Company Profile

Shenzhen Crystal Technology Industrial Co., Ltd. is a professional manufacturer of frequency control components based in Shenzhen, China. With a strong emphasis on Satisfaction quality, Just-in-time service, and Key-cost offering, our brand name SJKrepresents our commitment to these principles.



Founded in 1989, SJK specializes in the manufacturing of crystal resonators and oscillators. With over 30,000 m² of advanced production facilities and 30 fully automated production lines, we ensure high efficiency and precision in every process.


We are certified with ISO 9001, 14001 & 45001 and our products comply with RoHS & REACH regulations, demonstrating our dedication to quality standards and environmental sustainability. With extensive experience in miniaturization, high precision, and low power consumption, our components are widely used across multiple industries.