IEC Connector Filter 3A
IEC Connector Filter 3A
EMC, IEC Connector, Power Line Filter
Technical Data:
- Product Type: ND2101-3K
- 250VAC
- 3A
- 50/60Hz
- 1500VDC line/line, 2250VDC Line/Ground
- 25/085/21
- CE UL
Product Description
IEC connector filters are essential components used to reduce electromagnetic interference (EMI) in electrical systems. They are designed to provide reliable power filtering while maintaining safety standards and compatibility with IEC power connectors. These filters help ensure smooth operation of sensitive equipment by minimizing noise and interference from the power supply. Ideal for use in a wide range of applications, IEC connector filters support both industrial and consumer electronics, improving overall system performance.
In today’s complex electronic environments, devices are increasingly susceptible to EMI-related disruptions, which can cause data errors, signal distortion, or even complete malfunction in sensitive systems. IEC connector filters effectively address these challenges by suppressing conducted interference and preventing unwanted noise from entering or leaving the device via the power line. This makes them an indispensable solution for maintaining device reliability and compliance with electromagnetic compatibility (EMC) regulations.
Compared to other EMI filter solutions on the market, our IEC connector filters stand out due to their compact design, superior attenuation performance, and certified compliance with international safety standards (such as UL, VDE, and RoHS). We also offer extensive customization options tailored to specific voltage, current, and footprint requirements—something that many off-the-shelf competitors fail to accommodate. Furthermore, our in-house engineering support ensures that customers receive optimized solutions quickly and efficiently.
Want to learn more about choosing the right EMI filter for your application? Check out our latest blog post:
“How Do I Know What EMI Filter I Need?” – a practical guide to understanding key selection criteria such as insertion loss, current rating, application type, and mounting style. Perfect for engineers and product designers looking to make informed decisions in minimizing electromagnetic interference.
Typical Applications
IEC Connector Filter 3A is ideal for use in LCD and PDP TVs, where reliable EMI suppression is essential for maintaining display clarity and system performance.
In medical applications, IEC Connector Filter 3A helps ensure sensitive diagnostic equipment operates without interference, supporting patient safety and accurate readings.
IEC Connector Filter 3A is a reliable choice for test and measurement equipment, minimizing noise to ensure precise and stable data acquisition.
Small and medium-sized machines and household appliances benefit from IEC Connector Filter 3A by achieving improved compliance with EMC standards and reducing operational disruptions.
IEC Connector Filter 3A is also suitable for single-phase and switch-mode power supplies, providing stable and clean power in compact electronic systems.
Product Features
- Easy Installation: Secured with screws on both sides for hassle-free setup.
- Medical-Grade Models Available: Compliant with IEC/EN60601-1 standards, meeting safety requirements for clearance, leakage current, and high-voltage testing.
- Versatile Connection Options: Supports quick-connect terminals, soldering, or wiring for flexible integration.
- High-Performance Filters: Features high attenuation power filters equipped with IEC 320 sockets for superior performance.
- Customizable Solutions: Tailored product designs available to meet specific customer requirements.
Technical Data
| Type | Rated Current (A) | Rated Voltage (VAC) | Rated Frequency | I Leakage (≤mA) | Test Voltage (2s) | Dim. | Circuit | Terminal | Climate Category |
| ND2101-1K | 1 | 125/250 | 50/60Hz | 0.5
250VAC/50Hz |
Line/Line
1500VDC Line/Ground 2250VDC |
Fig 1 | Fig 1 | ![]() |
25/85/21 |
| ND2101-3K | 3 | ||||||||
| ND2101-6K | 6 | ||||||||
| ND2101-10K | 10 | ||||||||
| ND2103-1KS | 1 | Fig 2 | Fig 2 | ||||||
| ND2103-3KS | 3 | ||||||||
| ND2103-6KS | 6 | ||||||||
| ND2103-10KS | 10 | ||||||||
| ND2102-10K | 10 | Fig 1 | Fig 3 | ||||||
| ND2102-16K | 16 | Fig 1 | Fig 4 |
Circuit Diagrams

Outline Drawing (mm)

Insertion Loss
Insertion loss measured in 50Ω/50Ω system, as IEC/CISPR No. 17
A=Differential mode B=Common Mode

Factory and Production Line
Why choose us?
10+ years experience
With 10+ years experience in manufacturing power line filters, we bring deep industry knowledge to every product we create.
Wide Client Base
We are trusted by 1,000+ long-term customers, showcasing our ability to consistently meet and exceed client expectations.
Proven Quality
10,000+ positive feedbacks from satisfied clients attest to the quality and reliability of our products.
Customized Solutions
We offer tailored services to meet the specific needs of our customers, ensuring that every solution is perfect for your requirements.
Competitive Advantage
We prioritize innovation, offering products with excellent performance at a competitive price, ensuring the best value for your investment.
FAQs


Yes, we can provide customization services according to your requirements.
Yes, we offer sample services for testing. (What is the minimum order quantity for the product? Usually, we support a minimum order quantity of one. )
Typically, our products are made of stainless steel, nickel-plated carbon steel, aluminum, or other specified materials. Additionally, we can accommodate special material requests.
Generally, we provide specific product dimension information on the product page. However, if you require custom dimensions, please contact us.
Yes, we provide global shipping. With convenient international freight services, we can deliver goods to wherever you need.
Typically, for small batch orders, we ship within 1-3 weeks upon receiving the prepayment.
Feel free to reach out to us by submitting an inquiry form or visiting our “Contact Us” page,and we will respond to you within 24 hours.
We accept various payment methods including T/T, letter of credit, and PayPal.
We offer tiered pricing, with more favorable prices for bulk orders.
Shipping times vary depending on the method chosen, but generally, goods are delivered within 7-30 days after dispatch.
We offer various shipping methods including by sea, air, truck, and railway.
For any product quality issues, we will respond within 24 hours and provide effective solutions.
Yes, we offer a comprehensive after-sales service, including a 2-year warranty on our products. You can rest assured after purchasing from us.
Yes, we have a professional technical team and our own EMC laboratory.
Yes, but we will review your qualifications to determine if you can become our distributor.
Yes, we accept OEM or ODM orders.
Contact us to get your quote!
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