Product Overview

Sinyinda SYCBCHM01P3R1 is a 3-Pin high-current plug male connector designed for 20A-class smart lithium battery power transmission scenarios. Based on the 2-Pin pure power design, this product adds one 3A signal channel, supporting NTC temperature monitoring, battery ID recognition, or BMS communication functions, achieving "power + safety/intelligence" single-port integration and completely resolving the reliability risks caused by traditional separate wiring of "power port + signal wires." It adopts a copper nickel-plated (50-80μ") high-wear-resistant contact process, with a plug/unplug lifespan of ≥1000 cycles and stable contact resistance of ≤3mΩ; the PA66 insulating substrate combines mechanical strength with temperature resistance, with a rated current of 20A (main circuit)/5A (signal), rated voltage of DC 250V, and an operating temperature range of -40°C to +105°C. The integrated snap-lock mechanism provides a holding force of ≥30N, and the asymmetrical housing design physically prevents reverse insertion, with a recommended plug/unplug lifespan of 1000 cycles. It is particularly suited for smart lithium battery applications with rigid requirements for "20A power + 1 safety signal synchronization," such as high-end power tool battery packs, energy storage BMS sampling interfaces, AGV battery management ports, and medical device backup power supplies, pairing precisely with the female connector SYCBCHM01P3R1F to form a complete 20A-class smart lithium battery power interconnection solution.

Core Advantages Exclusive to Smart Lithium Battery Power Terminals (3-Pin Version)

• 3rd Pin Multi-Functional Signal Channel:The 1-channel 3A signal terminal can be flexibly defined as NTC temperature monitoring, battery ID recognition, BMS CAN/UART communication, or enable control, achieving "power + safety/intelligence" single-port integration; the signal terminal is physically isolated from the power terminal with a 2.5mm spacing, preventing 20A switching noise from interfering with weak analog signals, with EMI suppression of >40dB@10MHz.
• Copper-Nickel Plated (50-80μ") High-Wear-Resistant Contacts:The nickel plating thickness reaches 50-80μ" (1.27-2.03μm), with a hardness of HV400-500, a wear amount of <0.1μm per mating cycle, and a 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 power tools, two-wheelers, and other humid and dusty environments, at a cost of only 1/5 of gold-plating solutions.
• PA66 Substrate Mechanical Strength Assurance:Tensile strength ≥80MPa, flexural strength ≥120MPa, 30% higher than PA6, capable of withstanding drop impacts from power tools (no cracking after 1.5m free fall); CTI value ≥250V, meeting UL94 V0 flame retardant rating, heat deflection temperature ≥240℃ (1.8MPa), and short-term resistance to 150℃ peak temperature without softening.
• Dual-Spec Terminal Hydraulic Crimping Process:The main circuit terminals adopt a T2 purple copper forged structure, crimped with a 14AWG dedicated crimping tool (model SYC-H20), with a pull-out force ≥150N; the signal terminals are crimped with a 22AWG crimping tool (model SYC-H03), with a pull-out force ≥50N; the dual-specification crimping ensures that both the power and signal circuits achieve optimal contact resistance (power ≤3mΩ, signal ≤10mΩ).
• Asymmetric housing for physical reverse-connection prevention:The housing adopts a trapezoidal profile plus guide rib groove dual anti-misinsertion design, with unique positioning for the positive/negative poles and signal pins, completely eliminating the risk of battery short circuits or signal terminal burnout caused by reverse insertion; the guide rib groove depth is 2mm, ensuring all contacts are fully aligned before mating, avoiding arc damage from hot-plugging.
• Wide temperature range -40℃~+105℃:The low-temperature toughness of the PA66 base material is modified and optimized, with no cracking on impact at -40℃; at high temperature 105℃, the dimensional change rate is <0.3%, meeting the temperature differential requirements of outdoor energy storage and northern winter power tools; the sealing O-ring (optional) has a compression set rate of <20%, maintaining IP54 protection rating during long-term use.

Application Guide for Smart Lithium Batteries in Vertical Scenarios