• up to 10Ghz 70dB 230v EMI Power Line Filter For Electronic Devices
  • up to 10Ghz 70dB 230v EMI Power Line Filter For Electronic Devices

up to 10Ghz 70dB 230v EMI Power Line Filter For Electronic Devices

Our 230 V EMI Power Line Filter delivers up to 70 dB suppression across 10 GHz, with multiple current ratings and a compact through-hole design. This robust component is ideal for engineers sourcing reliable rf filters.
High Light
230v EMI Power Line Filter, 70dB EMI Power Line Filter, 70dB emi noise filter
Type
EMI Filter
Transfer Function
Low Pass
Package Type
Throught Hole
Nominal Center Frequency
50/60Hz
3dB Bandwidth
4K
Insertion Loss
100dB
Input Impedance
50ohm
Stopband Attenuation
70-100dB
Rated Voltage
250VDC
Rated Current
3A 5A 10A
LINES NUMBER
4
Application
Air-conditioner
Test Voltage
L-G 1000VDC
Insulation Resistance
100M Ohm @ 500VDC
Shielding Effective
100dB @ 14K-10GHz
Port
Changzhou Shanghai Hangzhou Or Others
Place of Origin
Jiangsu, China
Brand Name
Nenglv
Certification
ce
Model Number
SF-K4
Minimum Order Quantity
>=1 Pieces
Packaging Details
8 PCS IN ONE CARTON THE GROSS WEIGHT OF ONE CARTON IS ABOUT 18KG
Supply Ability
1000 Piece/Pieces per Week
$120.00

Description

Optimized EMI Filtration for Electronic Equipment Integration

The 230 V EMI Power Line Filter is engineered for professionals requiring precise suppression of conducted electromagnetic interference on power lines. Targeted at design engineers, manufacturers, and system integrators, this four-line filter supports current capacities of 3 A, 5 A, and 10 A to accommodate diverse device requirements. It is particularly suitable for inclusion in power supply boards and shielded enclosures, enabling protection of sensitive electronics from EMI-induced malfunction. As a trusted solution from an established rf filters manufacturer, this product aligns with international certification standards and is complemented by comprehensive technical support, facilitating seamless integration into complex systems.

Advanced Electrical Characteristics Ensuring Robust EMI Mitigation

This EMI power line filter provides a wide stopband attenuation range of 70 to 100 dB and an insertion loss of up to 100 dB, covering frequencies up to 10 GHz. Its pass band extends to 7 kHz, while the device is rated for 250 VDC, ensuring compatibility with standard industrial applications. The through-hole package format enhances PCB mounting reliability and supports consistent impedance matching at 50 ohms, reducing signal reflection and interference. Manufactured under CE certification, this rf filter exhibits consistent performance metrics and durability, backed by in-house testing facilities equipped with spectrum analyzers and standard signal sources, underpinning proven electromagnetic compatibility.

Deployment Across High-Demand Industry Sectors

This EMI filter finds application spanning consumer electronics, industrial automation, and medical device sectors. It contributes to compliance with EMC regulations by efficiently blocking EMI noise that can compromise device functionality and safety. The product’s adaptability allows for OEM customization, making it suitable for integration into prototype development workflows and final production lines. By effectively limiting conducted emissions, it supports interference reduction in environments requiring stringent electromagnetic shielding such as RF shielded rooms and laboratory benches, delivering system-level benefits and compliance assurance for manufacturers and technical specialists.



4 lines 3a emi signal filter for fire alarm rf shielding room 

Electronic equipment such as computers and other peripherals can leak sensitive information over conducted and radiated electromagnetic emanations. These signals transmitted down an unprotected telephone or a power line can potentially be intercepted by an enemy or a competitor over the same telephone or power cable many miles away. Our filters stop the high-frequency EM signals (or noise) emanating inside the secure environment so they can’t travel outside the room/ facility overpower or communication cables. 

Product SPECIFICATION 

RATED VOLTAGE 250VDC
RATED CURRENT 3A 5A 10A
LINE NUMBER 4 LINES
PASS BAND 7k

Electronic devices play a vital role in nearly every industry, from hospitals, to industrial manufacturing, to the military. Specific devices rely on uninterrupted and dependable electricity to operate correctly. However, as more and more electronic devices enter the market, they create electromagnetic interference that can cause these devices to malfunction, crash or fail. To protect electronic devices and systems from damage, EMI Filters block adverse inferences and allow a steady flow of power. Here, we'll take an in-depth look at EMI fundamentals, EMI filter applications and the consequences of EMI across various sectors.

There are two main types of EMI — conducted EMI and radiated EMI. Conducted EMI goes through conductors, such as wires or power lines, while radiated EMI travels through the air and does not require a conductor. Both conducted and radiated EMI can impact the performance of electronic devices through impairment, degradation, malfunctioning or system failure.


