Factory wholesale 220v To 120v Converter - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe
Factory wholesale 220v To 120v Converter - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe Detail:
There are two basic types of DC transformers, namely, a DC-DC converter whose output voltage is regulated and a “DC transformer” whose output voltage is adjusted with the input.
The basic requirements:
(1) Realize the electrical isolation of input and output voltage and the proportional relationship between input and output, and can realize multiple output;
(2) Use transformer leakage inductance for energy transmission, no energy consumption, conversion efficiency of 1, and high power density;
(3) The output does not need filter inductance, which can greatly reduce the volume and weight of the output filter, with good dynamic performance and fast transient response;
(4) The system frequency bandwidth can transmit voltage without distortion;
(5) Open loop control is adopted, the control circuit is simple, it is easy to realize soft switching, and the switching frequency can be further improved;
(6) High reliability, small electromagnetic interference to power supply and electrical equipment.
CONFIGURATION & DIMENSIONS:（Unit: mm）
NOTE
1.1 FIXING TAPE FOR CORE: 0.025×6.5mmx3.0Ts；
1.2 PIN2.3,6,7, REMOVE;
1.3
DIMENSIONS & OUTLINE DRAWING
NOTE：
A. Vacuum Varnishing；
B. Net Weight: 13.2g ±10% /pcs。
C. ( )=TEELON TUBE
WINDING SPEC
| NO. |
MARGIN |
TERMINAL |
WIRE | TURNS | WINDING METHOD | INSULATIONI BETWEEN COILS | ||
| 1-4 | 5-8 | START | END | |||||
| W1 |
（4） |
（5） | UEW-H Φ0.2 | 280T | SOLENOID | 0.05*13.5mm/2T | ||
| W2 |
（1） |
（8） | UEW-H Φ0.5 | 20T | SOLENOID | 0.05*13.5mm/2T | ||
ENVIRONMENTAL TEST
| NO | TITLE | CONDITION | REMARKS |
| 1 | HIGH TEMPERATURE | 120℃±2.0℃ 96Hrs | Must meet the requirements ofNo.4-4 and 4-5. |
| 2 | LOW TEMPERATURE | -25℃±2.0℃ 96Hrs | |
| 3 | LOW TEMPERATURE | +40℃±5；96±3%R.H; 120Hrs | |
| 4 | THERMAL SHOCK | -25℃±2.0℃ 30Minutes;Room Temp 10Minutes;
105℃±2.0℃ 30Minutes; 5 Cycles Room Temp 10Minutes; |
Must meet the requirements ofNo.4-4, 4-5 and must operate
properly. |
| 5 | 120℃ | Must operate properly | |
| 6 | -25℃-120℃ | ||
| 7 | -30℃~+90℃ | ||
PHYSICAL TEST
| NO | TITLE | CONDITION |
| 1 | TERMINAL STRENGTH | The terminal shall be not remarkably damage by pulling and pushing of 1.02kg for 30± 5 seconds in the axis directions. (JIS C 0051) |
| 2 | VIBRATIONRESISTANCE | Appearance and structure shall be no abnormality after vibrating at the frequency varying uniformly between the approximate limits and 10 and 55 and 10 Hz at 1 minute and the amplitude of 1.5 mm for 2hrs in 3 mutually perpendicular directions. (JIS C 0040) |
| 3 | SOLDERABILITY | Solder shall be attached uniformly around the dipped portion after dipping into solder at 235±5℃ for 3.0±0.5 seconds。(JIS C 0050) |
| 4 | SOLDER HEATRESISTANCE | No remarkable damage after dipping into solder at 260±5℃ for10±1seconds up to 1.0-1.5mm from the attachment surface. (JIS C 0050) |
Application
Widely used in the field of controlling switch power supply, LCD power supply, high-power UPS inverter power supply, computer power supply, energy-saving lamps
Kindly Reminder
1. About the SAMPLE. Please provide specification or sample materials, we will evaluate your product, design and produce samples.
2. About PRICE. Transformers are customized products. Due to the difference in material and design, even if the model is the same,the price is different. The price also depends on the complexity of the parameters and the number of orders.
3. Regarding SHIPPING. SamplE within 5-7 days; mass production within 10 to 20 days.
4. Packaging, logistics, according to the specific requirements of the purchase and sale contract.
Packing & Delivery
FAQ
Product detail pictures:
Related Product Guide:
We consistently carry out our spirit of ''Innovation bringing development, Highly-quality ensuring subsistence, Management promoting benefit, Credit attracting customers for Factory wholesale 220v To 120v Converter - SANHE Ferrite Core High Frequency EFD20 SMPS Flyback Transformers – Sanhe, The product will supply to all over the world, such as: Buenos Aires, Jeddah, Angola, You can do one-stop shopping here. And customized orders are acceptable. Real business is to get win-win situation, if possible, we would like to provide more support for customers. Welcome all nice buyers communicate details of products and ideas with us!!
By Edwina from Philippines - 2017.06.19 13:51
The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
By Rosemary from Surabaya - 2018.06.09 12:42
