Noordin Etech

Noordin Etech Noordin Etech Co., Ltd is a high technological enterprise including the national defense and EMC, specialized in designing, manufacturing and marketing.

Noordin Etech — Your Partner in EMC Solutions
Filters: EMI/EMC power & signal
Materials: conductive gaskets & elastomers
Projects: EMC chambers (anechoic, RF rooms, MRI)
Custom design • Engineering support • Global export The enterprise is committed to the application and promotion of EMC technology. It benefits the customers with power line and signal filters within frequency range from 10KHz to

40GHz, insertion loss over 100dB. The products have been widely used in fields of EM shielded room and anechoic chamber, electric locomotive, information security, EMC test, medical instruments, industrial control, measuring system, military application & power driving system etc.

08/05/2026

🎬 How to Reduce EMI in High-Power VFD Systems?

In high-power industrial systems, VFDs, inverters, and servo motors can generate strong switching noise through power lines, affecting system stability and EMC performance.

The ND4310-128W Industrial Power Line Filter is designed to suppress conducted EMI in demanding industrial environments, helping ensure cleaner power and more reliable operation.

🔧 Key Features
▪ Voltage: 250 / 440 VAC
▪ Current: 1–1600 A
▪ Suitable for high-power VFD and inverter systems
▪ Multi-stage EMI suppression for improved stability

📍 Typical Applications
▪ Variable frequency drives
▪ Industrial automation systems
▪ Servo motor applications
▪ Power control and conversion systems

💡 Proper EMI filtering helps reduce electrical noise, improve system reliability, and support EMC compliance.

📌 Learn more: www.emcnoordin.com

06/05/2026

🎬 How Are Critical Control Signals Protected in EMC Environments?

In shielded rooms and EMC-sensitive systems, control and communication lines — such as HVAC control, fire alarm audio, and environmental monitoring — must remain stable and interference-free.

However, mixed AC/DC control lines can be vulnerable to conducted EMI.

The GSF202-3 Signal Line Filter is designed to protect critical control signals and ensure reliable transmission in complex electromagnetic environments.

🔧 Key Features
▪ Voltage: 0–250 VAC / 500 VDC
▪ Current: 1–6 A
▪ Shielding effectiveness: >100 dB, 150 kHz–18 GHz
▪ Designed for AC/DC mixed control signal filtering

📍 Typical Applications
▪ HVAC and air-conditioning control systems
▪ Fire alarm and voice broadcast systems
▪ Environmental monitoring systems
▪ Shielded rooms and control cabinets

💡 Proper signal filtering helps reduce noise interference, false triggering, and communication errors in EMC-controlled facilities.

📌 Learn more: www.emcnoordin.com

05/05/2026

🎬 How Do EV & New Energy Test Systems Maintain EMC Accuracy?

In EV and new energy testing environments, high-voltage DC systems can generate strong conducted interference, affecting measurement accuracy, system stability, and EMC test repeatability.

The GDF271C-500AE 1500 Shielded DC Power Filter is designed to suppress wideband EMI in high-voltage DC systems, helping ensure clean, stable, and reliable test conditions.

🔧 Key Features
▪ Voltage: 0–3000 VDC
▪ Current: 16–1600 A
▪ Shielding effectiveness: >100 dB, 9 kHz–18 GHz
▪ Designed for high-voltage DC EMI suppression

📍 Typical Applications
▪ EV and automotive electronics testing
▪ Full vehicle EMC test platforms
▪ New energy systems
▪ Energy storage and power systems

💡 Proper DC power line filtering helps reduce high-voltage noise, improve test stability, and support accurate EMC compliance testing.

📌 Learn more: www.emcnoordin.com

04/05/2026

🎬 Why Military EMC Labs Need High-Performance DC Power Line Filters

In military-grade EMC test environments, even low-frequency conducted noise can affect measurement accuracy and system reliability.

