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EI22 High Frequency Transformer (4+4 Pin) for SMPS, DC-DC Converters & Power Supply Applications

The EI22(4+4) High Frequency Transformer, with its anti-interference core, compact form factor, and wide-temperature stability, delivers a professional solution that balances reliability and space efficiency for miniature power supplies, LED drivers, and more.

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Product Description

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Thermal Performance & EfficiencyTechnical Specifications

Designed for high-frequency switching environments, the EI22 transformer delivers excellent thermal and efficiency performance:

Low core loss under high-frequency operation
Controlled temperature rise during continuous load
Improved heat dissipation due to larger core size

Typical high-frequency transformers operate efficiently within tens to hundreds of kHz, ensuring stable performance in SMPS systems.

Application Range

The EI22 high-frequency transformer is suitable for a wide range of medium-power applications:

Switching mode power supplies (SMPS)
DC-DC converters and power modules
LED drivers and lighting systems
Industrial control equipment
Consumer electronics and home appliances

Its versatility makes it a preferred choice for both industrial and commercial power designs.

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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