The official website - Shenzhen Mingjiada Electronic Co., LTD
In the core systems of smart grids, industrial Internet of Things and new energy management, power line communication (PLC) technology, with its revolutionary design of "power lines as data lines", has become the cornerstone of low-cost and wide-coverage communication. Renesas' PLC modem ics and PLC line drivers, with their high noise immunity and industrial-grade reliability, have been deeply integrated into global energy infrastructure. However, the accelerated technological iteration and production line adjustments are turning a large number of brand-new and unused Renesas PLC chips into "silent assets" for enterprises, not only freezing cash flow but also facing the risk of rapid depreciation. Shenzhen Mingjiada Electronics Co., LTD., relying on its fifteen years of technological accumulation in electronic recycling and global distribution network, has specially launched a high-price recycling service for the entire Renesas PLC product line. With scientific assessment, transparent quotations and rapid payment recovery, it helps enterprises efficiently activate inventory and drive a green circular economy.
I. PLC Chip: The "Core Engine" of Power Line Communication System
1. PLC modem IC: The intelligent hub for signal modulation
As the core of the PLC system, Renesas modem IC integrates an analog front end (AFE), a digital signal processor (DSP), and an embedded microcontroller, achieving three breakthrough functions:
High noise resistance communication: In the industrial power environment with strong interference, through adaptive equalization technology and forward error correction (FEC) algorithm, the bit error rate is guaranteed to be less than 10⁻⁶, far exceeding the requirements of the IEEE 1901.1 standard.
Multi-protocol compatibility: Supports global mainstream PLC protocols such as G3-PLC and PRIME, and is compatible with the 120kHz frequency bands in Europe and America and 150kHz in Asia, significantly reducing the cost of cross-border deployment.
System-level integration: A single chip replaces the traditional discrete solution of "MCU+ modulation module", reducing the PCB area of smart meters by 40% and lowering the BOM cost by 34%.
2. PLC Line Driver: "Energy Amplifier" for Power Signals
Renesas line drivers are specifically optimized for long-distance power line transmission. Their core features include:
High-voltage drive capability: Output swing reaches ± 12V, drive impedance as low as 1 Ω, ensuring lossless signal transmission over kilometer-level power lines.
Industrial-grade protection: Integrated over-temperature protection, short-circuit protection and ESD protection (> 8kV), meeting the automotive-grade temperature range of -40℃ to 125℃, suitable for harsh scenarios such as photovoltaic inverters and charging piles;
Energy efficiency innovation: Models using GaN technology (such as R9A06G037) achieve an efficiency of 92%, reducing heat loss by 50% compared to silicon-based solutions.
Ii. Mingjiada Recycling Solution: A Closed-loop System of Technical Verification and Global Premium
In response to the high value and circulation pain points of PLC chips, Mingjiada has built a three-dimensional engine of "military-grade testing +ESG compliance + scarcity premium"
Triple quality inspection ensures authenticity and performance
By using X-ray scanning (to inspect the internal structure), dynamic temperature box testing (cycling from -40℃ to 125℃ to verify electrical parameters), and original factory code verification, 100% refurbished or counterfeit chips are eliminated.
2. Premium mechanism driven by supply and demand data
Based on a real-time transaction database covering North America and Asia, Mingjiada offers a maximum premium of 40% for two types of chips:
Discontinued scarce models: Such as the early G3-PLC modem R9A06G037, due to the essential demand in the maintenance market, the premium space reaches 35%.
Automotive-grade/industrial-grade products: Drivers certified by AEC-Q100 or IEC 61000 (such as RAA78815), with a premium rate 25% higher than that of standard models.
Iii. Four-step Rapid Monetization: From Inventory Overstock to Capital Recovery
Mingjiada's standardized process achieves a global 5-working-day closed loop:
List submission → Customer organizes model (such as R9A06G037), quantity, batch information, email to chen13410018555@163.com;
Video verification → Video connection within 24 hours to confirm the original factory anti-static packaging and batch labels, avoiding the bottleneck of cross-border inspection.
Safe delivery → Supports global door-to-door pick-up (covering Japan/America/Europe/Southeast Asia) or DHL/UPS insured cash on delivery. Professional anti-static packaging ensures zero damage during transportation.
Payment upon inspection → Full payment is completed within 48 hours of arrival. Multi-currency settlement is supported in US dollars, euros and RMB. The speed of capital recovery is three times faster than the industry average.
Unleash the value of your PLC assets immediately
▸ Recovery Assessment: Manager Chen +86 13410018555
▸ list submission: sales@hkmjd.com (24-hour quote)
▸ official website price: www.mjdic.com
Note: Mingjiada only recyfies brand-new original Renesas PLC components from official channels such as agents and terminal factories.
