HCI HangJing Electronics: A high-quality manufacturer in the piezoelectric crystal industry.

　　Suzhou Hangjing Electronics Technology Co., Ltd. was founded in 2014 and specializes in the research, design, production, and sales of quartz frequency control components, making it an integrated R&D, manufacturing, and sales-oriented small-to-medium-sized technology enterprise. With a professional team and advanced production technologies, the company has established comprehensive product lines covering quartz crystals, crystal oscillators, crystal filters, temperature-compensated (TCXO), and voltage-controlled (VCXO) products. Supported by a robust supply chain system, high-quality products, extremely low failure rates, and fast, professional pre- and post-sales services, Hangjing Electronics maintains leading positions in both technology and quality within the piezoelectric crystal industry.
　　
　　Our products are widely applied in mobile phones, tablets, satellite communications, automotive systems, GPS, personal computers, wireless communications, and consumer electronics, serving essential functions such as signal generation, transmission, and filtering. Continuously committed to technological R&D and quality assurance, Hangjing operates across global locations including Hong Kong, Taiwan, Beijing, Shenzhen, Chengdu, Shanghai, Hangzhou, and Suzhou, enabling us to serve major global electronics manufacturers.
　　
　　I. Product Recommendations
　　
　　Quartz crystal oscillators are compact active clock modules integrating an oscillator IC and a quartz crystal. When applying crystal oscillators, parameters such as actual circuit load, negative resistance, and drive level typically require testing to select an appropriate oscillator for optimal matching.
　　
　　Compared with standard quartz crystal oscillators, differential output series (LVPECL, LVDS, HCSL) offer advantages of high speed, low power consumption, and low phase noise, making them suitable for optical fiber communication, network switches, Gigabit Ethernet, high-end servers, and other advanced networking equipment.
　　
　　OCXO (Oven-Controlled Crystal Oscillators) maintain quartz crystal chips at a near-constant temperature within a thermostatic chamber. These oscillators commonly use high-precision SC-cut or cost-effective AT-cut quartz crystals. Offering frequency stability at the 10⁻⁹ level, exceptionally low aging rates and phase noise, along with outstanding short-term stability, shock resistance, and acceleration performance, OCXOs are extensively used in applications requiring high-frequency precision, such as communication base stations, microwave radar, precision instruments, telemetry, and navigation systems. Available in various package sizes, common frequencies include 5MHz, 10MHz, 30MHz, and 100MHz, with support for customized requirements like 2E/3E specifications.
　　
　　VCXO (Voltage-Controlled Crystal Oscillators) feature a control voltage input pin that adjusts the output frequency deviation by varying the applied control voltage. Offered in multiple package sizes, frequencies, frequency deviations, and output types, VCXOs are primarily used in communication systems, precision instruments, military applications, and other fields requiring flexible frequency tuning.
　　
　　TCXO (Temperature-Compensated Crystal Oscillators) utilize temperature-load compensation circuits to achieve near-flat frequency vs. temperature characteristics, classifying them as high-precision oscillators. Their frequency stability can be controlled within ±1PPM while achieving compact dimensions. Available in both voltage-controlled and non-voltage-controlled variants, TCXOs offer diverse options in package size, frequency, stability, and output type, making them ideal for communication/navigation systems, mobile terminals, precision instruments, and military applications.
　　
　　In addition, HCI also provides customized filter product series (crystal filters, SAW filters, ceramic filters) and resonator product series (SAW resonators, ceramic resonators), among others.
　　

　　II. Brand Advantages
　　
　　Hangjing Electronics Technology Co., Ltd. (HCI) emphasizes adapting to evolving market and customer needs, delivering deeper, more tailored, and better-aligned solutions to address client challenges.
　　
　　1. Technical Capabilities
　　
　　2. Technical Support
　　
　　3. Certifications
　　
　　4. Compliance with RoHS / REACH SVHC regulations