Dear Valued Customs,
Scaling up global networks to handle next-generation gigabit speeds demands absolute signal stability. When managing expanded bandwidths, ensuring every component can withstand interference is your top priority.
At SOONTAI TECH CO., LTD., your network's seamless expansion is our focus. Instead of raw hardware, you receive high-performance core components engineered to secure your infrastructure. Here is a look at the field-proven, highly reliable RF solutions optimized for your DOCSIS 4.0 & 3.1 applications.
Time-Tested Passive Components for Your Network Stability
Your data signals deserve a flawless path through the network. These long-standing, fine-tuned passive components are built to isolate multi-band interference under continuous operational demands:
◇ Low Pass Filter (LPF-204 Series)
Secure your upstream core with a reliable 5–204 MHz pass band that guarantees an ultra-low insertion loss of just 1.0 dB (TYP). High-frequency noise is strictly blocked by a massive rejection of ≧45 dB (MIN) across the 258–1218 MHz stop band.

◇ 2.6 GHz DC Blocks (DB1 Series)
Deploy a transparent, reliable shield to protect sensitive modems and test equipment from hazardous voltage. Supporting an expansive 5–2600 MHz frequency range with a microscopic 0.4 dB (TYP) insertion loss , these blocks instantly withstand 100V to 1000V DC depending on your model selection.

◇ High-Capability Diplexer (DPX1 Series)
Expand your bandwidth ceiling up to 1.8 GHz for Extended Spectrum DOCSIS (ESD) networks. This component delivers strict isolation between upstream (5–204 MHz) and downstream (258–1800 MHz) paths, a capability refined through years of engineering expertise.

Certified Protection You Can Rely On
Soontai component is strictly fine-tuned to meet the rigorous EN 50083-2 Class A screening efficiency standards, ensuring absolute electromagnetic compatibility (EMC) and weather-proof options available (IPx4).
Whether you are looking to secure your existing DOCSIS 3.1 layout or deploying the massive capacities of DOCSIS 4.0, Soontai’s engineering provides the exact components your network demands.
Explore Your Technical Resource:
Click Here to Access the Full DOCSIS 4.0 Product Guide (E-Book)
Let us help you elevate your hardware tier. For custom technical specifications or quick inquiry quotes, please reply directly to this email or reach out to our team at stephanie.wang@soontai.com.
Best Regards,
The Engineering & Sales Team
SOONTAI TECH CO., LTD.