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Add : Room 701, Building A1, No. 55 Runfa Road, Jiangning District, Nanjing, China
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EE4.4
INF
This EE4.4 offline transformer features a slim and compact structure that fits well in miniaturized circuit designs. It supports standard SMD assembly for automated production, with a wide operating frequency up to 1 MHz and a high primary current rating up to 40A. Its wide temperature range ensures stable and consistent performance in various industrial and power supply environments.
Small Power Adapters
Mobile Phone Chargers
Low Power SMPS Circuits
Consumer Electronics Power Supplies
Embedded Power Modules
IoT Devices
Compact AC-DC Conversion Systems
Physical Properties
| Order Code | L(μH) | n | lR(A) | ∫Udt(μVs) | VT(V(AC)) | RDC1(mΩ) | RDC2(Ω) |
| INF-EE4.4-33μH | 33 | 1:20 | 7 | 9 | 750 | 3 | 0.35 |
| INF-EE4.4-74μH | 74 | 1:30 | 7 | 13.5 | 750 | 3 | 0.8 |
| INF-EE4.4-132μH | 132 | 1:40 | 7 | 18 | 750 | 3 | 1.6 |
| INF-EE4.4-205μH | 205 | 1:50 | 7 | 22.5 | 750 | 3 | 2.5 |
| INF-EE4.4-295μH | 295 | 1:60 | 7 | 27 | 750 | 3 | 3.6 |
| INF-EE4.4-400μH | 400 | 1:70 | 7 | 31.5 | 750 | 3 | 4.6 |
| INF-EE4.4-820μH | 820 | 1:100 | 7 | 45 | 750 | 3 | 9.5 |
| INF-EE4.4-1280μH | 1280 | 1:125 | 7 | 56.2 | 750 | 3 | 13 |
| INF-EE4.4-1800μH | 1800 | 1:150 | 7 | 67.5 | 750 | 3 | 21 |
Technical Specifications
| 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 |
| 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 |
| Optional Packaging | Vacuum sealed packaging for customers with strict moisture-proof requirements |
