Power Line Common Mode Choke

Shinhom's Power Line Common Mode Choke is designed to reduce electromagnetic interference (EMI) and radio-frequency interference (RFI), ensuring reliable performance in power systems.

Key Features:

• Effective EMI/RFI Suppression:Reduces electromagnetic and radio-frequency interference to enhance the reliability and performance of electrical equipment.
• Wide Application Range:Suitable for use in a variety of electrical systems, including industrial machinery, home appliances, and telecommunications.
• High Current Handling Capacity:Supports high current flows, making it ideal for both residential and industrial applications.
• Durable & Reliable:Built with robust materials to withstand high-stress environments, ensuring long-lasting operation.
• Compact Design:Small footprint for easy integration into existing systems, without compromising on performance.

Product Specifications:

• Inductance Range: 1mH – 30mH
• Current Range: 1A – 5A
• Operating Temperature: -25°C to +85°C
• Impedance: ≥50Ω
• Frequency Range: 50Hz – 100kHz
• Max Current Rating: 3A – 5A (varies by model)
• Mounting Type: Through-hole and surface-mount options

1. CM Family

SMD Common Mode Line Filter

Common Mode Chokes For Line Filter

FEATURES:

• Ferrite Core bobbin construction
• High frequency and Large current
• Excellent Mechanical Strength
• Excellent Solderability
• Excellent Frequency performance
• Low Profile and Low cost
• Current rating up to 1.4A
• Inductance range: 120 to 5000uH
• Frequency range to 200 MHz
• RoHS compliant

APPLCATIONS:

• Video Cameras
• Communication System
• Automotive Systems
• Liquid Crystal Televisions
• Hard Disk Drives
• Network Systems
• Computer Peripheral Equipment
• EMI suppression
• DC-DC Converter
• Input/Output line fitter
• RFI noise suppression

Series in this family

2. EE Family

Common Mode Line Chokes

FEATURES:

• Common mode chokes are used to reduce AC line conducted interference

     produced by switching power supplies.

• This configuration produces opposing magnetic fluxes in the core that serve

     to cancel in-phase noise signals appearing across the AC line.

• This mode allows much more filtering capability in a given core size than

     would be possible using differential filtering alone.

Use of common mode chokes therefore reduces component count as well as inductor size.

• Combining both common and differential mode chokes gives the power supply

     designer the added flexibility required to adjust the filtering to meet FCC, VDE,

     and other requirements as well as optimize the circuit for the particular noise levels

     and frequencies produced by each power supply design.

• 3 mm creepage and clearance from all terminations to the core
• 3750 Vrms, one minute isolation between windings
• UL1446 Class B (130℃) Insulation System (UL File E83628)
• Ambient temperature range: -40℃ to +85℃

Series in this family

3.  ET Family

Common Mode Power Line Choke

FEATURES:

• ·Closed rectanqular ferrite core
• ·2 section winding for excellent high frequency performance
• ·1% stray inductance for symmetrical interference suppression
• Rated voltage:250Vac
• Frequency:50/60Hz
• Insulation test voltage:2000V
• Operating temperature:-25℃ to +125℃

APPLICATIONS:

• Switch mode power supplies
• Suppression of common mode noise
• Compact switch mode power supplies
• Electronic ballast applications(LED bulb)
• Lighting

Series in this family

 4. ETV Family 

Common Mode Inductor

FEATURE:

• Rated voltage: 250V Max
• Hi-Pot: 1500Vac,3mA,3S Coil to Coil
• Operating temperature: -25℃ to +115℃
• Storage temperature: -25℃ to +65℃

Series in this family

 5. LFU Family

Common Mode Inductor

FEATURES:

• High inductance with low resistance
• High pulse-handling capability
• Industry best inductance/rated current ratio
• Suitable for wave soldering

APPLICATIONS:

• High power switch-mode power suppliesfor consumer electronics
• EMC/EMI suppressors
• Suitable for all kinds of 100 ~ 500W power supply, electronic ballasts, LED power supply

Series in this family

 6. SQ Family

Flat Wire Common Mode Choke Coil

Flat Wire Inductor High current, small profile, high efficiency with High frequency skin effect of flat wire, unit current density can reach 1.5-2 times of round copper wire, and the volume will be 0.5-1.0 times smaller under the same condition,Lower temperature coefficient, only around once layer winding, perfect efficiency of heat sink , the temperature raise is much lower than the toroidal inductor

