SJK: High-precision oscillators & filters for global tech industries.
sjk@q-crystal.com+86 755 8835 2869
With extensive experience in miniaturization, high precision, and low power consumption, our components are widely used across multiple industries.
Our SPXO crystal oscillators feature low power consumption, ultra-low operating voltage (down to 1.8V), excellent frequency stability, low phase jitter, and a wide operating temperature range. Multiple output options, including CMOS and LVTTL, are available to meet the requirements of different circuit designs.
Our differential oscillators support multiple industry-standard differential output formats, including LVDS, LVPECL, HCSL, and CML, delivering exceptional signal integrity, ultra-low phase jitter, and excellent electromagnetic interference (EMI) performance. With output frequencies ranging from 1 MHz to 850 MHz (custom frequencies available up to higher ranges upon request), SJK differential oscillators are designed to meet the demanding requirements of next-generation high-speed digital applications.
Our VCXO product portfolio supports a wide range of industry-standard output formats, including CMOS, LVPECL, LVDS, and HCSL, delivering excellent signal integrity for today's high-speed digital systems. With an ultra-wide frequency range from 1.25 MHz to 2100 MHz, SJK VCXOs offer outstanding frequency stability, low phase jitter, low power consumption, and superior linear tuning performance.
SJK specializes in high-performance TCXO (Temperature Compensated Crystal Oscillators) and VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillators), delivering outstanding frequency accuracy, low power consumption, low phase noise, and exceptional temperature stability of up to ±0.05 ppm.** Our product portfolio covers frequencies from **32.768 kHz to 125 MHz**, with a comprehensive range of package options, including ultra-miniature **SMD 1612, 2016, 2520, 3225, 5032, 7050**, as well as **through-hole DIP** packages to meet diverse application requirements.
SJK specializes in the research, development, and manufacturing of high-precision **OCXO (Oven Controlled Crystal Oscillator)** products. By utilizing advanced **oven-controlled technology**, our OCXO crystal oscillators effectively isolate quartz crystal resonators from external temperature variations, delivering extremely high frequency stability and excellent low phase noise performance.
SJK manufactures a full range of SMD quartz crystal resonators using both metal seam-sealed and glass-sealed package technologies to meet the diverse requirements of modern electronic designs.
SJK Crystal is a professional manufacturer of 32.768kHz quartz crystal resonators, providing comprehensive frequency solutions for low-power timing applications. Our product portfolio includes both traditional cylindrical tuning fork crystals (2×6mm and 3×8mm) and ultra-miniature SMD 32.768kHz crystal resonators in industry-standard packages such as 1610, 2012, 3215 (CM-315 compatible), and 7015 (MC-146 compatible).
A Surface Acoustic Wave (SAW) Resonator is an electronic component that achieves precise filtering and frequency control by leveraging the acoustic wave characteristics on the surface of a piezoelectric substrate. As a professional frequency control solution provider, SJK offers a full series of SAW resonators with ultra-high frequencies ranging from 299MHz to 1000MHz, featuring low insertion loss, excellent temperature stability and high anti-interference capability.
SJK high-performance RTC (Real-Time Clock) modules deliver continuous, reliable timekeeping for industrial, automotive, IoT and low-power embedded systems, maintaining accurate timestamps even when main power is cut off.
Our portfolio covers standard low-power, high-precision temperature-compensated, AEC-Q200 automotive-grade and ultra-compact SMD variants. The 3V operating current can be as low as 45nA, supporting multi-year battery-powered standby, with ±1ppm 25℃ accuracy for under 0.09s daily drift, and a -40℃ to +125℃ wide temperature range for harsh environments.
Our portfolio covers standard low-power, high-precision temperature-compensated, AEC-Q200 automotive-grade and ultra-compact SMD variants. The 3V operating current can be as low as 45nA, supporting multi-year battery-powered standby, with ±1ppm 25℃ accuracy for under 0.09s daily drift, and a -40℃ to +125℃ wide temperature range for harsh environments.
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Brand & Qualifications
Owns the brand SJK; holds certifications including IATF 16949 (automotive grade), ISO 9001, and RoHS green compliance. Products are sold in over 50 countries worldwide.
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Core Product Lines
Covers SMD crystal units, spiral oscillators (TCXO/OCXO, etc.), 32.768KHz tuning fork crystals, as well as MEMS oscillators and SAW devices.
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Manufacturing Capabilities
Features a 30,000+ sqm facility and 40+ fully automated production lines. Capable of mass production in ultra-small packages like 1008 and 1210.
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One-Stop Service
Covers high-precision scenarios including automotive electronics, AI/computing power, IoT, medical devices, and industrial control.
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Application Areas
Covers high-precision scenarios including automotive electronics, AI/computing power, IoT, medical devices, and industrial control.
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.
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.
Latest News
With extensive experience in miniaturization, high precision, and low power consumption, our components are widely used across multiple industries.
On November 7, 2024, an important event took place during the "Zero Carbon Future: Green Pioneer of Global Trade" summit, hosted by the Sustainable Development Professional Committee of the Shenzhen Electronic Commerce Association in collaboration with ES SHOW. At this event, Shenzhen Crystal Technology Industrial Co., Ltd. and the China Quality Certification Center (CQC) formalized a partnership through a contract signing ceremony. This milestone underscores our commitment to green and low-carbon innovation and marks a significant advancement in its ESG (Environmental, Social, and Governance) strategy.
2024
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Shenzhen Crystal Technology has been honored as part of the fifth batch of national "Specialized, Refined, Unique, and New Little Giant" enterprises by the Ministry of Industry and Information Technology. Effective July 1, 2023, this prestigious recognition underscores our excellence across six key indicators: specialization, refinement, innovation, industrial chain support, and leadership in crystal oscillator technology. The award was presented by Liu Yuan, Secretary of the Party Committee, during the “Government-Bank-Enterprise” exchange event in Ban Shenzhen.
2024
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On November 7, 2024, an important event took place during the "Zero Carbon Future: Green Pioneer of Global Trade" summit, hosted by the Sustainable Development Professional Committee of the Shenzhen Electronic Commerce Association in collaboration with ES SHOW. At this event, Shenzhen Crystal Technology Industrial Co., Ltd. and the China Quality Certification Center (CQC) formalized a partnership through a contract signing ceremony. This milestone underscores our commitment to green and low-carbon innovation and marks a significant advancement in its ESG (Environmental, Social, and Governance) strategy.
2024
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Founded in 1989, SJK specializes in the manufacturing of crystal resonators and oscillators. With extensive experience in miniaturization, high precision, and low power consumption, our components are widely used across multiple industries.
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Contact Us
Tel: +86 755 8835 2869
Email: sjk@q-crystal.com
Add: 12/F, Building 3C, TianAn Cloud Park Phase 1, Bantian, Longgang District, Shenzhen, 518129, China