The GDF271C-200J Shielded DC Power Line Filter is designed for high-voltage DC power systems in sensitive EMC laboratories, helping suppress conducted interference and maintain a stable electromagnetic environment.

🔧 Key Features
▪ Voltage: 0–3000 VDC
▪ Current: 16–1600 A
▪ Shielding effectiveness: >100 dB, 9 kHz–18 GHz
▪ Optimized for high insertion loss at low frequencies

📍 Typical Applications
▪ Military EMC laboratories
▪ High-precision EMI/EMC testing systems
▪ Shielded test environments
▪ High-voltage DC power systems

💡 High-performance DC filters help ensure cleaner power, more stable testing conditions, and reliable EMC measurement results.

📌 Learn more: www.emcnoordin.com

04/05/2026

🎬 Why High-Performance DC Power Line Filters Matter in Military EMC Labs

In military-grade EMC test environments, even low-frequency conducted noise can affect measurement accuracy and system reliability.

The GDF271C-200J Shielded DC Power Line Filter is designed for high-voltage DC power systems, providing strong suppression of conducted interference across a wide frequency range.

🔧 Key Features
▪ Voltage: 0–3000 VDC
▪ Current: 16–1600 A
▪ Shielding effectiveness: >100 dB, 9 kHz–18 GHz
▪ Optimized for low-frequency, high-insertion-loss performance

📍 Typical Applications
▪ Military EMC laboratories
▪ High-precision EMI/EMC testing systems
▪ Shielded test environments
▪ High-voltage DC power systems

💡 Why It Matters
High-performance DC filters help maintain a stable electromagnetic environment, supporting repeatable, reliable, and compliant EMC testing.

📌 Learn more: www.emcnoordin.com

01/05/2026

🎬 How Do Waveguide Windows & Honeycomb Panels Block EMI While Allowing Airflow?

In shielded rooms and anechoic chambers, airflow and visibility are often required — but every opening can become a potential path for EMI leakage.

That’s where waveguide windows and honeycomb panels come in.

They are designed to allow air or visibility while maintaining high electromagnetic shielding performance, helping protect the integrity of EMC environments.

🔧 Key Features
▪ Cell size: 3.2 / 4.2 / 5.2 mm, customizable
▪ Shielding effectiveness: 60–110 dB
▪ Materials: carbon steel with nickel or tin plating, customizable
▪ Custom sizes available for different installation needs

📍 Typical Applications
▪ EMC shielded rooms
▪ Anechoic chambers
▪ Shielded enclosure ventilation panels
▪ EMC laboratories and test facilities

💡 Why It Matters
Without proper shielding, even small ventilation or observation openings can compromise the entire EMC environment. Waveguide-based designs help achieve both airflow and EMI protection.

📌 Learn more: www.emcnoordin.com

29/04/2026

🎬 How Do You Keep Control Signals Stable in EMI-Sensitive Environments?
Signal Filtering Explained

In shielded rooms, even low-power control lines—such as those used in VFD air-conditioning systems—can pick up or leak electromagnetic interference.

This may cause unstable control, system errors, or unreliable operation.

The GSF112-3 Signal Filter is designed to protect control signal lines by ensuring clean, stable, and reliable signal transmission, even in demanding EMC environments.

🔧 Key Features
▪ Voltage: 0–250 VAC / 500 VDC
▪ Current: 1–6 A
▪ Shielding effectiveness: >100 dB from 150 kHz to 18 GHz
▪ Designed for VFD air-conditioning control signals

📍 Typical Applications
▪ Shielded rooms
▪ VFD HVAC control systems
▪ EMC-sensitive control environments

💡 Why It Matters
Without proper filtering, control lines can introduce unwanted noise into the system, affecting both equipment performance and EMC compliance.

Standards such as CISPR, IEC, and MIL-STD require controlled electromagnetic conditions, making signal filters an essential part of stable and compliant system design.

