Shenzhen Dowis Electronics Co.,Ltd
| Payment Terms | T/T, L/C |
| Delivery Time | 3-4Weeks |
| Packaging Details | Carton Box |
| Model | DW3404 |
| Name | DIP Power Inductor |
| Type | EF |
| Frequency | 1KHz -500KHz |
| Phase | Single |
| Application | Power, lighting, etc. |
| Brand Name | Dowis |
| Model Number | EF20, EF Series |
| Certification | CE, UL, RoHs, ISO9001, 16949 |
| Place of Origin | CN |
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Product Specification
| Payment Terms | T/T, L/C | Delivery Time | 3-4Weeks |
| Packaging Details | Carton Box | Model | DW3404 |
| Name | DIP Power Inductor | Type | EF |
| Frequency | 1KHz -500KHz | Phase | Single |
| Application | Power, lighting, etc. | Brand Name | Dowis |
| Model Number | EF20, EF Series | Certification | CE, UL, RoHs, ISO9001, 16949 |
| Place of Origin | CN | ||
| High Light | EF20 Transformer DIP Inductor ，UL EF20 DIP Inductor ，1KHz To 500KHz coil inductor | ||
EF20 DIP Power Inductors Manufacture Customized DW3404
Application: computer SWITCH POWER, liquid crystal display (LED), SPC SWITCH, communication equipment, energy saving lamp and other electronic appliances; All kinds of power supply instruments and instrument devices used in air conditioning, microwave oven, mechanical and electronic, medical and chemical engineering, post and telecommunication industries; Home appliances, office automation, network communication, industrial control, audio and video equipment, new energy, medical instruments, precision instruments, automotive electronics and lighting industries.
1. Drawing
2. CIRCUIT DIAGRAM
3. CONSTRUCTION DIAGRAM
4. ELECTRICAL CHARACTERISTIC
| 序号 No. | 项目 ITEM | 测试端 TERMINALS | 技术要求 SPECIFICATIONS | 公差 TOLERANCE | 单位 UNIT | 测试条件 TESTING CONDITION | 测试仪器 TESTING |
| 1 | 电感量 INDUCTANCE | 1~4 | 3.7 | ±10% | mH | 1KHz/0.25V | CH3252 |
| 2 | 漏 感 LEAKAGE IND | ||||||
| 3 | 直流电阻 RESISTANCE | 1~4 | 5.6 | MAX | Ω | AT 25℃ | CH2512 |
| 3~6 | 510 | MAX | mΩ | ||||
| 4 | 耐压测试 HI-POT | PRI VS SEC | AC,1000 | / | V | 50Hz/5mA/2Sec | CJ2670 |
| ALL Pin VS Core | AC,1000 | / | V | 50Hz/5mA/2Sec | |||
| 5 | 匝比极性 TURNS RATIO | ALL winding | 249.5:19.5 | ±0.2 | Ts | 20KHz/5V | CH3252 |
5. WINDING SPECIFICATION
| 序号No. | 起头 START | 收尾 END | 线材 WIRE(mm) | 圈数 TURNS | 绕制方式 WINDING | 绝缘胶带(mm) INSULATION TAPE(mm) | 绝缘挡墙(mm) MARGIN TAPE(mm) | ||||
| MATERIAL | Thick/Width | Ts | Pin1 | Pin9 | Ts | ||||||
| N1 | 1 | 4 | 2UWE-B, Φ0.20×1P | 249.5 | Closed | Polyester tape | 0.05/12.5 | 10 | / | / | / |
| N2 | 3 | 6 | 2UWE-B, Φ0.20×1P | 19.5 | Spaced -1 layers | Polyester tape | 0.05/12.5 | 3 | / | / | / |
| *挡墙层数参考,与绕线高度平齐为要(Margin barrier tape layer of the reference, and winding same height as you want) | |||||||||||
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.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2008
Total Annual:
13,000,000.00-14,800,000.00
Employee Number:
480~500
Ecer Certification：
Active Member
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 cert... 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 cert...
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