SJK Crystal - a Crystal Oscillator Manufacturer for Precision Frequency Control

Precision Timing, 

Engineered for Excellence

Crystal Oscillator Manufacturer for Precision Frequency Control

36+ Years of Reliable Crystal Oscillator Solutions for Your Critical Applications

Quality Assurance

Technical Support

Rapid Response

Eco-Friendly Solutions

One-Stop Procurement

Crystal Oscillator Products
SPXO (MHZ)
Differential OSC
VCXO
TCXO
OCXO
SMD
32.768KHz Crystal
SAW Device
RTC
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A Leading Manufacturer of Precision Frequency Components
About SJK
A Leading Manufacturer of Precision Frequency Components

SJK is a crystal oscillator manufacturer based in Guangdong, China, specializing in precision frequency control components. Our brand embodies our core principles: Satisfaction quality, Just-in-time service, and Key-cost offering.


Certified with ISO 9001, 14001 & 45001 and compliant with RoHS & REACH regulations, we are committed to quality and environmental sustainability. With expertise in miniaturization, high precision, and low power consumption technologies, our components serve diverse industries worldwide.