📌 Learn more: www.emcnoordin.com

29/04/2026

🎬 Why High-Voltage EMI Filters Matter in EMC Testing
Clean Power for Accurate and Reliable Results

In high-voltage environments such as EV testing, renewable energy systems, and full-vehicle EMC test setups, power lines can carry significant electromagnetic interference. This noise may affect measurement accuracy, system stability, repeatability, and compliance results.

So how can engineers maintain reliable EMC test conditions?

The GDF271C-100G/1000 EMI Filter is designed to suppress conducted noise in high-voltage DC systems, helping create a cleaner power supply and a more controlled electromagnetic environment.

🔧 Key Features
▪ Voltage range: 0–3000 VDC
▪ Current range: 16–1600 A, customizable
▪ Shielding effectiveness: >100 dB, 14 kHz–18 GHz
▪ Designed for high-voltage EMC testing applications

📍 Typical Applications
▪ Renewable energy systems, including PV and energy storage
▪ EV and automotive electronics testing
▪ Full-vehicle EMC testing environments
▪ High-voltage DC test systems

💡 Why It Matters
Without proper filtering, high-voltage systems may introduce unwanted noise that impacts test accuracy, repeatability, and compliance evaluation.

Standards such as CISPR, IEC, and MIL-STD require controlled electromagnetic conditions, making EMI filters an essential part of professional EMC test setups.

📌 Learn more: www.emcnoordin.com

24/04/2026

💡 Why does lighting matter in EMC shielded rooms?

In EMC chambers and RF-sensitive laboratories, even a light fixture can become a source of electromagnetic interference. That means lighting is not only about brightness — it is also about maintaining a clean and stable testing environment.

For shielded rooms and anechoic chambers, LED lighting should provide reliable illumination while minimizing EMI emissions. A suitable lighting system helps protect test accuracy, supports stable EMC conditions, and ensures the environment remains compatible with sensitive equipment.

Key factors to consider include voltage range, color temperature, luminous flux, and low-EMI performance. The right solution can make daily testing safer, clearer, and more reliable.

Good lighting helps you see better. EMC-compatible lighting helps you test better.

Learn more: www.emcnoordin.com

23/04/2026

Why do VFDs and servo drives still create EMI problems even in advanced industrial systems?

The answer is simple: high-speed switching creates conducted noise on the power line. If that noise is not controlled, it can affect nearby equipment, reduce system stability, and make EMC compliance more difficult.

That’s why power line filters matter. Installed at the input stage, they help suppress conducted EMI and support cleaner, more reliable operation.

The ND3713T-20 Industrial Power Line Filter is designed for inverter, VFD, and servo drive systems, with a wide current range from 1 A to 1600 A for demanding industrial applications.

In industrial environments, stable power is not just about performance. It is also about compatibility, reliability, and long-term system confidence.

Learn more: www.emcnoordin.com

22/04/2026

Why do signal lines still need EMI protection inside a shielded system?

Even in shielded rooms, equipment cabinets, or EMC test environments, multi-pair communication cables can still pick up electromagnetic interference. When that happens, signal quality may drop and communication stability can be affected.

That’s why signal line filters are important. They help suppress conducted EMI and support cleaner, more reliable transmission, especially in high-density communication systems.

The GSF-10-T2 Signal Line Filter is designed for 10 to 100 pair communication lines, helping maintain stable multi-channel transmission while supporting strong shielding performance in EMC-critical applications.

Typical applications include shielded rooms, electronic shelters, shielded cabinets, anechoic chambers, and EMC test environments.

Stable signals matter. Good EMC design helps make that possible.

Learn more: www.emcnoordin.com

Address

No. 11, Shunyuan Road, Xinbei District
Changzhou
213125

Opening Hours

Monday 08:00 - 17:00
Tuesday 08:00 - 17:00
Wednesday 08:00 - 17:00
Thursday 08:00 - 17:00
Friday 08:00 - 17:00
Saturday 08:00 - 17:00
Sunday 08:00 - 17:00

Telephone

+8651986815058

Website

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