■ Magnetic core specification: SQ1010; Vertical common mode choke coil
■ Freeze frame voltage: AC/DC 250V;
■ Insulation withstand voltage: AC1.5kV 60sec;
■ Working temperature range: -25 ℃~+125 ℃
■ Storage temperature range: -25 ℃~+100 ℃
■ Power range: Within 36W
The SQ1010 vertical common mode choke coil is a high-performance, surface-mount component designed for robust suppression of unwanted common-mode noise in demanding electronic circuits. Its compact vertical form factor saves valuable PCB space while delivering excellent impedance characteristics.
Features
Exceptional Noise Suppression: Effectively attenuates common-mode noise across a wide frequency range, improving EMI/EMC compliance (EN 55032, FCC Part 15, etc.).
High Current Handling: Rated for significant current loads, making it ideal for power lines and high-speed data interfaces.
Compact Vertical Design (10x10mm Footprint): Saves crucial horizontal PCB real estate. common mode choke coil perfect for dense circuit layouts and height-restricted applications.
Wide Operating Temperature Range (-40°C to +125°C): Ensures reliable performance in harsh environmental conditions and demanding applications.
Low DCR (DC Resistance): Minimizes power loss and voltage drop on the signal/power lines.
RoHS & REACH Compliant:High current common mode choke coil manufactured adhering to global environmental standards.
Vertical Mounting (Pin Orientation): Offers mechanical stability and facilitates automated placement.
Common Mode Choke Application
1. Industrial Motor Drive Systems
• Placement: Between the DC bus and inverter stage
• Benefit: Suppresses common mode noise generated by high-frequency switching, preventing false triggering of protection circuits
• Result: Improved motor control precision and reduced electromagnetic emissions
2. Server Power Supplies
• Usage: Input filtering for 1-3kW power units
• Advantage: Maintains power quality while meeting EN 55032 Class B emissions standards
• Installation Tip: Mount close to power connectors with minimal trace length
3. Automotive Battery Management Systems
• Application: EV/HEV battery pack interfaces
• Performance: Withstands automotive temperature cycles while filtering charging/discharging noise
• Critical: Provides isolation between high-voltage battery and control circuitry
Electrical characteristics: (at 25℃)
Product No. | Inductance(mH) | Wire Diameter | Current Resistance (mΩ) | Corresponding Round Wire Diameter | Working Current |
SQ1010-10.0mH | 10.0 min | 0.10*0.7-36Ts REF | 200Max | 0.314 | 0.8-1.2A |
PCB board aperture ≥ Ø1.2mm

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Tel: 0086-519-83976620
WhatsApp: +86-13806118535
Email: liujindong@nfdq.cn
No. 6, Xinxin Intelligent Industrial Park,Changzhou, Jiangsu
Changzhou Southern Electronic Element Factory Co., Ltd. is located in the city of Changzhou, which has a long history in Jiangsu Province. It is situated in the most active economic area in Yangtze River Delta Centre. The transport is very convenient. Expressway, Fast railways run though it. And it only takes one and half hours to reach Shanghai or Nanjing city. Airplane from here is through to major cities in China.
Changzhou Southern Electronic Element Factory Co., Ltd. was founded in 1989. After several years' development and effort, it has invested and opened up three subsidiary companies, in Yancheng city, Huai'an city in Jiangsu Province, and Lang'xi City in Anhui Province respectively.