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Changzhou Southern Electronic Element Factory Co., Ltd. specializes in high-quality inductors, transformers, resistors, and custom passive components for global industries — from consumer electronics to aerospace systems.
Founded in 1989, we are a leading manufacturer of sensitive electronic components with decades of expertise in passive component engineering and mass production.
Changzhou Southern Electronic Element Factory Co., Ltd. (Southern Group) has been a trusted name in electronic components manufacturing for over three decades. We specialize in inductors, resistors, electronic transformers, and other passive components critical to modern circuitry.
Our products are widely used in printed circuit boards across consumer electronics, industrial automation, telecommunications, and even high-sensitivity aviation equipment. With production capacity reaching hundreds of millions of units annually, we serve clients in multiple countries with consistent quality and reliability.
We offer a comprehensive range of passive components, including inductors, transformers, resistors, chokes, fuses, and diodes — available in thousands of models or custom-built to your specifications.
Stable inductance values for reliable performance in power supplies and filtering circuits.
InductorHigh-efficiency design with low EMI, ideal for audio and power applications.
Inductor
Compact and efficient for noise suppression in high-frequency circuits.
Common Mode ChokeOptimized for switch-mode power supplies and RF applications.
TransformerHigh power handling and precision resistance for industrial controls.
ResistorLow noise and high stability for precision analog circuits.
ResistorSurface mount design for compact PCB layouts and automated assembly.
ResistorEffective EMI filtering in data lines and power inputs.
InductorProtective components for overcurrent and short-circuit protection.
FuseReliable rectification and signal processing in various electronic systems.
DiodeWe offer full custom development of inductors, transformers, resistors, and wound components tailored to your exact specifications.
Southern Group has extensive experience in custom winding, magnetic design, and precision resistor manufacturing. Whether you need a unique inductor for a power supply, a specialized transformer for medical equipment, or a high-power resistor for industrial machinery, we can develop and produce it.
We produce fixed inductors, toroidal inductors, rod core chokes, common mode chokes, and custom-designed inductors for various applications including power supplies, EMI filtering, and RF circuits.
Yes, we offer full custom transformer design and manufacturing, including high-frequency transformers, power transformers, and signal transformers tailored to your voltage, current, and size requirements.
We manufacture wire wound resistors, thin film resistors, fusible resistors, and surface mount (SMD) resistors in various power ratings and tolerances.
Yes, we can provide samples for evaluation. Please contact us directly through the official website to request product samples.
Our components are used in consumer electronics, industrial automation, telecommunications, medical devices, automotive systems, and aerospace applications.
For inquiries, quotes, or technical support, please contact us through the official website.
West No.6 Building, Xinxin Intelligent Industrial Park
No.1 Xinchang Road, Wuxing Street
Zhonglou District, Changzhou City
Jiangsu Province, P.R. China
Contact: Safe Liu
Tel: +86-0519-83976620
Fax: +86-0519-83295710
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