Surface Mount Common Mode Choke

For Purchasing Managers, Technical Directors & Operations Leaders who demand EMI suppression without blowing the budget, our surface mount common mode choke delivers up to 45 dB attenuation in a 0402 footprint, backed by

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Surface Mount Common Mode Choke – High‑Performance, Low‑Cost OEM/ODM Solutions

For Purchasing Managers, Technical Directors & Operations Leaders who demand EMI suppression without blowing the budget, our surface mount common mode choke delivers up to 45 dB attenuation in a 0402 footprint, backed by ISO‑9001 quality and a 7‑day lead‑time.

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The Real‑World Pain Points You’re Facing

  • Escalating Component Costs: Typical surface mount common mode chokes cost 30‑40% more than comparable Chinese OEM parts, squeezing your BOM.
  • Inconsistent Quality: Over‑temperature failures and out‑of‑spec inductance lead to costly redesigns and warranty claims.
  • Long Lead Times: Standard suppliers quote 4‑6 weeks, jeopardizing product launch schedules.
  • Limited Customization: Your design may need a specific DC resistance or a tighter tolerance that off‑the‑shelf parts cannot meet.
  • Regulatory Hurdles: Missing CE, FCC or RoHS certifications can delay market entry in the US and EU.

Result: Project overruns, delayed shipments, and reduced competitiveness.

Solve These Issues Now →

Our Proven Solution – Technical Superiority & Fast Delivery

Core Advantages

  • High‑Performance Core: Ferrite composition engineered for >45 dB attenuation from 10 kHz‑100 MHz.
  • Miniature Form Factor: 0402‑0404 sizes compatible with high‑density PCBs.
  • OEM/ODM Flexibility: Custom inductance, DC resistance, and coating (lead‑free, conformal) available.
  • Quality Assurance: ISO 9001, CE, FCC, RoHS, and VDE certifications; 100 % incoming inspection.
  • Speed to Market: 7‑day standard production, 48‑hour express for stocked SKUs.
  • Transparent Pricing: Tiered FOB pricing starting at US $0.12 per piece for volumes >10 k.

Technical Specification Sheet

Parameter Typical Value Unit Tolerance
Inductance (L) 10‑100 µH ±10 %
DC Resistance (DCR) 0.1‑5 Ω ±5 %
Operating Frequency 10 k‑100 MHz
Package 0402 / 0603 / 0805
Temperature Range -55 °C ~ +125 °C
Certification CE, FCC, RoHS, VDE

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Application Scenarios & Success Stories

  • Automotive Infotainment: 20 % reduction in EMI‑related re‑work for a Tier‑1 supplier (US $0.15 per unit).
  • Medical Imaging: Certified CE‑compliant choke enabled a Class‑II device to pass FCC Part 15 testing on first try.
  • Industrial Power Supplies: Custom 0603 choke lowered BOM cost by 35 % while meeting IEC 61000‑4‑3 standards.
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Trusted By Global Leaders – Social Proof & Certifications

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“Switching to Xinchangda’s surface mount common mode choke cut our EMI‑related failures by 42 % and saved us $0.08 per unit. Delivery was exactly 7 days as promised.” – John Miller, Procurement Manager, MedTech USA
“The OEM design service let us integrate a custom 0603 choke without redesigning the PCB. The cost‑benefit analysis showed a 28 % total savings.” – Linda Chen, Senior Engineer, AutoGear Inc.

Compliance & Certifications: CE, FCC, RoHS, VDE, ISO 9001, CB, GS, SAA, IPPC – all documents available on request.

Frequently Asked Questions

What is the typical lead time for a standard surface mount common mode choke?

Standard SKUs ship within 7 business days after order confirmation. Express production (stock‑available) can be completed in 48 hours.

Can you provide custom inductance values or special coatings?

Yes. Our R&D team offers OEM/ODM services for custom L, DCR, and conformal‑coat options (e.g., lead‑free, moisture‑resistant). Minimum order for custom runs is 5 k pieces.

Do the chokes meet FCC Part 15 and CE EMC requirements?

All our surface mount common mode chokes are tested and certified for FCC Part 15 Class B and CE EN 55022/55024 compliance.

What are the payment terms for first‑time overseas buyers?

We accept T/T (30 % advance, 70 % before shipment) or L/C at sight. For qualified accounts, net‑30 terms are available after the first successful order.

How do you handle after‑sales support and warranty?

All products carry a 12‑month warranty against material and workmanship defects. Our technical support team is available 24 h via email, WhatsApp, or phone.

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Ready to Reduce EMI Costs and Accelerate Time‑to‑Market?

Limited‑time offer: Free engineering sample (up to 10 pcs) and a money‑back guarantee if the choke fails to meet your spec within 30 days.

Stock limited – orders placed before May 15 2026 qualify for the free sample and express shipping.

What Our Customers Say

Emily Rodriguez, Supply Chain Manager, TechGear Corp (USA)

Industrial Isolation Transformer

"The sample arrived in 2 days, met all our EMI specs, and the price was 30 % lower than our previous supplier. We placed a 50 k order immediately."

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Markus Schmidt, Procurement Lead, ElektroMotive GmbH (Germany)

"Xinchangda’s ISO‑9001 system gave us confidence to approve their custom choke for our new electric‑vehicle charger. The 7‑day delivery saved us a critical launch window."

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Sarah Lee, Operations Director, MedSys Ltd (UK)

"Compliance was a nightmare until we found Xinchangda. All certifications were provided instantly, and the choke passed our internal EMC test on the first attempt."

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About the Author

Author Avatar

Dr. Alex Chen – Senior Magnetic Component Engineer, Xinchangda Electronic

With 12 years of R&D experience in EMI suppression solutions, Dr. Chen has authored 5 IEEE papers on ferrite core optimization and leads the OEM/ODM program for surface‑mount chokes. He regularly consults for Fortune‑500 automotive and medical OEMs.

Contact: grace01@xinchangdadz.com | Phone: +86 131 2825 6415

Huizhou Xinchangda Electronic – 14th Floor, Building A, Pushengwang Industrial Park, Sanhe Street, Huiyang District, Huizhou City, Guangdong Province, China

Tel: +86 131 2825 6415 / +86 0752‑3388753 | Email: grace01@xinchangdadz.com

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