With the rapid development of sectors such as new energy vehicles, photovoltaic energy storage, data centre power supplies and industrial motor drives, market demand for power MOSFETs—as core power semiconductor devices—remains consistently strong. Shenzhen Mingjiada Electronics Co., Ltd. (hereinafter referred to as ‘Mingjiada Electronics’), a specialist service provider with nearly thirty years’ experience in the electronic component recycling sector, is now offering long-term, high-price cash recycling services worldwide for the full range of Oriental Semiconductor power MOSFET products, including the GreenMOS series, SFGMOS series, FSMOS series, SiC MOSFETs, TGBTs and SuperSi²C MOSFETs.
I. About Oriental Semiconductor
Suzhou Oriental Semiconductor Co., Ltd. (Stock Code: 688261), established in 2008, is a technology-driven semiconductor enterprise specialising in the research, development and sales of high-performance power devices. The company’s products are focused on medium- to high-power applications in industrial and automotive sectors. Through its outstanding innovation capabilities in semiconductor devices and processes, it has established a leading position in fields such as high-voltage super-junction MOSFETs and medium- to low-voltage shielded-gate MOSFETs.
Oriental Semiconductor’s products are widely used in industrial and automotive applications such as DC charging stations for new energy vehicles, on-board chargers (OBCs), photovoltaic inverters, energy storage systems, 5G base station power supplies, telecommunications power supplies, data centre server power supplies, industrial lighting power supplies, power tools, intelligent robots, drones and UPS power supplies, as well as in consumer electronics applications such as PC power supplies, adaptors, TV power boards, mobile phone fast chargers and electromagnetic heating.
II. Dongwei Power MOSFET Product Series Prioritised for Recycling by Mingjiada Electronics
Mingjiada Electronics has long been purchasing the following full range of Dongwei Semiconductor power MOSFET products at premium prices:
1. GreenMOS Series – High-Voltage Super-Junction MOSFETs
The GreenMOS series is Dongwei Semiconductor’s high-voltage super-junction MOSFET product line. Utilising a unique, patented device structure and manufacturing process, it offers faster switching speeds and smoother switching curves than conventional MOSFETs. Whilst achieving extremely low dynamic losses, this series minimises switching oscillations, significantly improving system efficiency, reducing heat generation and simplifying system EMI design.
Voltage range: Full series from 550V to 950V
Current range: 2A to 116A
Sub-series: Standard Generic Series, High-Performance General-Purpose Series, E Series (600V–700V, 5A–20A, balanced EMI performance)
Featured Models: The GreenMOS Z Series integrates a fast recovery diode (FRD) to minimise reverse recovery time
Main Applications: Photovoltaic inverters, charging points, telecommunications power supplies, server power supplies, industrial power supplies
2. SFGMOS Series – Medium- and Low-Voltage Shielded-Gate MOSFETs
The SFGMOS Series utilises Dongwei’s proprietary semi-floating gate structure, combining the advantages of both traditional planar and SGT power MOSFETs. It offers higher process stability and reliability, faster switching speeds, lower gate charge and higher application efficiency.
Voltage range: Full series from 20V to 200V
On-resistance: As low as 2.5mΩ
Main applications: Motor drives, synchronous rectification and other fields
3. FSMOS Series – Shielded-Gate MOSFET
The FSMOS series is based on Dongwei’s unique device design, enabling low on-resistance (RDS(ON)), low gate charge, fast switching and excellent avalanche characteristics. This series covers medium- and low-voltage applications and, together with the SFGMOS series, forms Dongwei’s product portfolio in the medium- and low-voltage shielded-gate MOSFET sector.
4. SiC MOSFETs – Third-Generation Semiconductor Power Devices
Dongwei Semiconductor possesses extensive experience in wide-bandgap semiconductor research and has launched a series of SiC MOSFET products. The company currently has the manufacturing capability for key part numbers at 650V and 1200V. SiC MOSFETs represent a key development direction for future high-performance power devices and hold broad application prospects in areas such as main drive inverters for new energy vehicles, charging points and photovoltaic energy storage.
5. TGBT (Trident-Gate Bipolar Transistor)
Dongwei’s IGBT chips utilise a proprietary TGBT device structure, enabling lower on-state voltage drops and reduced switching losses. The company has now launched multiple product series comprising first- and second-generation TGBTs:
Voltage range: 600V–1700V
Ultra-high-speed series: Operating frequencies up to 60–100 kHz
Main applications: Photovoltaic energy storage inverters, DC charging points, automotive main drive systems, OBCs, UPSs, etc.
6. SuperSi²C MOSFET and SuperSi MOSFET
Dongwei Semiconductor has also launched product series such as the SuperSi²C MOSFET and SuperSi MOSFET, further enriching its product portfolio in the power device sector. Trial production of the 12-inch super-junction MOSFET 900V and 1000V product series has been successfully completed, whilst development of the 1200V series is underway.
III. Advantages of Mingjiada Electronics Recycling
As a professional electronic component recycling service provider, Mingjiada Electronics possesses the following core advantages in the field of power MOSFET recycling:
High-value cash recycling: Based on real-time market conditions and the specific model and batch of the components, we offer recycling prices higher than the market average
Full Product Range Coverage: We recycle the full range of products, including Dongwei GreenMOS, SFGMOS, FSMOS, SiC MOSFETs, TGBTs and SuperSi²C MOSFETs
Flexible Transaction Methods: We accept various forms of stock, including unopened, original tape-and-reel reels, surplus loose components from production lines and palletised stock
Professional Valuation Team: We have a comprehensive valuation team capable of providing clients with accurate quotations swiftly
Global Service Network: With warehouses and sales outlets in Hong Kong, Shenzhen and Guangzhou
Compliance assurance: Certified to the ISO 9001 Quality Management System; formal contracts are signed to safeguard client interests
IV. Recycling Process
Mingjiada Electronics provides an efficient and transparent recycling service, with the process outlined below:
Inventory preparation: Clients organise details of the Dongwei power MOSFETs to be recycled, including model numbers, quantities and production dates
Submission of inventory list: Send the inventory list to the Mingjiada valuation team via email or fax
Professional Valuation: The company verifies model numbers, conducts visual inspections and provides a fair quotation
Transaction and Delivery: Both parties agree on the terms of the transaction and arrange logistics for delivery
Prompt Payment: Payment is completed within 1–3 working days following acceptance
V. Contact Details
If you have Oriental power MOSFET stock requiring disposal, please feel free to contact Mingjiada Electronics:
Contact: Mr Chen / Valuation Team
Mobile: +86 13410018555
Email: sales@hkmjd.com
Telephone: 86-755-83294757
Address: Rooms 1239–1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province
Mingjiada Electronics only accepts stock sourced through official channels, such as distributors, traders and end-user factories.
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