FEATURES:

• Rated voltage (V): 85 to 250V AC, 50/60Hz
• Turns ratio: n1: n2=1:1
• Insulation resistance: 100mΩ min at 500DC
• Replacement for: EE16,EE19,EE25,EF16,EF20,EF25,UU10.5, UU16,toroidal common mode inductors
• Interturn capacitance is smaller than toroidal core, high insulation strength and high reliability
• The closed magnetic core design
• Single phase winding, thereby dramatically reduce stray capacitance
• EMI suppression is excellent
• Fully automatic winding, neat line arrangement, no overlapping, high production efficiency, low labor

APPLICATION:

• Switching power supply, Adapter and UPS
• Computer products
• LED power supply
• LCD TV & Monitor Displays Power Boards
• Consumer Electric Products & Battery Charger, Printers

Series in this family

7. SQS Family

SMD High Current Flat Wire Common Mode Choke

FEATURES:

• Compact size, low DCR, low leakage due to square core.
• High permeability material, High impedance at low frequency.
• High attenuation to noise, due to low stray capacitance.
• Flammability tested to UL 94 V-0.
• Low cost, high consistency with automated production.
• RoHS, REACH compliance, Halogen free available.
• High withstanding voltage between windings:2400VAC /60 sec.
• High Insulation resistance 100MΩ Min@ 500VDC between windings.
• Operating temperature:-40℃~+125℃ (Including coil temperature rise).
• Storage temperature:- 40℃~ +85℃.

APPLICATIONS:

• Solutions for use in a wide array of power supply circuits.
• High desity switching mode power supply devices.
• Ideal for use in consumer electroinics and industrial
• applications: LCD TV, Battery chargers, Power Adapter,Home appliances.
• Space saving for existing Common Mode Chokes.

Series in this family

 8. STR Family

SMD Line Filter

FEATURES:

• SMD Housing
• High Frequency Design
• Excellent Mechanical Strength
• Excellent Solderability
• High Reliability
• Low Profile
• Wire wound constructure common mode choke with best
• EMI suppression effect high impedance but very high rated current and low DCR.

APPLICATIONS:

• VCRs
• Video Cameras
• Communication System
• Automotive Systems
• Liquid Crystal Televisions
• Hard Disk Drives
• Suppression of common-mode interferences
• Compact electronic ballasts in lamps
• Compact switch-mode power supplies
• Network Systems
• Computer Peripheral Equipment
• Preventive measure against common mode noise radiation emissions from power line or else.
• Best for high current circuit such as car, wireless charging and power device design.

Series in this family

10. TRF Family

Common Mode Power Line Choke

TRF Seires toroid style common mode chokes are designed to provide the

highest common mode impedance over the widest frequency range. These

parts are ideal for any application requiring a high DC current bias and are

well suited for use in switch-mode power supplies. Common mode chokes

are most effective in filtering supply and return conductors with in-phase

signals of equal amplitude.

Differential mode inductors are available for filtering out of phase or uneven

amplitude signals.
TRF Series feature inductance values up to 120 mH and Irms ratings as high as 18 Amps.
1.1250 Vrms, one minute isolation between windings
2.Industry standard footprint.
3.Creepage and clearance = 3.2 mm
4.UL1446 Class B (130°C) Insulation System
(UL File E83628)

Series in this family

11. UT Family

Common Mode Inductor

FEATURES:

• Small size and large current;
• High reliability;
• Closed magnetic circuit, high inductance, small inductance deviation;
• Excellent eni resistance;
• Small distributed capacitance, low ripple coefficient:Rated voltage....250Vac
• Frequency:50/60Hz
• Insulation test voltage:2000V
• Operating temperature:-25℃ to +125℃

APPLICATIONS:

• Switch mode power supplies
• Suppression of common mode noise
• Compact switch mode power supplies
• Electronic ballast applications(LED bulb)
• Lighting

Series in this family

12. LFT Family

Common Modeinductors

FEATURES:

• High inductance with low resistance
• Excellent differential-mode suppression
• High pulse-handling capability
• Industry best inductance/rated current ratio
• Suitable for wave soldering
• Design complies with EN 60938-2
• RoHS- compatible

APPLICATIONS:

