Key manufacturers of Yin-Yang optical attenuators include Shenzhen Kaida Optical Communication Technology, Dongguan Qingying Industrial, Shenzhen Fengke Communication Equipment, ZGTECH, and other specialized Chinese suppliers.

Leading Manufacturers and Suppliers

1. Shenzhen Kaida Optical Communication Technology Co., Ltd. – Known for high consistency and reliability, their Yin-Yang attenuators have passed rigorous 1,500-cycle plug-and-unplug tests and maintain a 99.8% factory consistency, making them suitable for large-scale optical network deployments .

2. Dongguan Qingying Industrial Co., Ltd. – Offers LC/UPC Yin-Yang attenuators with adjustable attenuation ranges (1–30 dB), supporting multi-grid combinations and cost-effective bulk purchasing .

3. Shenzhen Fengke Communication Equipment Co., Ltd. – Provides carrier-grade Yin-Yang attenuators compatible with FC, SC, and LC interfaces, emphasizing high repurchase rates and stable performance .

4. ZGTECH – Produces Yin-Yang attenuators with one end as a connector and the other as an adapter, available in SC, LC, FC, ST, and MU types. Their products comply with IEC, ROHS, and Telcordia GR-910-CORE standards, offering precise attenuation, high repeatability, and reliability for both single-mode and multi-mode fibers .

5. Other Suppliers on Platforms like 1688 and Alibaba – Many factories provide FC/UPC, LC/UPC, and SC/UPC Yin-Yang attenuators with fast shipping, in-stock wholesale options, and support for international orders. These suppliers often allow sample testing, flexible payment methods (T/T, L/C, PayPal), and multiple shipping options including express, air, and sea freight .

Product Features to Consider

• Connector Types: LC, SC, FC, ST, MU, E2000
• Attenuation Range: Typically 1–30 dB, adjustable or fixed
• Compliance: IEC, ROHS, Telcordia GR-910-CORE
• Applications: Device testing, inter-device connections, LAN/WAN networks, single-mode and multi-mode fibers
• Performance: High repeatability, accurate attenuation, and durability under repeated use

Procurement Tips

• Verify factory consistency and quality control processes.
• Check for sample availability before bulk orders.
• Consider suppliers with high user ratings and proven track records in telecom projects.
• Ensure compatibility with your optical system's connector types and required attenuation range.

These manufacturers provide reliable options for both domestic and international procurement of Yin-Yang optical attenuators, supporting a wide range of optical communication applications .