4 pins is <2K, with thermal balance performance far exceeding industry averages.
• Copper-Nickel Plated (50-80μ") High-Wear-Resistant Contacts:Nickel plating thickness reaches 50-80μ" (1.27-2.03μm), with hardness of HV400-500, mating wear of <0.1μm per cycle, and contact resistance change rate of <10% after 1000 mating cycles; the nickel layer offers excellent chemical stability, with salt spray corrosion resistance of >96h (5% NaCl), making it suitable for outdoor battery swap station environments and high-humidity energy storage container conditions, at only 1/5 the cost of gold plating solutions.
• High-Strength PA66 Substrate for Load Bearing:Tensile strength ≥80MPa, flexural strength ≥120MPa, capable of withstanding impact from battery swap robot gripping (no cracking during 2m/s docking); CTI value ≥250V, meeting UL94 V0 flame retardant rating, heat deflection temperature ≥240℃ (1.8MPa), and short-term tolerance of 150℃ peak temperature without softening, ensuring the housing does not deform under 80A transient surges.
• 14AWG Hydraulic Crimping Consistency Assurance:All 4 terminals use T2 oxygen-free copper forged construction, paired with the SYC-H20 dedicated crimping tool for 14AWG wire, with a crimping area of ≥2.5mm² and pull-out force of ≥150N per pin; for mass production, pneumatic crimping machines with closed-loop pressure sensor control are recommended to ensure crimping force dispersion of <±5% across the 4 pins, guaranteeing current-sharing reliability from the process source.
• Enhanced Snap-Lock Mechanism:Given the increased insertion and withdrawal force of the 80A high-current connector, the latch spring has been widened and thickened, with a locking retention force ≥40N (30% higher than 2Pin/3Pin versions), while the unlocking force ≤15N still supports one-handed operation. The latch incorporates a redundant design with dual metal springs; if one spring breaks, a retention force of ≥25N is maintained, preventing accidental disconnection in high-altitude or vibration scenarios.
• -40℃~+105℃ wide-temperature current-sharing stability:The PA66 base material has been modified for improved low-temperature toughness, with no cracking at -40℃ impact. At high temperatures up to 105℃, the synchronous rise rate of contact resistance across the 4 pins is <8%, avoiding current-sharing imbalance due to temperature drift differences. The sealing O-ring (optional) has a compression set rate of <20%, maintaining IP54 protection over long-term use.

Vertical scenario 80A pure power application guide