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Shenzhen Dowis Electronics Co.,Ltd
5 Years
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| Brand Name : | Dowis |
| Model Number : | EFD20, EFD Series |
| Certification : | CE, UL, RoHs, ISO9001, 16949 |
| Payment Terms : | T/T, L/C |
| Delivery Time : | 3-4Weeks |
EFD20 Planar Power Transformer Manufacturer Customized DW6192
Product name: High Voltage Transformer
Model
No:EE/ER/EFD/EQ/PQ/POT/RM10,EPC17,EEL19,EOD21,ED22,EPC25,ED29,etc
Application:LED/PCB/Audio
Certification:UL/ISO9001/ISO14001/RoHS/Reach
Components:Ferrite core, wire,Bobbin,Insulations etc
Core:MnZn power ferrite core
Wire:Enameled copper wire,Triple insulated wire etc
Shape Types:Vertical,Horizontal,with/without base,Smd etc
Working Frequency:1KHz-100MHz
Inductance Range:Unlimited
DCR Range:Depend on customers' request
Storage Temperature:-40℃ to +85℃
Working Temperature:-40℃ to +105℃
Storage Humidity:30% to 95%
1. Drawing (Unit: mm)
2. Environmental conditions
3. Electrical Characteristics
| Item | Unit | Test Terminal | Test Condition | MIN | NOR | MAX |
| Inductance Test | µH | 4-2 | 100KHz,0.3V, Ser | 760 | 800 | 840 |
| Leakage Test | µH | 4-2 | 100KHz,0.3V, Ser (other winding short circus) | / | / | 2 |
| Q Value | / | 4-2 | 100KHz,0.3V, Ser | 140 | / | / |
| Resistance Strength | mA | N1,N2—N3,N4,N5 | 3750Vac,60s | / | / | 1 |
| mA | N1,N2—Core | 2500Vac,60s | / | / | 1 | |
| mA | N3,N4,N5—Core | 2500Vac,60s | / | / | 1 | |
| Direct Current Resistance | Ω | 4-2 | 25℃ | / | / | 2.0 |
| mΩ | 7-6 | 25℃ | / | / | 140 | |
| mΩ | 9-10 | 25℃ | / | / | 310 | |
| mΩ | 15-16 | 25℃ | / | / | 210 | |
| mΩ | 13-14 | 25℃ | / | / | 100 | |
| Insulation Resistance | MΩ | Np-Ns | 500Vdc | 100 | / | / |
Shenzhen Dowis Electronics Co., Ltd. is a professional manufacturer of electronic transformers, inductors, and filters integrating R&D, production, and sales. It is a national high-tech enterprise and has passed the IATF16949:2016 automotive industry quality management system certification, the product has passed the "UL""CQC" and other safety certifications. The products are widely used in communication equipment, new energy vehicles, industrial control equipment, high-power LED drives and other market areas. The industry has high visibility. In addition to the domestic market, but also exported to many countries in Europe and the United States.
In order to further expand production capacity, it has set up a special test area construction area in zhaoqing YueGui cooperation in 2018 of 14000 square meters of manufacturing center named ZhaoQing Sheng Xiang electronic technology co., Ltd. Its management technical team has rich experience in cooperating with customers from well-known domestic enterprises and overseas. The design of products can fully follow customer’s needs and services with a good quality control system, and it has been recognized by many famous enterprises as the core suppliers. We look forward to cooperating with you.
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