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Since 1991, we've been engineering high-performance CATV and PDU equipment with cutting-edge innovation, unmatched quality, and global reliability. Trusted by telecom providers and network integrators worldwide.
SQ Electronics Co., Ltd is a technology enterprise specialized in the R&D and manufacturing of CATV and PDU related products. Our journey began in 1991 as a Shanghai-based company (Shanghai QianJin Electronic Equipment Co., Ltd). Over decades of innovation and growth, we established a 17,000 square meter manufacturing base in Suzhou.
In September 2024, we officially transitioned to SQ Electronics (Suzhou) Co., Ltd, marking a strategic upgrade and a new chapter in our evolution. We carry forward the core team, technology, resources, and experience of the original company, committed to continuous innovation and excellence.
Including 30% engineers and technicians
State-of-the-art manufacturing in Suzhou
Products trusted in telecom networks worldwide
ISO-certified processes and rigorous testing
Explore our comprehensive lineup of CATV and PDU equipment, engineered for performance, durability, and seamless integration into modern broadband networks.
High-performance optical node for reverse path applications with superior signal integrity.
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Compact, high-gain RF amplifier ideal for last-mile signal boosting in FTTH networks.
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1.2 GHz bandwidth amplifier with low distortion and high output stability.
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Miniature optical receiver for PON applications with excellent sensitivity.
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EDFA-based amplifier for long-haul optical signal boosting with low noise.
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40–3000 MHz wideband receiver block for high-frequency CATV systems.
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Signal repeater for RFoG networks ensuring extended reach and signal clarity.
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High-isolation diplex filter for separating forward and return path signals.
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Advanced RFoG node for seamless fiber-to-home signal distribution.
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Compact 1.2 GHz micro receiver for space-constrained installations.
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High-linearity amplifier for US market CATV systems with low power consumption.
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35 dB gain amplifier with excellent noise figure and overload resistance.
View Details →Engineered for excellence, built for the future.
Every product undergoes rigorous testing to ensure reliability, longevity, and compliance with international standards.
Our engineering team continuously develops cutting-edge solutions to meet evolving network demands.
With offices in Shanghai and Suzhou, we provide responsive technical support and logistics worldwide.
17,000 m² state-of-the-art facility with automated production lines and strict quality control.
Products designed for high bandwidth, low distortion, and long-term stability in demanding environments.
We work closely with clients to deliver tailored solutions and long-term technical collaboration.
Our products meet the highest international standards for safety, performance, and electromagnetic compatibility.
Get answers to common questions about our products and services.
SQ Electronics originated in 1991 as Shanghai QianJin Electronic Equipment Co., Ltd. In 2024, we restructured into SQ Electronics (Suzhou) Co., Ltd, expanding our manufacturing base and technological capabilities.
All products are manufactured at our 17,000 square meter facility in Suzhou, Jiangsu Province, China, under strict quality control protocols.
Yes, our engineering team supports OEM/ODM projects and can customize products to meet specific technical and regulatory requirements.
Our products are certified by FCC, EMC, and SQC, ensuring compliance with international safety and performance standards.
Visit our official website at sq-catv.com to access support resources and contact information.
For inquiries, technical support, or partnership opportunities, visit our official website to contact us directly.
Phone: +86-21-64957666
Email: eddy@sq-cabledevice.com
Headquarters: No. 5 Qidu Avenue, Suzhou City, Jiangsu Province, China
Shanghai Office: 701, 7th Floor, No. 1768 Yishan Road, Minhang District, Shanghai, China
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