Shenzhen Dowis Electronics Co.,Ltd
Shenzhen Dowis Electronics Co.,Ltd
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EE1625 High-Frequency Transformer Manufacturer Customized DW4959
Key Specifications/Special Features:
High frequency
Customized designs and specifications are accepted
Various types are available
Various types of transformers available, PQ, CI, UI, ETD,EFD, EP, ER, EPC, POT, RM and EE
High frequency transformer suitable for EL/CCFL inverter or DC/DC converter
Customized designs are accepted
Switching power and pulse transformer
Telecom and audio frequency transformer
Isolated and line matching and ignition transformer
EE5 current sensor and ADSL transformer
EFD series and ER series transformer
RM series and EP series transformer
EPC series and EE series transformer
1. DRAWING (UNIT: MM)
2. PROCESS OF WINDING
| Winding | Retaining Wall | PIN Position | Wire & Description | TS | Winding Method | Groove Position | Insulation Tape | Tube | Method of entering Axle | Direction of entering Axle | |||||
| Pin Side | Top | Start | End | Start | End | Tape Type | TS | Start | End | ||||||
| N1 | / | / | -3 | -2 | TIW-B , φ0.15mm×1 bar | 94 | Tightly wind 2 layers | Between Pin3 & 4 | Between Pin2 & 3 | 18.0mm | 1.1 | 26L×15mm | 26L×15mm | Pin1 | front |
| N2 | / | / | -8 | -7 | TIW-B , φ0.50mm×1 bar | 18 | Tightly and duplex wind 1 layer | Between Pin7 & 8 | Pin7 edge groove | 18.0mm | 2.1 | 21L×15mm | 21L×15mm | ||
| N3 | -9 | -10 | TIW-B , φ0.15mm×1 bar | 10 | Between Pin8 & 9 | Between Pin9 & 10 | 26L×15mm | 26L×15mm | |||||||
| N4 | / | / | -2 | -1 | TIW-B , φ0.15mm×1 bar | 46 | Tightly wind 1 layer | Between Pin1 & 2 | Pin1 edge groove | 18.0mm | 1.1 | 26L×15mm | 26L×15mm | ||
| N5 | 2L(t0.28) | / | -5 | -6 | TIW-B , φ0.15mm×1 bar | 22 | Tightly and duplex wind 1 layer | Between Pin4 & 5 | Pin6 edge groove | 18.0mm | 2.1 | 26L×15mm | 26L×15mm | ||
| N6 | (A) | (B) | 2UEW-F, φ0.40mm×1 bar | 8 | Top | Top | 23L×98mm | 23L×88mm | |||||||
| (Tranparency) | (black) | ||||||||||||||
3. CONSTRUCTION DIAGRAM
| Item | Test Terminal | Test Condition | Semi-finished goods | Equipment | |||
| Semi-finished goods | Manufactured goods | QC Exam | |||||
| Inductance Test | 3 | 1 | 10KHz,0.3V | 450uH±3% | 450uH±5.5% | 450uH±6% | TH1062 or equal |
| Leakage Test | 3 | 1 | 10KHz,0.3V | 40uH max | 40uH max | 40uH max | TH1062 or equal |
| (short connect to other Pin) | |||||||
| Direct Current Resistance | 3 | 1 | DC 25℃ | 5.0 Ω max | 5.0 Ω max | 5.0 Ω max | TH2511 or equal |
| 8 | 7 | 70 mΩ max | 70 mΩ max | 70 mΩ max | |||
| 9 | 10 | 400 mΩ max | 400 mΩ max | 400 mΩ max | |||
| 5 | 6 | 1045 mΩ max | 1045 mΩ max | 1045 mΩ max | |||
| A | B | 85 mΩ max | 85 mΩ max | 85 mΩ max | |||
| Turns Test | All Winding | 20KHz,1V | 140:18:10:22:8(±0.2Ts) | CH3250 or equal | |||
| High-Voltage Insulation Test | Primary——Secondary | AC-50Hz-5mA | 3500V,2 Sec | 4000V,2 Sec | 3500V, 3 Sec | CJ2670 or equal | |
| Primary & Secondary to Core | AC-50Hz-5mA | 1800V,2 Sec | 2000V,2 Sec | 1800V, 3 Sec | |||
| PIN1---PIN6,A | AC-50Hz-5mA | 500V,2 Sec | 800V,2 Sec | 500V,2 Sec | |||
| A---PIN6 | AC-50Hz-5mA | 500V,2 Sec | 800V,2 Sec | 500V,2 Sec | |||
| PIN7---PIN10 | AC-50Hz-5mA | 500V,2 Sec | 800V,2 Sec | 500V,2 Sec | |||
| ARC Test | Primary——Secondary | AC-50Hz-5mA | 4000±10V,3 Sec 仪器打开 ARC:6等级 (9.9mA) | CH7410 or equal | |||
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.