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EP7 Flyback Transformer DC Transformer

Characteristics:
·Simple design integration
·Fewer external components required
·Compact board size
·Cost-effective
·No need for an optocoupler
·Long-term voltage regulation reliability
·No degradation over time
·Consistent external components for different output voltages
·Easy customization of power supply by adjusting transformers and two feedback loop components

Options:
·Flyback transformer for PoE PD applications, supporting 36–57 V input and 200–500 kHz switching frequency
·Operating temperature range from –40 °C to +125 °C with 1.5 kVAC /1 min isolation rating
·Available in multiple output power levels and voltage options
·Designed for PoE-powered devices such as IP phones, WLAN access points, access control terminals, and security cameras

FAQ：

Q：When applying for samples, do I need to provide corporate qualifications or explain the purpose of the samples?
A：You only need to briefly explain the purpose of the samples (e.g., "for smart home controller R&D" or "for new energy vehicle component testing"), and no additional complex corporate qualifications are required. If you are an end-equipment manufacturer or R&D institution, you can also inform us of the product application scenario, and our engineers can recommend more suitable sample models for you to further shorten the testing cycle.

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Model:
EP7
Brand:
INF

EP7 Flyback Transformer DC Transformer

Product Description

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Product Overview

The EP7 flyback transformer is a high-frequency magnetic component designed for isolated DC/DC converters and Power over Ethernet (PoE) powered devices. Positioned between ultra-compact and mid-power transformer solutions, it delivers an optimal balance of power density, efficiency, and thermal performance.

It is widely adopted in systems requiring stable isolated power under limited space and dynamic load conditions, especially in network-powered and distributed power architectures.

High Power Density Design

Compared to smaller EP cores, the EP7 structure enables significantly higher energy throughput within a compact footprint:

Enhanced magnetic flux utilization for increased power capability
Optimized core geometry supporting higher saturation current
Suitable for power levels typically ranging from 10W to 35W

Advanced magnetic design techniques help maximize power density without increasing component size.

Design & Customization Flexibility

The EP7 transformer can be tailored to meet diverse application needs:

Custom turns ratio and inductance design
Multiple output voltage combinations
Optimization for specific switching controllers
Support for different mounting and pin configurations

Its adaptability reduces design complexity and accelerates time-to-market.

Physical Properties

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