Shenzhen Dowis Electronics Co.,Ltd
| Payment Terms | T/T, L/C |
| Delivery Time | 3-4Weeks |
| Packaging Details | Carton Box |
| Name | ETD34 Transformer |
| Size | 43*26mm |
| Brand Name | Dowis |
| Model Number | ETD34, ETD 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 | Name | ETD34 Transformer |
| Size | 43*26mm | Brand Name | Dowis |
| Model Number | ETD34, ETD series | Certification | CE, UL, RoHs, ISO9001, 16949 |
| Place of Origin | CN | ||
| High Light | 265V High Voltage Customized Transformer ，High Voltage Transformer DW4173 ，90V etd34 transformer | ||
ETD34 High-Frequency Transformer Manufacturer Customized DW4173
EE Series Transformer are features with the characteristics of wide range operation voltage and high working frequency, large output power, thermal stability.
PQ Series Transformer are features with the characteristics of strong anti-interference, small distributed capacitance, high impedance, low transmission attenuation and low temperature.
ETD Series Transformer are features with the characteristics of high operation voltage and large output power, thermal stability.
1. DRAWING (UNIT: MM)
2. PROCESS OF WINDING
| winding | Barrier Tape | PIN Position | Wire & Description | TS | Winding Method | Groove Position | InsulationTape | Tube | Method of entering Axle | Direction of Axle | |||||
| PIN 8-14 | PIN 1-7 | Start | End | Start | End | Tape type (High -temperature adhesive tape) | TS | Start | End | PIN 1-7 Towards right. | front | ||||
| N1 | / | / | (1) | (2) | Silk covered wire: 2UEW-F,φ0.1mm×50P | 32 | Tightly wind 4 layers | PIN 1 Groove | PIN 2 Groove | 10.0mm | 2 | 17L*15mm | 17L*15mm | ||
| / | / | (4) | (5) | A thermistor is placed on the outer layer of N1 winding near pins 4 and 5
| PIN 4 Groove | PIN 5 Groove | 24L*6mm | 24L*6mm | |||||||
| N2 | / | / | (14) | (10) | Silk covered wire: 2UEW-F,φ0.1mm×100P | 2 | Wind 2 sets of wires together, tightly wind 2 layers | PIN 14 Groove | PIN 10 Groove | 7.0mm | 2 | 14L*15mm | 14L*15mm | ||
| N3 | / | / | (9) | (12) | Silk covered wire: 2UEW-F,φ0.1mm×100P | 2 | PIN 9 Groove | PIN 12 Groove | 14L*15mm | 14L*15mm | |||||
3.ELECTRIC PERFORMANCE INDEX
| Item | Test Terminal | Test Condition | Standard Request | Equipment | |||
| Semi-finished goods | Manufactured goods | QC Exam | |||||
| Inductance Test | 1 | 2 | 100KHz, 0.3V | 682~742uH | 682~742uH | 680~750uH | TH1062 Or equal |
| Leakage Test | 1 | 2 | 100KHz, 0.3V( short circuits to all winding) | 60~80 uH | 60~80 uH | 60~80 uH | |
| Q Value | 1 | 2 | 100KHz, 0.3V | 200 MIN | 200 MIN | 200 MIN | |
| Direct Current Resistance | 1 | 2 | DC25℃ | 100mΩ max | 100mΩ max | 100mΩ max | TH2511 Or equal |
| 14 | 10 | 5mΩ max | 5mΩ max | 5mΩ max | |||
| 9 | 12 | 5mΩ max | 5mΩ max | 5mΩ max | |||
| 4 | 5 | 50KΩ min | 50KΩ min | 50KΩ min | |||
| Turns Test | All windings | 20KHZ/1V | 32:2:2(±0.2Ts) | CH-3250 | |||
| Short Circuits Test | Pin:9-10 | ||||||
| Insulation Resistance | Np-Ns | 500Vdc | 100 MΩ MIN | ||||
| High-Voltage Insulation Test | N1-N2,N3 | AC-50Hz-1mA |
3750Vac 2 Sec |
4500Vac 2 Sec |
3750Vac 60 Sec | CJ2670 Or equal | |
| N1-Core | AC-50Hz-1mA |
2400Vac 2 Sec |
2880Vac 2 Sec |
2400Vac 60 Sec | |||
| N2,N3-Core | AC-50Hz-1mA |
2400Vac 2 Sec |
2880Vac 2 Sec |
2400Vac 60 Sec | |||
4. Schematic Diagram
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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