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EF16 4+4 Pin Flyback Transformer for Offline AC-DC SMPS Compact Power Applications

Key Features
High-Frequency Operation: Engineered to operate at switching frequencies ranging from 50 kHz to 500 kHz and beyond. This design enables a more compact physical footprint while boosting power conversion efficiency—critical for space-constrained electronic systems.

Low-Loss Materials: Incorporates high-performance ferrite cores (such as N27 or N87 materials) paired with optimized winding configurations. These components work in tandem to minimize power dissipation, enhancing overall energy utilization and system reliability.

Typical Applications
Switching Mode Power Supplies (SMPS)/Consumer Electronics Chargers/
Industrial & Medical Equipment/LED Drivers & Lighting Equipment

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Product Description

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Product Overview

The EF16 4+4 Pin Flyback Transformer is a compact magnetic component designed for low-power offline AC-DC switching power supplies. It is widely used in flyback converter circuits, providing efficient energy transfer and reliable electrical isolation.

With its small EF16 ferrite core and 4+4 pin configuration, this transformer is ideal for space-constrained designs and cost-sensitive applications. It delivers stable performance, low loss, and consistent operation under high-frequency conditions.

Custom design services are available to meet specific application needs.

Typical Applications

AC-DC Power Supplies
Flyback Converters
Mobile & Device Chargers
LED Drivers (low power)
Smart Home Devices
Consumer Electronics

Technical Specifications

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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