• Electronic ballasts for lamps
• High power switch-mode power suppliesfor consumer electronics

Series in this family

13. AICT Family

FEATURES:

• High Frequency Design
• Against radiated noise
• High Reliability
• Easily inserted into the PCB
• Operating Temperature:-25℃ to 105℃
• Storage Temperature:-25℃ to 105℃

APPLICATIONS:

• Measures against radiated noise along interface lines in personal computers.
• Word processors and related equipment
• Measures against common and normal mode noise along data lines in datacommunication terminals and digital equipment

Series in this family

14. LF Family

FEATURES:

• 0.3A to 10A ratings,low temperature rise
• 0.7mH to 100mH dual chokes
• Excellent Mechanical Strength
• 100KHz to 3MHz common mode resonance
• High Reliability and variant PCB-mount housing
• Low resistance and temperature rise
• Operating temperature: -40℃ to +105℃
• Storage Temperature: -40℃ to +105℃

APPLICATIONS:

• DC/DC, AC/DC line noise suppression
• Communication System
• Automotive Systems
• LCD/PDPTelevisions
• Computer Peripheral Equipment It accord with the standards of FCC VCCI CISPR FTZ,etc, eliminating of electromagnetic noise of power and signal circuit.

Series in this family

15. TPER Family

FEATURES：

• 10A to 39A ratings with low temperature rise (ΔT≤50°C @ rated current)
• 120μH to 1400μH dual chokes (±35% tolerance @10kHz)
• 100kHz to 3MHz common mode resonance (per impedance-frequency curves)
• High isolation voltage: 1500Vrms (TPER25) / 1000Vrms (TPER19)
• Robust SMT housing: ER19 (24.9×21.6×16.9mm) & ER25 (30.5×27×18mm) platforms
• Ultra-low DCR: Down to 1.4mΩ (TPER25-161Y)
• Wide temperature operation: -40℃ to +150℃ (TPER25 series)
• Tape and reel packaging: EIA481 compliant

APPLICATIONS:

• DC/DC & AC/DC line noise suppression in server PSUs/industrial SMPS
• Automotive EMC solutions for EV chargers & ADAS systems
• LCD/PDP TV power filtering
• 5G base station signal integrity
• Computer peripheral equipment (HDD/SSD controllers)

Complies with FCC, VCCI, CISPR, FTZ standards for electromagnetic noise elimination

16. LEF Family

FEATURES:

• 0.3A to 0.8A current ratings, low temperature rise
• 3.3mH to 30mH dual chokes in single package
• Excellent Mechanical Strength for THT mounting
• 10KHz test frequency for precise measurement
•  High Reliability with 1000V AC insulation rating
• Low DCR (0.36Ω to 1.48Ω) for minimal power loss
• Closed magnetic circuit design for better performance
• Operating temperature: -50℃ to +110℃
• Storage Temperature: -50℃ to +110℃

APPLICATIONS:

• DC/DC, AC/DC line noise suppression in 20-90W systems
• LED Power Supply and Electronic Ballasts
• Communication System power interfaces
• Automotive Electronics power conditioning
• LCD/PDP Television power management
• Computer Peripheral Equipment power filtering

Complies with major EMC standards including FCC, VCCI, CISPR, eliminating electromagnetic noise in power and signal circuits.

Why Choose Our Power Line Common Mode Chokes?

• Superior EMI/RFI Filtering:Effectively filters high-frequency noise, improving the overall performance and longevity of electronic devices.
• High Capacity & Versatility:With a wide range of current ratings and inductance values, these chokes are suitable for various industries and applications.
• Compact & Easy to Install:Designed for space-efficient installation with options for both surface-mount and through-hole configurations.
• Proven Durability:Built to withstand demanding conditions, ensuring long-term reliability and consistent performance.

Certifications & Quality Assurance

We take quality seriously. Our transformers are manufactured under strict quality control, with certifications such as ISO9001 and ISO14001 ensuring our products meet the highest standards.

Production Facilities

Shinhom operates four advanced manufacturing facilities in Jinan, Weinan, Xianyang, and Shenzhen, covering a total of 120,000 sqm. Our production capacity exceeds 200 million units annually, supported by over 1,100 skilled professionals and automated production lines.

Get Started Today

To learn more about the Power Line Common Mode Choke or request a quote, contact us today and discover how our chokes can improve your electrical systems' performance.

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