Precision Timing, Engineered for Excellence

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

DIGITAL & INNOVATION

Never Miss a Beat. Never Miss a Deadline

Guaranteed performance and on-time delivery from our 30,000㎡ fully automated production base.

Quality Assurance

Technical Support

Rapid Response

Eco-Friendly Solutions

One-Stop Procurement

Featured Products
SPXO (MHZ)
Differential XO
VCXO
TCXO
OCXO
SMD
32.768KHz Crystal
SAW Device
RTC
View All >>
A Leading Manufacturer of Precision Frequency Components
About SJK
A Leading Manufacturer of Precision Frequency Components

 SJK is a leading frequency control components manufacturer based in Guangdong. 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.