Product Advantages

Modular Design Enabling High Integration Flexibility

The filter’s structural design incorporates a four-line configuration within a compact, through-hole package, facilitating straightforward mounting on PCBs widely used in electronic assemblies. This modular approach allows engineers to select appropriate current ratings from 3 A to 10 A based on specific application demands. The robust electrical architecture supports consistent impedance at 50 ohms, critical for maintaining signal integrity in high-frequency operations. As a reliable rf filters supplier, the product’s compliance with CE standards and the availability of tailored packaging options further enhance its suitability for incorporation into diverse electronic systems requiring electromagnetic interference mitigation.

Superior Performance with Reliable User Implementation

This EMI filter delivers measurable attenuation and low insertion loss, ensuring that despite effective EMI suppression, the power integrity to connected devices remains uncompromised. Its high suppression capability up to 10 GHz minimizes the risk of EMI leakage, thereby safeguarding device performance and extending operational lifespan. The design supports easy integration into standard test setups and production environments, backed by manufacturer expertise providing both technical consultancy and after-sales support. These facets combine to offer users of rf filters a dependable component that helps maintain system efficiency while facilitating compliance with rigorous electromagnetic compatibility standards.


Use Scenarios

EMI Suppression in Consumer Electronics Pre-Compliance Testing

Within consumer electronics manufacturing, engineers must ensure devices conform to EMC regulatory limits before market release. The EMI power line filter acts as a critical component in lab benches and test rigs, filtering high-frequency noise on power lines during product pre-compliance testing. Its broad frequency suppression capabilities enable detailed analysis and remediation of emission issues, allowing manufacturers to optimize designs early in development. This facilitates alignment with standards such as CISPR, minimizing costly rework. The device integrates directly into EMI test setups, ensuring realistic load conditions while providing reliable attenuation as specified by the rf filters manufacturer.

Implementation in Industrial Automation and Shielded Environments

Industrial automation sectors frequently require robust EMI filters to maintain operational stability amidst heavy electromagnetic noise. Installed in shielded enclosures and alongside frequency inverter drives, the EMI filter safeguards control circuitry from conducted interference that could prompt system malfunctions. Its high attenuation performance combined with a resilient through-hole mounting design yields superior longevity and compliance adherence. The filter’s configuration supports system integrators by simplifying installation and maintenance within complex electrical cabinets, and its CE certification guarantees conformity to international electromagnetic compatibility mandates, a priority for industrial equipment manufacturers utilizing rf filters supplier solutions.


Our Company
  • We are a professional and famous EMI filter manufacturer.
  • Our technical team has more than 10 years’ experience in designing EMI filter. We know UL VDE CSA CE CQC etc safety standard very well.
  • Our technical service team learn many kinds of test standard such as industrial application (IEC61800-3 for frequency inverter drive EN12015 for elevator EN55011 for ISM device etc) and military application (GJB151A GJB152A etc).We can solve EMI problem quickly effectively and low-costly.
  • Our test equipment: LCR digital bridge/voltage proof tester/insulation resistance tester/spectrum analyzer/inductor tester/standard signal source/shield room/interference intensity tester etc
 
Before-sale:
1.All inquires will be replied with 8 hours. 7D/24H service,Please feel free to contact us with Email/TM/Skype.
2.Strong technical team and Professional sales.
3.Customized packaging is acceptable.
4.Welcom customers from all the world to visit our factory. 
After-sale:
1.All emi filter will be tested and adjusted before shipping.
2.After receiving the products,Any question we will try our best to solve.


FAQ

What current ratings are available for your EMI power line filters?

Our EMI power line filter supports multiple current options of 3 A, 5 A, and 10 A, suitable for various industrial applications. This flexibility helps integrate rf filters reliably into different electronic devices, ensuring effective EMI suppression at rated voltages up to 250 VDC.

Can you provide customized EMI filters for special voltage or current requirements?

Yes, we accept OEM orders and can customize EMI filters based on specific voltage and current needs. To proceed, provide your label design or detailed specifications, and our engineering team will work with you to develop tailored rf filters solutions.

How do I install the 230 V EMI power line filter on my devices?

The product features a through-hole package for easy mounting on PCBs or device chassis. It is designed for quick integration into shielded environments or lab setups, minimizing insertion loss while maintaining stopband attenuation of 70–100 dB for effective interference suppression.

What shipping and payment methods are supported for international orders?

We ship worldwide via EMS, DHL, FedEx, UPS, and TNT, with online tracking available. Accepted payment methods include T/T, L/C, D/A, D/P, Western Union, and PayPal, ensuring smooth transaction processes for business customers purchasing EMI power line filters.

1. How do I pay for my purchase order?

We can accept following payment method: T/T, L/C, D/A, D/P, and we also can accept Westernunion,Paypal.If you want another payment please contact us.

2. Is there a tracking number for my item?

Yes, of course. We usually ship your goods by EMS, DHL, Fedex, UPS, TNT with online track, you can view the ship status on website.

3. Could you do OEM for us?

Sure,we accept OEM order,please provide us the label picture.

4. How does your factory do related quality control?

Quality is top priority. We attach great importance to quality control from the very beginning of manufacturing

CONTACT US

If you have any queries, get in touch today! Don't hesitate. We try to take the extra step for our customer satisfaction.
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