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SMT Common Mode Line Filter for Compact PCB EMI Suppression Applications

This component features ultra-high common-mode impedance, compact size, 1:1 turns ratio and high rated current, complying with 40/125/21 climatic category and UL flammability rating. It is ideal for common-mode noise suppression in power supplies and data lines.

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SMT Common Mode Line Filter Surface Mount Common Mode Filter High Frequency SMT Common Mode Filter SMD Common Mode Choke Common Mode Line Filter Common Mode EMI Filter Common Mode Noise Filter

Product Description

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Product Overview

The SMT Common Mode Line Filter is developed for compact electronic systems requiring efficient suppression of common-mode interference in high-density PCB environments. Designed with a surface-mount structure, it helps improve electromagnetic compatibility while minimizing occupied board space.

This filter effectively reduces high-frequency noise generated by switching circuits, digital communication interfaces, and compact power modules, contributing to more stable system operation and cleaner signal transmission.

Its SMT-compatible design supports automated assembly processes and modern miniaturized electronic manufacturing requirements.

Customized impedance characteristics, package sizes, and filtering solutions are available for various electronic applications.

Key Features

Compact SMT mounting structure
Efficient common-mode noise filtering
Optimized for high-density PCB layouts
Suitable for automated SMT production
Stable high-frequency EMI suppression
Low-profile electronic integration
Improved signal stability performance
Flexible customization capability

Typical Applications

Consumer Electronic Devices
Communication Interfaces
Embedded PCB Systems
Portable Electronic Products
Compact Switching Power Modules
IoT Electronic Devices
Digital Signal Circuits

Physical Propertie

Order Code	L (mH)	LS (nH)	lR (A)	RDC max. (Ω)	VR (V)	VT (V(AC))
INF-UCF-0.013mH	0.013	110	10	0.0027	80	500
INF-UCF-0.056mH	0.056	330	7	0.0047	80	500
INF-UCF-0.12mH	0.12	680	5.5	0.0105	80	500
INF-UCF-0.32mH	0.32	2200	3.25	0.029	80	500
INF-UCF-1.5mH	1.5	13000	1.5	0.12	80	500
INF-UCF-4.7mH	4.7	25000	0.75	0.52	80	500
INF-UCF-10mH	10	83000	0.5	0.92	80	500
INF-UCF-28mH	28	220000	0.3	2.8	80	500
INF-UCF-47mH	47	460000	0.25	4	80	500
INF-UCF-68mH	68	960000	0.2	5	80	500
INF-UCF-100mH	100	780000	0.15	8.5	80	500

Technical Specifications

Customization & Procurement

Main Category	Subcategory	Details
MOQ	Prototyping & Small-batch	10 piece minimum order
	Sample Service	Free proofing & custom service, 5 free samples (shipping at buyer’s cost)
	Bulk Order	5,000 pieces and above with bulk pricing
Lead Time	All Standard Components	Shipped within 5–7 working days
	Custom Inductance / Pin Design (Sample)	Sample order confirmed within 5–7 working days
	Custom Inductance / Pin Design (Mass Order)	Shipped within 15–30 working days
Payment Terms	Main Payment Term	T/T in advance, L/C at sight
	Procurement Standard	Complies with global enterprise procurement standard for passive components
	Quality Deposit	No quality security deposit required
	Accepted Terms	FOB Shanghai / Nanjing / Hong Kong, T/T Advance
Quality Assurance	Manufacturing Defects	Free replacement for issues caused by manufacturing defects
Quality Assurance	Inspection Report	Batch inspection reports available as certification upon customer request
Packaging Specifications	Updated Packaging (2026)	Blister tray packaging; Sealed Tape & Reel for SMD products
Packaging Specifications	Optional Packaging	Vacuum sealed packaging for customers with strict moisture-proof requirements