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EER28 PFC Choke for High-Efficiency AC-DC Power Supplies and Industrial Power Systems

Characteristics:

·High operating efficiency
·Excellent EMC performance
·Ultra-low profile with a minimum height of 13.1 mm
·Compact footprint
·Suitable for mains voltage applications
·AC isolation voltage rated at 1.5 kV
·Operating temperature range: -40 °C to 125 °C

Options:

· High operating efficiency and excellent EMC performance
· Ultra-low profile with a height of 13.1mm and compact footprint

· Mains voltage compatible with 1.5kV AC isolation voltage
· Operating temperature range: -40 °C to 125 °C
· Suitable for active PFC circuits, 75–250 W SMPS and lighting applications (DCM operation mode)

Common Applications:

·Active Power Factor Correction (PFC) Function
·Suitable for Lighting Applications
·SMPS Designed for 75 W–250 W Power Range
·Operating Mode: Discontinuous Conduction Mode (DCM)

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EER28 PFC Chokes

Product Description

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Product Overview

The EER28 PFC Choke is engineered for high-efficiency AC-DC power supplies and power factor correction circuits in industrial and commercial electronic systems. Designed with a high-performance EER28 ferrite core and precision winding technology, it provides stable inductance, low core loss, and excellent current handling capability.

This choke is widely used in switch-mode power supplies (SMPS), LED drivers, industrial automation equipment, and energy-efficient power conversion systems where low harmonic distortion and improved power factor are essential.

Its optimized structure supports reliable long-term operation while enabling compact and efficient PCB layouts for modern electronic designs.

Key Features

Optimized for power factor correction (PFC) circuits
High current handling capability for industrial power systems
EER28 ferrite core with low core loss
Stable inductance over wide operating conditions
Excellent thermal stability and efficiency
Reduced electromagnetic interference (EMI)
Compact structure for high-density PCB designs
Customizable inductance and mechanical configuration

Typical Applications

AC-DC Switching Power Supplies
PFC Stages in SMPS Systems
LED Drivers and Lighting Equipment
Industrial Automation Power Modules
Renewable Energy Converters
Telecom and Communication Power Systems
Consumer and Commercial Electronics

Physical Propertie

Order Code	V_IN (V)	L (μH)	n	l_R (A)	I_SAT (A)	R_{DC1 max} (mΩ)	R_{DC2 max} (mΩ)	V_T (V(AC))
INF-EER28-150μH	85-265V(AC)	150	9:17:1	1.5	12	190	140	800

Technical Specifications 屏幕截图 2025-10-24 105735

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