SJK: High-precision oscillators & filters for global tech industries.
sjk@q-crystal.com+86 755 8835 2869
With years of experience in quartz crystal and oscillator manufacturing, we provide customized frequency solutions for IoT devices, automotive electronics, wireless modules, industrial equipment and consumer electronics.
Our services cover product customization, engineering support, quality control and reliable global supply.
AR 360° Virtual Visit to SJK Crystal Shenzhen
From raw material screening to final frAR 360° Virtual Visit to SJK Crystal Shenzhen
From raw material screening to final frequency calibration, every step of SJK's crystal production is open to global clients via 360° AR view, no hidden procedures.equency calibration, every step of SJK's crystal production is open to global clients via 360° AR view, no hidden procedures.
1
Do you provide custom crystal oscillator solutions?
Yes, we provide customized crystal oscillator solutions according to frequency, package size, voltage and stability requirements.
2
Can you support OEM projects?
Yes, we support OEM and ODM projects for global electronic manufacturers.
3
What industries use your oscillators?
Our products are widely used in wireless communication, automotive electronics, IoT and consumer electronics.
4
Can a smaller package crystal (e.g., 2016) directly replace a larger one (e.g., 3225)?
Yes, but the PCB footprint must be redesigned. Smaller crystals usually have higher ESR, so ensure the MCU driving capability is sufficient.
5
What is load capacitance (CL)?
A key parameter for oscillation. Mismatch causes frequency deviation.
6
Key principle for layout?
Place the crystal close to MCU pins with short traces.
7
Most common reason for no oscillation?
Incorrect capacitors, poor soldering, insufficient drive, or damaged crystal.
8
What is RTC crystal?
32.768kHz crystal for timekeeping.
9
Why cylindrical 32k crystals?
Traditional design, now being replaced by SMD types.
10
OE pin floating or high?
Usually internal pull-up; tying high is safer.
Get in touch with us
Just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs!
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