Hero Section: The Solution

Headline:

Compact Custom Common Mode Chokes: High Inductance for Signal & Power Integrity

Sub-headline:

Engineered for space-constrained electronics. As a specialized Custom Inductor Manufacturer, we deliver Compact Common Mode Chokes that achieve high inductance density (up to 10mH+) in small footprints, providing exceptional EMI suppression for signal lines and low-power adapters.

Key Highlights:

High Inductance Density: Packs a massive 10.0 mH inductance into a compact 20mm frame, offering superior low-frequency noise blocking.

Space-Saving Design: Vertical mounting structure maximizes PCB real estate usage without compromising filtering performance.

Precision Winding: High-turn-count winding (52 Turns) ensures high impedance and balanced performance for signal integrity.

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Reference Case Study: Model LFR2010-103MIN

Note: The specifications below are from our production model LFR2010-103MIN. This demonstrates our manufacturing capability for High Inductance Compact Filters.

Parameter	Specification (Reference Only)	Customization Range
Model P/N	LFR2010-103MIN	Custom P/N assignment available
Category	Common Mode Choke	Signal Line Filter / EMI Choke
Dimensions	21.0 x 20.0 x 13.0 mm	Scalable (e.g., 10mm - 30mm)
Inductance (L)	10.0 mH Min (@1kHz)	1.0mH - 100mH (High L Focus)
DCR (Resistance)	170 mΩ Max	Optimized by wire gauge
Wire Specs	0.40mm UEW	TIW / Litz Wire options
Turns	52 Turns (Ref)	Custom turn count
Structure	Vertical UU/ET Type	UU / ET / UT shapes

Engineer's Insight: The LFR2010 is a masterclass in density. By applying 52 turns of 0.4mm wire, we achieve a minimum of 10mH inductance. This high impedance is critical for filtering out noise in data communication lines or low-power AC adapters where space is at a premium.

Tailor This Choke to Your Needs

Small size, big performance. We customize Compact Common Mode Chokes for precision applications.

Achieving High Inductance in Small Spaces

● Core Selection: To get high inductance (10mH+) in a small package, we utilize High Permeability Ferrite (High-u) or Nanocrystalline cores. This allows us to achieve the target impedance with fewer turns or within a smaller magnetic path.

● Precision Winding: Our automated winding machines handle fine wires (0.1mm - 0.5mm) with precise tension control, ensuring consistent inductance and leakage parameters.

Signal vs. Power Optimization

● Signal Line Filters: For data lines (CAN-bus, Ethernet), we optimize for Bifilar Winding to maximize coupling and reduce differential mode signal attenuation.

● Power Line Filters: For AC adapters, we balance inductance with DCR to ensure the component doesn't overheat while passing the required current.

Industries We Serve

Typical applications for our Compact Common Mode Chokes.

IoT & Smart Home:

EMI filtering in compact smart plugs, sensors, and Wi-Fi modules.

Consumer Electronics:

Low-power AC-DC adapters for mobile devices.

Automotive Data:

CAN-bus and signal line noise suppression.

Industrial Control:

Signal integrity protection in PLC I/O modules.

Quality Assurance & Testing

Strict verification for precision components.

Inductance Precision: 100% tested (Min 10mH) to ensure filtering effectiveness.
Turn Count Verification: Automated checks (52 Turns) to guarantee magnetic characteristics.
DCR Measurement: Resistance verified (Max 170mΩ) to control power loss.
Hi-Pot Test: Dielectric strength tested to ensure isolation between windings.