Customized EI66 Low Frequency Power Supply Transformers Square
Inverter 110V 220V1.Product DescriptionEI66 power supply transformers are compact, cost-effective
laminated transformers commonly used in low-power electronic
applications. The "EI" designation refers to their stacked E-shaped
and I-shaped iron core laminations, which reduce eddy current
losses, while "66" indicates the core's approximate 66mm width.
These transformers typically operate at 50/60Hz frequencies with
power ratings ranging from 5VA to 50VA, offering reliable voltage
conversion for circuits requiring isolation or step-up/step-down
functionality. Their robust construction features enameled copper
windings and varnish-impregnated cores for noise reduction. EI66
transformers are widely employed in power adapters, audio
equipment, control systems, and small appliances due to their
simple design, high efficiency (typically 85%-92%), and easy
manufacturability. Proper selection requires consideration of
input/output voltage, load current, regulation, and temperature
rise specifications. Here are three key features of Customized EI66 Low Frequency Power Supply Transformers / Square
Inverter Power Transformers: High Efficiency & Low Losses Robust Square Wave Compatibility Flexible Customization Supports tailored designs for input/output voltages, multi-tap windings, shielded layers (EMI
suppression), and potted construction for harsh environments (e.g.,
industrial/UPS applications).
2.Performance Characteristics| Feature | Description | | Core Material | High-grade silicon steel (EI-66 lamination) for low hysteresis
& eddy current losses. | | Frequency Range | Optimized for 50Hz/60Hz low-frequency operation (suitable for
inverter applications). | | Power Rating | Customizable from 10VA to 100VA (typical), depending on design
requirements. | | Input/Output Voltage | Tailored windings for AC/AC or AC/DC conversion (e.g., 110V/220V
input, 6V-48V output). | | Efficiency | 85%-93% (depends on load and design), with low no-load losses. | | Isolation | Reinforced insulation (up to 4kV withstand voltage) for safety
compliance. | | Thermal Performance | Class B/F insulation, rated for ≤75°C temperature rise under full
load. | | Construction | Vacuum impregnated windings, epoxy-coated for moisture/chemical
resistance. | | Noise Level | Low vibration & audible noise (<40dB) due to tight core
lamination. | | Custom Options | - Multiple secondary taps | | - Shielded windings (EMI reduction) | | - Potted or encapsulated designs. | | Compliance | Meets UL/IEC/EN61558 standards (optional certification). | | Applications | Inverters, UPS systems, industrial controls, renewable energy
systems. |
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